Plastic Molding Manufacturing Tips for Medical Industry

Plastic Molding Manufacturing Tips for Medical Industry

Dec 21, 2020
By hqt

Plastic Molding Manufacturing: Medical Industry 

Injection molding has played a huge part in the medical industry, it has opened doors for many new techniques and methods that have become widely popular. Plastic molding manufacturing has been used in the development of medical equipment, devices, components and so much more.

You May Also Read: 5 Advantages of Outsourcing Your Plastic Injection Molding Service

One of the main and prominent advantages of injection molding in this particular field is how accurate and on point results it yields. But there are certain tips and tricks that you should know about before starting. But before we start, let us learn a bit more about it.

plastic molding manufacturing

 Advantages of injection molding manufacturers in the medical industry:

The medical analysts have noticed the fact that the equipment that has been manufactured through this process is much more accurate and fulfills their needs and requirement in the most effective manner. It provides them with a cost-effective and efficient. Plastic Molding Manufacturing is applied in the following ways:

  • Implantable segments 
  • Measuring utensils, test tubes, and different holders
  •  Lodgings and housings for clinical and lab hardware
  • Careful hardware and parts
  • Medication conveyance gear and segments
  • Muscular health

 The above listed are some of the few ways where Plastic Molding Manufacturing can be applied, but in reality, this process is applicable in almost every manufacturing project which requires detailed work and 100% accuracy and is also easy to sterilize.

The medical industry has seen tremendous benefits that they have yielded out from injection molding manufacturing. They have found better and more effective ways for the methods and materials being used.


We all are aware that how expensive it is to manufacture, especially when medical equipment is concerned. Even more so, having to produce this equipment in a bulk can be very hard on your pocket. However, this problem has been solved with injection molding manufacturing. This process is considered to be the most effective, monetarily. Mostly, when you have to produce in a large amount.


The medical industry is a field in which accuracy and exact measurements are mandatory. Each millimeter can make a huge impact on the result. Hence, it is something that cannot be compromised. But now this isn't a worry. With the new injection molding manufacturing process, it is a guarantee that you will be able to yield out a 100% accurate result. This high-quality process can give you extremely reliable results.

Material determination

Plastic injection molding takes on one of the broadest material choices of any assembling cycle. While clinical evaluation prerequisites essentially put a limit on this field, the quantity of materials that meet these necessities is very important. We'll examine material choice later in this piece.


Many plastics utilized in injection molding offer predominant strength and solidness, opposing cruel conditions, vibration, and gruff power without breaking. Numerous injection molding manufacturing processes have warmth protection to disinfected multiple times through autoclave and different methods.

 Toxin obstruction

The plastic materials utilized in clinical gadget infusion shaping are intended to be impervious to foreign substances and handily disinfected. In addition, the infusion forming measure itself is effectively ready to meet FDA and different necessities.

 Clinical Device Plastic Injection Molding Considerations

Plastic infusion forming for clinical gadgets is a basic cycle where the stakes of disappointment are exceptionally high. Thusly, a few contemplations should be considered during the planning, arranging, and assembling measures. These include:

 FDA guidelines

As referenced above, FDA guidelines for neatness and sterility are a prime thought for clinical segments, both in the parts themselves and in the assembling cycle. Check that the material you select fulfills those guidelines and that your assembling accomplice can pass a review or other administrative prerequisite for clinical evaluation endorsement.

 ISO accreditation and consistency

ISO guidelines administer cycles and yields across various enterprises, including the clinical business. At any rate, an office delivering clinical parts should satisfy ISO guidelines with additional consistency to Class I, II, or III required, contingent upon the items being made.

Guidelines for biocompatibility, for example, ISO, may likewise be needed, notwithstanding other application-or item explicit norms. Be certain that you or your assembling accomplice knows about the principles identified with your application and that the office can meet and support consistency through review.

Material properties

The material picked for clinical parts and gadgets should show explicit actual properties to be appropriate for these applications. These include:

 Capacity to be disinfected 

This is a base prerequisite for any clinical segment, regardless of whether hardware lodging in an office or part of a gadget that collaborates directly with the human body. Materials should be foreign substances safe and ready to be sanitized to forestall any bad to those with whom they associate.

 The reasonableness for extraordinary conditions

Bio-inserts should have the option to deal with the troublesome climate of the human body, including solid activity and toughness when presented to warm, fluid, corrosives, vibration, and other development, and then some. Luckily, numerous plastics utilized in infusion shaping meet those prerequisites.


Easily delicate materials simply aren't down to earth in the clinical business, where they are as much peril as they are a bother. Make sure that your chosen material offers the break and breakage opposition essential in the clinical field.

Material Selection for Medical Device Injection Molding

 Since you comprehend the advantages of injection molding manufacturing for clinical segments and gadgets just as the particular prerequisites these segments should meet, we'll investigate a portion of the particular materials that fit the bill.

By large, plastics offer advantages over different materials and cycles in the regions of plan adaptability, in general cost-adequacy and speed of creation. Think about the accompanying materials for your undertaking:


For segments and parts where adaptability is a key prerequisite, silicone is regularly the material of decision. It offers uncommon sturdiness and biocompatibility and is practical at high volume creation runs. 


This is perhaps the most grounded material accessible, with high effect and vibration opposition. Polycarbonate is ideal for segments where permeability is an advantage since it very well may be made to be straightforward. It is additionally profoundly impervious to warmth and UV light.


With a high sub-atomic weight, polyethylene is undeniably appropriate for the surfaces of prosthetics and wearable gadgets because of its appearance, toughness, and relative perfection. It is high-strength and savvy yet can't be disinfected employing the autoclave.

You May Also Read: Mold on Plastic: Different Mold Removing Instruments


This material is ideal for parts that should be consistently cleaned through an autoclave, because of its high warmth obstruction. It additionally shows excellent radiation obstruction.

 With these tips close by, you'll have the option to settle on an educated choice about the material and cycle that is best for your clinical gadget or segment production. 

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5 Advantages of Outsourcing Your Plastic Injection Molding Service

5 Advantages of Outsourcing Your Plastic Injection Molding Service

Dec 20, 2020
By hqt

Why Should You Outsource Plastic Injection Molding Service?

Inhouse injection molding production doesn’t bring the promising benefits that we expect in terms of fast speed production and production cost. Plastic injection molding service is becoming trendy now. This is because plastic molding injection manufacturing is leading the world in terms of producing parts.

The industry evolves so much that it seems not an end in terms of innovation and versatility. It replaces the conventional method and modes of producing part as metals and non-metals. Now there is not a single industry that doesn’t get benefits from the injection molding parts.

You May Also Read: Mold on Plastic: Different Mold Removing Instruments

However, the decision-maker face issues regarding the installation of the production plant at home. Therefore, the decision-makers must not take bringing the production unit in-house lightly. This is the most pertinent decision. Though sometimes it takes time it worth it.

Plastic Injection Molding Service

Why Decision-Making is So Important?

Though there are many apparent benefits of bringing your injection molding production unit. This happens because there are many perceived benefits of installing in the house production unit.

These benefits attract decision-makers towards attractive propositions. These propositions are in terms of high-tech machinery and market competencies. Manufacturers, therefore, get an attraction who are looking for injection molding components and injection molding parts.

What’s So Different in Inhouse Production?

After careful and persistent efforts by many decision-makers, they find these perceived benefits as a hoax. Hence, the majority of decision-makers find these benefits hard to get.

Faster production speed and reduced reduction, therefore, seems unattainable. Furthermore, the benefits that seem easy in the initial face seems not fruition at all. These benefits thus never seem promising at all.

Why Outsourcing is a Promising Decision?

The alternative to in-house injection molding production is the outsourcing of the production by decision-makers. Therefore, Plastic injection molding service brings considerable benefits.

These benefits are more tangible in terms of fast production and cost-effective benefits. The achieved benefits help both in the short term and long-term operations.

Issues for Original Equipment Manufacturers:

As we know that the idea behind injection molding is simple. The process involves melting the plastic risen and injection into the desired molds. Furthermore, the step requires cooling and settling down of the risen until it gets a needed shape.

The process seems a simple phenomenon with lots of benefits. However, this requires OEMs to manage all the molding injection parts to perform the necessary actions. Therefore, in an attempt to this, they find inhouse production a costly matter.

This happens in terms of managing logistics and overall cost. This thus forces the OEMs to compromise on quality to meet their ends. So, despite compromising on the quality it is better to outsource plastic injection molding.

Advantages of Outsourcing Plastic Injection Molding Service:

There are several advantages you get after you hire your injection molding production to a third party. These benefits include:

Outsourcing the Infrastructure:

The initial investment for setting up a production unit requires a pot of money. This is because the size of the unit and machinery requires space and investment.

The huge cost of the machinery is due to the fact it is a constant running design. The build-up of machinery is set up against its regular running of millions of cycles a day. However, for manufacturers who want to run their operation for limited and smaller productions, it costs much.

The intermittent operation and the attached cost go way above the possible profit. On the contrary, outsourcing Plastic injection molding service brings significant benefits. This is because in outsourcing a manufacturer is making a profit on someone else’s revenue.

Therefore, this allows the OEMs to bring in home profit. OEMs can spend this revenue on marketing and innovation.

Professional Guarantee of Expertise:

For an OEM, the production of plastic injection molding parts may not be a core competency. This is because, for most of the manufacturers, production usually is also the phase of learning and training.

The job hence doesn’t become a core competency. Hence it becomes a learning and experimenting phase. This phase, therefore, brings liabilities. Consequently, this production phase requires double the revenue.

One part of the production phase and the other for bearing the training part. Rejection of production parts due to production errors thus directly hits your financial structure. This is just the one defect, not to mention the loss of time.

However, outsourcing Plastic injection molding service guarantees expert production by professional engineers and manufacturers. This saves a lot of cash, time, and burden in terms of learning, training, and experimenting.

Quality Production:

Injection molding production from experts thus brings quality in production. It doesn’t matter if someone is working in injection molding as a prototype partner or a producer.

The outsourcing of Plastic injection molding service hence by expertise ensures quality in all respects. Therefore, this encourages the OEMs to brood over outsourcing as worth an investment. Usually, almost all the major outsourcing units ensure quality production through various certifications.

These include ISO certification, FDA Certification, FFL Certification, ITAR Certification. Furthermore, the decoupled manufacturing process offer by outsourcing production provides quality production. The quality, therefore, retains in every step.

It starts from production to filling, packing, and holding each product using scientific methods. This however is not possible in in-house production. This is because in naïve production fill speed, temperature, and pressure effects quality in several ways.

Innovation in Design and Manufacturing:

Molding production doesn’t mean simply knowing how to produce parts or operating the machinery. Though the production of molding parts seems a simple phenomenon.

But upon due diligence, there are many ways by which the production saves you a pot of cash. It also permits you to be efficient in production and thus enhancing the quality. Therefore, the outsourcing of Plastic injection molding service hence guides and assists you better in producing quality parts.

This also ensures efficiency in design and manufacturing which is not possible with self-production. The effectiveness covers the following areas:

  • Designing and manufacturing affect the flow rate i.e., quality in terms of corners and uniformity in walls.
  • This step also improves the uniformity of cooling time.
  • It also helps in assisting material selection such as gussets and ribs instead of solid walls to increase strength and efficiency.

Cost Benefits:

All the above-mentioned advantages, in the end, affect the overall cost of the production. Directly or indirectly, it affects the most important consideration which is revenue.

This is because cost liabilities may come in many ways. This, therefore, affects the overall operations in terms of time, energy, production errors, and poor Return on investment. However, outsourcing can save you a lot of costs.

You May Also Read: The Key Considerations for Acquiring the Perfect Plastic Injection Molding Parts

Final Thoughts on Plastic Injection Molding Service

Hence, outsourcing injection molding manufacturing brings many advantages for OEMs. The outsourcing experts help OEMs in providing production benefits and a variety of services. This includes the manufacturing of prototypes and assisting in designing and manufacturing molds.

These benefits thus allow OEMs to achieve quality and focused services. This, eventually, will help OEMs in saving time and cost. Through this way, a manufacturer can do best for themselves.

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The Key Considerations for Acquiring the Perfect Plastic Injection Molding Parts

The Key Considerations for Acquiring the Perfect Plastic Injection Molding Parts

Dec 20, 2020
By hqt

Factors that Impact the Plastic Injection Molding Parts Manufacturing 

The key areas of focus in producing the complex and highly unusual perfect molding parts help the manufacturer to acquire them for several applications. For producing the perfect plastic injection molding parts, careful monitoring and designing are integral. This involves the inclusion and consideration of each step in a regular manner.

While purchasing the perfect injection molding parts, attention to certain details is necessary. These details hence help the purchaser for deciding long-term and stress-free management. some consideration is integral for the initiation of the process.

You May Also Read: Mold on Plastic: Different Mold Removing Instruments

However, others are important in the middle of acquiring the parts. However, the ultimate goal for this consideration is to make the customer happy.


Important considerations:

Several key considerations include:

plastic injection molding parts

Mold Design

The foremost consideration in injection molding the design of plastic injection molding parts. This component is hence integral for the production of high-quality materials. The injection molding, therefore, ensures that a good mold must possess the production of a large number of parts. The high production of parts hence must follow efficiency and consistency.

The high-quality mold ensures the production of parts in a large number. This happens in producing the parts for the first time. This hence eliminates the chances of wastage of time and material as well. However, this requires experience in producing custom parts even in a challenging environment.

This includes the inclusion of state-of-the-art technology that works on using CAD and CAM software. Also, the perfect parts of producing companies consider a consultation with their customer. This is essential for the consideration of each part; its dimension and the quality of the material.

These elements hence ensure that the product must be rigid and hard enough to withstand certain elements. These include the external and internal environmental elements as temperature, pressure, and material.

The manufacturer hence makes sure that important considerations in the mold must be kept in mind. This thus ensures that the injection process works correctly. The consideration of molds includes the thickness of the mold walls. It also considers rib designs, the boss designs, the transition of the corner. Furthermore, these elements also take into account the welding lines of the injection molds. The placement of gates and vents also counts in acquiring the perfect plastic injection molding parts. These elements combine works well to obtain the ideal custom molded parts. After the creation of the mold design, there runs a DFM (design manufacturability analysis). This analysis thus ensures the mold design delivers the expected results.

Designing Manufacturing Tools and Testing for Plastic Injection Molding Parts

For acquiring the perfect plastic injection molding parts, the presence of perfect mold is a compulsion. Without a perfect mold, there is no chance of getting the perfect part. This, therefore, requires the production of high-quality toolmaking consideration.

This step is important because the process of tool making is a time taking process. Therefore, by taking time, this must follow the optimum accuracy in production. This step hence is the most sustainable and substantial element in terms of investment for a manufacturing company.

However, it is not about the cost. But it is about the critical importance of tools in the success of the industry. Large injection molding projects ensure the follow up of high quality, long-lasting precision molds.

For a perfect tool making process, certain factors play an integral role that includes:

  • Firm designing and engineering of tools.
  • The injection mold possesses high-quality stainless-steel material that ensures optimal quality, performance, and durability during operation.
  • The use of high-quality and state of the art tools for manufacturing the precise machinery.
  • Manufacturing projects must follow strict quality standards and tight tolerance in products.

Features of Tool Designing

It is an understood phenomenon that in injection molding, the quality of mold plays a central role.  It takes a significant amount of investment for any manufacturing firm. Therefore, in an attempt to maximize the ROI in any injection molding project, there are certain elements. These features ensure the availability of maximum profit and yield. They are:

The core of the Metal:

For a perfect mold, the core of the metal must therefore be a stainless-steel material at the core. This is because this metal withstands, for centuries the high temperature and pressure. This happens in long production runs that however, still meets the close tolerance.

Number of Cavities:

The highest level of productivity is due to the presence of a high number of cavities in the mold. This means that a high cavity mold product possesses a highly complex matter. The maximum number of cavities thus ensures the maximum productivity in injection molding.

The Mold Base:

 The base makes an integral element in the injection molding. The unit base holds all the major components of the injection mold. This includes cavities of the mold, insert elements, and basic components together.

It also depends upon the size as well as the type of base. Thus, generally, stainless-steel is ideal for producing base. This makes the base capable of making a necessary level of customization.

Machine Design:

This includes the careful customization of molds in the project. This requires careful consideration of the placement of cores, cooling lines, ejectors, cavities, and other such components.

The complexity of the Parts:

For determining the cost of the mold, it is pertinent to consider how complex the mold is. the complexity covers every aspect from the surface to the final part. This also includes the number of cuts and undercuts it requires.

Selection of the Plastic Resin

For acquiring the best quality plastic injection molding parts, the selection of the right material as the resin is critical. It ensures the overall success of the molding process. For this purpose, science makes the selection easier.

The development of polymer science makes it easy for the manufacturer to have a comprehensive assortment. This means that there are a wide variety and choice of selection of resins. This variety allows the manufacturer to feel at ease while choosing the desired quality.

Also, it makes it easier for them to select and alter the strength, and durability of the plastic parts. This is because for each type of resin there are several associated applications.

Production and Quality:

After the selection of molds and resin, next comes the production of plastic injection molding parts. There are several cutting-edge pressers in injection molding.

These edges possess and characterize the variable capabilities and options. The use of the machines surely depends upon the size of the mold. This also takes into account the number of cavities as well as the selected type of resin.

However, some advanced injection molding production units takes special consideration. At this level, they run the sample runs. This sample run ensures the absence of any kind of risk or defects.

You May Also Read: A Comprehensive Guide on Precision Molded Plastics

Final Thoughts:

These key elements are integral and critical for obtaining the perfect injection molding parts. The advanced production units take special care of these features.

This is to make sure that the customer must have the access to the right quality perfect plastic parts. The unit carefully examines these points for successful delivery to customers for every order and every job.

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Mold on Plastic: Different Mold Removing Instruments

Mold on Plastic: Different Mold Removing Instruments

Dec 19, 2020
By hqt

Mold on Plastic Prevention and Removal

Plastics are resilient, but mold on plastic is not too far behind. Mold on plastic only needs a handful of conditions to thrive. And once there, it will start digesting additives on the plastic and then get to consuming plastic resins thus effectively destroying your precious plastic belongings.

Moreover, mold is harmful to human health. It can lead to several allergic reactions and acute diseases. Therefore, people prefer getting mold remediation as soon as they start seeing symptoms of mold growth.

You May Also Read: A Comprehensive Guide on Precision Molded Plastics

In this article, we discuss some instruments that can prevent the growth of mold on plastic by tackling spores, (mold’s seeds) and some procedures that can help you remove mold.

Mold on Plastic

Mold on Plastic Removal and Prevention

The key to fighting mold on plastic is prevention. It is best if you take steps to never let it conquer your plastic in the first place. However, if the growth of mold on plastic does occur, there are ways to remove them.

But it can always come back if you do not take steps to nip the issue in the bud and get rid of the root causes of mold. Below we discuss some effective equipment that commercial mold remediation services use for the removal of mold and for ensuring that it doesn’t grow back.

Mold on Plastic Prevention

You can prevent the growth of mold on plastics by ensuring that the plastics are kept in well-ventilated rooms that are not humid and ensure that the temperatures do not become habitable for its growth.

moreover, getting rid of spores is imperative because unless you don't get rid of spores, they will settle back on the surface and trigger mold growth.

Air Particle Counter

Mold, once grows, does not only stick to the surface it occupies. It reproduces by generating microparticles called spores. These spores are air-borne and can travel wherever the wind blows and the air goes.

So, even if you remove the mold from the surface but don’t take care of the air-borne spores, they will settle back on plastics and trigger mold on plastic growth all over again. Therefore, to effectively take care of the mold problem, you must get rid of the spores as well.

But, how can one get rid of the spores if they are so tiny, almost invisible? Well, there are somethings that you don’t necessarily have to see to get rid of them.

An air particle counter is specifically designed to enumerate the number of contaminating particles in the air. In this way, you can use an air particle counter to estimate the concentration of contaminants in the air in the moldy area and prepare to attack not only mold but spores as well to make sure that it doesn’t grow back.

Negative Air Machine

A negative air machine is more of an anti-spore device rather than an anti-mold device. But, anti-spore translates into anti-mold, so it is just as effective.

As we said earlier, prevention is the key when fighting mold, and a negative air machine prevents the mold on plastic from growing back by filtering spores from the ambient air.

Negative air machine utilizes High-efficiency particulate air (HEPA) filters. HEPA filters are known to remove more than 99% of 0.3 micrometer-sized particles. A spore particle size ranges from 4-20 micrometer, thus a negative air machine with HEPA filters can very easily remove spores.

And once spores are removed, all your mold on plastic removal efforts turn fruitful because once removed and kept in a spore-free environment, mold will not grow back on plastic again.


We all have dehumidifiers, but we largely use them for air chilling. However, air dehumidifiers are also very effective in preventing the growth of mold on plastic. Because mold needs a warm and moist environment to grow. And air dehumidifiers work to remove moisture from the air by cooling it down.

Therefore, dehumidifiers by barring the environment from becoming habitable for the growth of mold on plastic, prove to be extremely effective in the prevention of mold buildup and ensure optimum human health.

Mold on Plastic
Dehumidifier with touch panel, humidity indicator, uv lamp, air ionizer, water container works by wet window in flat. Close up

Mold on Plastic Removal

Up till this point, we have been stressing mold prevention and discussing instruments to prevent mold on plastic growth or regrowth because prevention of mold is inherently removal of mold. However, in some cases, you simply cannot stop mold from growing on your plastic tools or furniture.

So, considering that mold has taken over your plastic commodities, we present you with some effective solutions for removing mold after it has grown.

Ozone Generators

The Ozone generators are one of the instruments you can use to get rid of mold on plastic. Ozone is a gas that contains 3 oxygen molecules. It has one oxygen molecule loosely bonded with the naturally occurring diatomic oxygen. When generators use ozone for mold removal, this loosely bonded molecule oxidizes the mold and decomposes it.

However, ozone is not only effective for removing mold, it can kill you as well. Thus, ozone is only used in sealed places to prevent human casualties and fatalities.

Hydroxyl Radicals Generators

Hydroxyl is an unstable compound that also works by oxidizing and stabilizing mold thus causing it to decompose and die. Furthermore, it is not lethal for humans like ozone is. So you can use a hydroxyl generator for removing mold on plastic without having to seal your home or office.

However, you must ensure that your hydroxyl generator is only producing hydroxyl as some generators while producing hydroxyl also generate ozone in minute quantities. And ozone, even in minute quantities is harmful.

Hydrogen Peroxide Spray

Hydrogen peroxide is an effective chemical for removing mold on plastic. It does not only remove mold but also disinfects plastics and kills any viruses and bacteria that may be present on them.

All you have to do to kill mold on plastic is to use a 3% hydrogen peroxide solution. Pour the chemical disinfectant into a spray bottle and saturate the moldy area with it. Leave the plastic piece saturated with it for ten to fifteen minutes and scrub the plastic clean after it.

Make sure you don’t use a solution that’s more than 10% concentrated. Also, keep in mind that H2O2 may have a bleaching effect so you may want to keep it away from your plastics if you like their color.

You May Also Read: How to Make Plastic Molds Process Efficient using ERP System?


Mold is a type of fungus. Warm temperature and humid environment make for the best habitat for mold on plastic to grow. You must prevent mold on plastics to grow or remove them as soon as you can because they may have adverse health effects.

No matter how many times you remove mold on plastic, if you do not get rid of spores, mold will always come back. So the most efficient mold on plastic removal procedure is to take care of spores. Several devices determine the number of airborne spores and filter them out of air.

To remove mold on plastics you have several options. You can either use industrial-scale ozone or hydroxyl generators or you can just turn to your kitchen cabinet and remove the mold on plastics using chemicals like hydrogen peroxide, vinegar, or even baking soda solution.

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A Comprehensive Guide on Precision Molded Plastics

A Comprehensive Guide on Precision Molded Plastics

Dec 19, 2020
By hqt

Everything That You Need To Know About Precision Molded Plastics

As precision molding is expensive and sophisticated, hence, the process is favorable only for the production of complex, small, and infrequent objects. Precision molded plastics are the latest technology for producing plastic parts in the world. As the process involves precision, that ultimately demands sophistication in the process. This characteristic hence demands the process to be expensive.

Therefore, it is not advisable for the production of whole plastic products. Conversely, the process is economical only for the production of small and complex parts. This happens only when there is a need for unusual precision in the development of the product.

You May Also Read: How to Make Plastic Molds Process Efficient using ERP System?

Therefore, being a complex and precise process, it involves the inclusion of highly technical molds. Consequently, the technical molds hence run only of highly technical precision machines.

Since it differs from conventional molding machines to a greater extent. The process develops highly complex and geometrical parts or products. The precision parts replace the high precise metal in industries.

precision molded plastics

How does Precision Molding work?

The world is becoming a complex web of objects that we use daily. Some of these products are highly complex and detailed objects. With the growth in industry and precision molded plastics, the world is also getting familiar with precise shapes.

Now there is a great demand for precise plastic parts that form the majority of the industries. Plastic molds are required in industries of specific shapes that are more convenient and economic than metal. For that reason, precision molding is an apple of the eye for many industries.

This includes the Automotive Sector, the Pharmaceutical industry, Medical Supplies, Information and Business Technology, and alike.

What is CNC Machining?

The precision molded plastics involves the automated production of plastic parts. This happens only with the use of CNC machines. Also called the computer numeric control machines as CNC milling. CNC is a process that allows the automation of the process and tools by using precision programmed software. The CNC machining system comes to the surface in the 1960s. However, the process is still taking the lead even today.

CNC machining is the most preferable method of plastic production. This is because the process allows the production of highly complex and detailed objects with high accuracy. Tools and machines like lathes, grinder, mills, and router are the components that are manageable through the CNC system. The making of molded plastic by CNC system into complex geometric shapes is known as Polymer Optics.

Automatic Potential Process:

The precision molded plastics is the process that is famous for its potential for being an automated process. This means that the process is an automatic process that requires complete computer functioning aspects. Hence, every aspect of the process runs through an automated handling system.

This, therefore, involves fluid and customization of the manufacturing cells and units. Furthermore, the process of precision molding and the related design engineering demand functioning through cells. These cells hence are the backbone of the process and also serve in molding, coating, testing, and packaging.

However, all this process never uses a single manual procedure. Everything follows the automated process line up. Also, the mechanical aspects of the process are easy and customizable. This means that the installation and replacement of any mechanical component of the system is a handy task. This involves mounting lenses, snappers, and other fixtures.

Specification of the Surface:

Despite the number of advantages and edges in the production of precision molded plastics. However, some elements make the process to stay limited to an extent. There is a certain number of limitations that limit the process due to manufacturing technology. The precision molding process works at a certain length. This means that the polymer optical components work only at the diameter from 1mm to 100mm. Similarly, the polymer optical component allows the lens thickness of 1mm to 30mm. Furthermore, the thickness ratio is 1:1 to 5:1.

Important Considerations:

While opting for the system of precision of molding for your production system there are certain considerations. These include the points you must keep and understand at the first hand. These are areas of precision that can help the manufacturer to be accurate and professional.

Tolerance Issue:

As mentioned earlier that precision molded plastics doesn’t take into account the whole production of the plastic parts. However, the process only accommodates the production of units of the parts that require scientific molding techniques.

This means that the process is favorable where there requires the production of high tolerant parts. Since high tolerant parts mean that the production requires the manufacturing of parts in a precise and accurate manner.

The absence of which will cause the product or parts to break and fracture in the molder. Furthermore, sometimes the breaking of certain parts of the machinery while CNC machines still move brings danger.

Material Issues:

The conventional molding injection requires the use of specific materials for production. However, in precision molding plastic, the use of raw or production material differs from conventional molding production.

This involves taking care of the production phase inefficient manner. Therefore, sometimes what happens that in the production phase, the product happens to face shrinkage. For the products in precision molding that bear high shrinkage capacity.

The high shrinking capacity of material causes the shrinking of the product. Hence this makes the product more fragile and therefore ruins the whole product. For this purpose, in precision molding, the use of plastic resin ensures the production of high-quality plastics.

Technique Issues:

For high production phases, where the manufacturer requires to produce material in large quantity, the process requires precision and accuracy. This thus asks the manufacturer to produce identical items with the same accuracy and manner.

If the production of the product doesn’t produce identical items, thus precision molding will not be accurate. This mostly happens in conventional molding processes, However, in precision injection molding, there is no change in the product design. Furthermore, the precision molding process is a slow and steady phenomenon. This thus requires time, focus, and energy.

However, some companies offer rapid molding tooling. But this is not a standard process. The main idea behind the precise injection molding is that it must cover all the basic requirements.

Application of the Precision Molding Process:

The precision molding process involves the production of high-quality material. Precision molding helps in the making of complex plastic parts for various industries. However, the process revolutionizes the production and development of lenses. These lenses are beneficial for various applications. This is because the process involves the production of glass lenses that are much cheaper and tougher than conventional.

Precision molding largely, thus, involves the production of glass material. This includes lenses which are highly delicate materials. It is a harder and expensive product.  However, plastic optics using precision molding changes the world of plastic upside down.

You May Also Read: Plastic Molding in China 4 Injection Molding Defects and Causes

Final Thoughts on Precision Molded Plastics

Precision molded plastics are famous and desirable for the production of complex mass plastic. It involves the production of precise material that is spherical, aspherical, freeform, and diffractive in shapes. This also involves the production of other such types of materials that require high-quality material. This is because it involves perfect optical finishing on the product.

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How to Make Plastic Molds Process Efficient using ERP System?

How to Make Plastic Molds Process Efficient using ERP System?

Dec 19, 2020
By hqt

How to Make Plastic Molds Using EPR Systems?

Many small and medium manufacturing units use ERP software for data-management to optimize the output as well as to increase the industrial yield. ERP Software helps a manufacturer in solving the issues of how to make plastic molds in an organized way. Though at first the process of injection molding seems a trivial phenomenon.

However, the process is not as simple and straightforward as it pageants. You may think of it as a project that involves just inserting the plastic risen into molds. It is more than that. The process involves other than popping out the final product and repeating the whole process.

You May Also Read: Plastic Molding in China 4 Injection Molding Defects and Causes

The process, prima facie, looks like a simple method with not much organization. This happens only before you start running the process yourself. However, for large-scale production, the ERP software is integral to injection molding. This is because ERP helps the manufacturer in managing the production assets as well as to increase the yield.

The software also helps in tracking the inventory and ensuring quality control as well.

how to make plastic molds

What is ERP Software System?

Before going into the details of how to make plastic molds using ERP, it is imperative to know what ERP. ERP Stands for Enterprise Resource Planning software that helps in managing the managerial issues of production.

Hence it manages and tracks the inventory records, quality control and also schedules the production phases. With the rise in its demand, the software also happens to grow in many versions. Therefore, nowadays, ERP offers multiple versions. It is available in the cloud system as well as IOS/Android version.

This veracity thus helps the management and staff to monitor the system across the organization. However, choosing ERP software for your manufacturing unit must ensure some pertinent elements. The foremost thing to make sure of is that your software must be flexible and dynamic.

Therefore, it must take into account the futuristic perspective also. It should not rather work only for an immediate future.

Types of ERP software in Injection Molding:

Well, it depends upon the size of the operation. ERP offers three varieties of software for varying sizes of industrial operations. Some of which are:

  • WinMan ERP Solution: WinMan ERP software largely benefits the large industrial production units of injection molding. WinMan offers an enterprise solution to large companies. This software allows a variety of services starting from managing supply chain operations to managing warehouses.
  • Exact Max ERP Solution: Exact Max is an ideal system of operation for SMEs or small growing industrial units. The software solution provides multiple benefits with smart integration. QuickBooks is one of the services of Exact Max. This ensures the streamlining of every industrial process.
  • Visibility ERP Solution: The following is the most complex system of ERP software. This should be an ideal choice for complex injection molding units. This is because it not offers resource planning but also helps in futuristic perspectives.

How ERP helps in plastic injection molding:

Now, let’s look at how to make plastic molds by ERP software. The primary concern in plastic injection molding the management of the inventory. ERP, therefore, helps in managing the inventory from initiation to the termination of the process. The software hence doesn’t only help in dealing with production schedule tasks.

It will therefore also take into account the process of waste management and production efficiency. The ERP also guides the manufacturers in managing and tracking the consumption of the raw material.

This thus benefits the manufacturers in reducing the left it scraps after the production cycle. This way manufacturers can also make sure to reuse the waste material in the next phase.

Quality Control:

Furthermore, the injection molding industry now grows to one of the most innovative industries in the world. This hence asks for monitoring the quality control process for each operation.

The quality operation helps in following the SOPs of operations. As in the case of medical technology, the molding parts must follow the hygiene patterns. To make sure the equipment and instrument must follow the compliant. Quality control ensures the follow up of strict routine on every cost.

Therefore, ERP software helps in maintaining the SOPs by centralizing the process. This centralization guarantees robust management.

Inventory Management:

Last but not the least, ERP software guides the management on how to increase the production yield and productivity. The software thus manages the vast inventory of the molding material that the manufacturers will inevitably use.

What happens most of the time is that the inventory of prototypes usually goes unmanaged. So, to manage the catalog and avoid the iterations of prototype ERP plays an important task. These steps using ERP proves the systematic structure of the company as a professional.

ERP: A complete Solution Guide for Your Injection Molding

ERP software is a complete guide to how to make plastic molds innovative and productive. The molding injection industry offers a wide range of plastic products and parts. These parts serve a variety of industries and services.

With varying purposes, variety, and uses, molding injection possesses a variety of production processes. The variety of operations and processes thus calls for a robust system of software infrastructure.

The software hence helps all the injection molding units to manage their scheduling and capacity building. The number of benefits that ERP offers are encouraging and productive.

Digitalization of Industrial Process:

Digital technology in any form revolves and shapes our lives every day. Not only personal life but also the business structure across the globe turns digital in every aspect. In this era, just participating in digitalization is not a solution for survival.

However, Expanding and reshaping it is the key to success. The real change and development happen when we manage the business and industrial operations using the software.

The ERP software consequently paves way for the industry to act as more organized in Industry 4.0 era. This makes them more competitive and permits them of real-time view o their production, management, and operations.

Cloud ERP is the Simplicity of Digital Business Operations:

But the question arises as to how to make plastic molds using ERP as a simple task. Usually, using and managing software in such a large industrial unit is not child’s play. It often is the case that both SMEs and large-scale industrial units work on their information system.

However, this system asks for more effort and hard work to manage the digital task. This requires a complete infrastructure, database, load of hardware units, and servers.

Nevertheless, for Injection molding, ERP cloud operation makes this process simpler. ERP easily connects its data with Microsoft Cloud Technologies. This hence saves a chunk of cash for setting a separate system as a software house.

You May Also Read: Plastic Molding Processing: Industries and Applications

Final Thoughts

ERP hence acts as the backbone of the injection molding manufacturing. Over time, the software also transforms to offer and handle complex matters.

Hence from molding to compounding and thus thermoforming, ERP is here to guide industries in facing challenges. Therefore, on-time delivery, accuracy, and quality is no more a challenge in injection molding

For More Information Contact Us Today!

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Plastic Molding in China 4 Injection Molding Defects and Causes

Plastic Molding in China 4 Injection Molding Defects and Causes

Dec 13, 2020
By hqt

 Plastic Molding for in China -- Defects and Causes

Plastic molding for in China gets fame in the international plastic market as the majority of our daily use items or their parts are made using injection molding

Chinese Plastic Molding revolutionizes the plastic industry across the globe. We now surround the majority of the items in our daily usage that are injection molding products. The best example of injection molding products is the one we usually hold in our hands. Laptops and our mobile devices make the most of it. Furthermore, injection molding in China comprises storage boxes, toys, bags, plastic utensils, cutlery items, and food containers. Many stationary items make the major section of injection molding parts. Indeed, plastic becomes the most popular method and product.

You May Also Read: Plastic Molding Processing: Industries and Applications

This is because plastic production revolutionizes its methods of production in the past few years. Since the device offers durability and reliability much more than metal, therefore users like it. Additionally, we can mold injection plastic into any shape and design. This customized nature of injection plastic is famous to create any item of choice.

plastic molding for in china

Benefits of Using Plastic Molding for in China

There are many advantages and feasibilities of using plastic injection molding parts and products. plastic molding in China offers a variety of benefits that include:

  • State of the art Molding machinery: The injection molding in china guarantees innovation with quality products. It makes the heart of the injection molding in China. The industry uses plastic molding products, mold, and die casting which are world-class and highly competitive products. 3D tool design technology ensures efficiency and reduces mistakes.
  • Assurance of Quality Products: Plastic molding for in China offers a wide range of products with a full quality guarantee. The whole process of production is under constant monitoring to assess any possible error. The mold and molding material are checked under constant monitoring to mitigate any mistake and to ensure high-quality deliverance to customers.

4 Injection Molding Defects and Causes:

Despite the number of benefits that Plastic molding in China offers, there are several common defects. There are 4 manor defects and we discuss them from here:

Many defects are common in plastic molding in China. This happens due to many technical reasons. However, most of the defects and their causes are due to the defects in the injection mold process. Therefore, here are the 4 major defects and their causes.

Flow Marks and Flow Line

One of the most common defects in plastic molding for in China is flow marks or flow lines.  Flow marks and flow lines are the most common defects that we find in the injection molding process. Flow lines mean there are some lines or waves that are apparent on the surface. Consequently, these marks make a streak of line. Thus, this usually discolors the defected section in comparison with the rest. Therefore, the surrounding area hence becomes more distinguishable because of the color difference.

This defect is common on the gate point of the mold. These gate points or gate locations are the places where molten plastic enters the mold. However, these marks or lines do not affect the final finished product. Furthermore, the lines do not affect the functionality of the final product. The problem persists with the visual appearance of the product. It looks unpleasant and makes the product look least attractive which requires it to be aesthetically pleasing.


Plastic molding parts go through many phases and changes in the process. The last step is the cooling rate process, where the product goes through the cooling process. Hence, it passes the heated barrel and thus molds and solidifies itself in the end.

These defects usually happen when the thickness of the walls of the mold is not uniform. The variant thickness thus allows the molten material to cool at different speeds. Furthermore, another cause of the flow line is the slow injection process and low-pressure injection. This happens when the molding plastic cools down so quickly that its leaves pattern marks and lines.

Burns Marks in Plastic Molding in China:

Burn marks in plastic molding in China are the black colored marks on the edge of the final product. The marks however can also appear on the edge in the form of rust color. The marks furthermore may appear on the surface of the molded parts.

These marks are therefore not the actual part of the final product. The marks hence are harmless for the final material; However, the damage may occur if the marks burn the actual product. The burn to the final material therefore degrades the plastic.


 The most common cause of these defects is overheating. The burn marks appear when the trapped air bubbles in the molds get overheat. Furthermore, the molten risen in the molds also get overheating and thus cause burn marks. All this happens in the mold cavity during the processing time. The main cause of these issues is thus the overheating of the molded parts. It also happens when a process involves high injection speed.

Warping Defects in Plastic Molding in China:

Warping is an uneven distribution of mass or shape of the final product. In the plastic injection molding process, warping occurs when the final product cools down and solidifies unevenly. During the process of plastic production, this uneven cooling and solidification make the process defective. This makes the final product a disfigured one. The final compression product contains bends and twists.


There are many reasons for the final product to be defective in shape and form. The most common cause is the premature cooling of the raw material. Furthermore, the uneven cooling rate process causes the uneven distribution of mass and material. However, this also when there is an overheating in the process. Also, when the walls of the molds are uneven this causes the product to have warps.  

Air Pockets and Vacuum Voids:

Air Pockets in plastic molding in China are the plastic bubbles. This bubble hence usually gets trapped in the final product. The finished product thus remains unfinished. But this defect is not the major default in the final product. However, the presence of this defect in the product may cause the weakening of the final items. This happens during the product development phase.


The happens when there is a low volume production in injection molding. The vacuum voids appear in the final product when there is insufficient pressure in the mold. Low pressure happens due to low production. Therefore, in the final product, the air bubbles remain. The presence of the vacuum voids thus appears when the plastic cools down and solidifies having an air bubble in it.

You May Also Read: The Role of Thermoplastics in Custom Plastic Molding

Final Thoughts:

As we see there are many defects in plastic molding for in China. This happens due to the faults in the initial process of the molding machines. This also happens when the tool used is defective. Furthermore, the defects appear when the raw material used in the process is defectives. To avoid this, the design of the mold should be proper and it should properly finish the final product.

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Plastic Molding Processing: Industries and Applications

Plastic Molding Processing: Industries and Applications

Dec 12, 2020
By hqt

Plastic Molding Processing using injection technology enables the fast production of plastic parts in large quantities in a very short period of time.

The basic idea behind plastic molding processing is the use of molten plastic resin in an injection molding machine. The manufacturer, thus, injects the molten plastic into metal molds using high pressure. The next step is the cooling rate process. This step involves the cooling of molten material in molds using two standard methods. Either, air-cooling or chemical cooling methods are used for cooling rate. However, after cooling, the molds are set to retain their firm state. Hence the last step is opening the valves and releasing the final product.

You May Also Read: The Role of Thermoplastics in Custom Plastic Molding

The final plastic product, consequently, that comes out using this technique is reliable, durable, and sustainable. Plastic parts attain the fixed hard form that works for a long time. Therefore, manufacturing machines and their parts producing molding plastic must be of high quality. It should meet the quality standards to produce quality parts. Hence, the applications of Plastic injection molding are widening with each day and is also gaining popularity in other industries.

Custom plastic molding

Applications of Plastic Injection Molding Processing:

There are a wide variety of applications of plastic injection molding in the world. Due to the fast processing and durability of plastic, injection molding has a wide range of applications. Plastic molding is also now a certified method of production holding ISO 9001 certification.

The process offers high-quality customized plastic parts. Plastic production using injection molding helps in producing a large quantity of plastic at a very low cost. Following are the industries and application of plastic injection molding:

Construction, Building, and Developers:

Manufacturing plastic using plastic molding processing is a contemporary method of production. Being a contemporary method of production, the process is versatile. It is an evolving method of production that has enough potential in term of R&D.

Therefore, the process that encompasses a wide range of industrial applications. Amongst many industries, building and construction are one of the major stakeholders. The method is gaining valuable importance in the construction industry.

Also, the process holds many characteristics that enable it to be significant in the construction industry. These characteristics make the process suitable for construction application that includes:

  • Production of high stability construction material
  • Producing durable parts that retain stability when exposed to harsh conditions
  • Replaces metal and wood parts in term of cost
  • Energy-efficient material
  • The parts are recyclable materials
  • Comparatively light in weight
  • Wide range of design and finish

Manufacturers are focusing and working hard to produce innovative products of daily use. The products are associated with daily construction use such as hand tools and other accessories.

Food and Beverages:

Plastic molding processing engulfs every part of our lives. Thus, there is no single section in our life which doesn’t contain the plastic product. From the clothes, we wear to the gadgets we use and the food we eat all contain plastic. The plastic utensils comprise the major section of our food and beverages. However, producing plastic parts used for food and beverages must follow health and safety standards. The health authorities and international safety certification ensure the follow up of safety procedures. Amongst the authorities, FDA and GMA are the two major international board of certification. The boards, thus, ensure safety, sanitation, and protection of parts as well as consumer well beings. Amongst the consumer line up, however, the children are the major stakeholders. Manufacturers use food-grade materials to produce plastic injection moldings for food and beverages. These injection moldings, therefore, are non-toxic and BPA free parts.

For food and beverages, the manufacturer must follow ISO, FDA, GMA, and HACCP safety certifications. These certificates guide the manufacturers to follow safety procedures in plastic parts. The safety guidelines ensure products that are resistant to chemicals, autoclavable materials, and UV resistant. The food and beverage parts and application include:

  • Overlaps of beverages
  • Components of conveyor systems
  • Components of the beverages filter system.
  • Containers used to store food and beverages
  • Components of equipment used for processing food and beverages

The modern plastic molding processing industry uses automated manufacturing plants. Also, these plants ensure high-quality molding production that is both cost and time-effective.

Medical and Pharmaceutical Industry:

Medical and pharma products are also associated with the health and safety of every individual. Hence, the meeting of standards procedure, and regulation is integral. Nonetheless, the standards in plastic molding processing start from the very first step of designing to the final step related to testing. Some of the manufacturers, therefore, across the globe at so transparent and honest that they allow live inspection.

This, consequently, permits the customers to go through the production phase from start to finish. Customers can get a walkthrough of their order to ensure quality standards in medical and pharma products. The molding process follows the FDA, ISO, and medical-grade certifications and guidelines in producing medical injection parts. Accordingly, the Benefits of using molding plastic in place of normal steel and other metal include:

  • Production of plastic resins: the product follow food and beverage grade standards with efficient physical and chemical properties. The product is prone to stay resistant to high temperature, pressure, and bears high tolerance.
  • Lightweight parts
  • High-quality products and high quantity products.
  • Flexible designs of superior quality
  • Less wastage of material cost and time.
  • Less risk to the patient’s life

Similarly, using plastic molding in the medical and pharmaceutical industry offers multiple advantages that include:

  • Use to produce medical diagnostic test kits for laboratory
  • Helps in the production of parts for surgical preparation
  • In dentistry for X-ray related components

Windows and Doors:

The plastic production using plastic molding processing involves the production of high-quality household items. The plastic industry is, thus, slowly overtaking the traditional industry of metal and wood for the production of household parts.

Now, the Plastic industry overtakes wooden and metal doors to plastic doors. Some of the latest examples of the plastic door are PVC and UPVC doors and windows. Also, they are more reliable and long-lasting than wood and other metals like aluminum. The parts are of high quality and low cost. The plastic doors and windows are:

  • Exceptional durability to weather change.
  • Stands resistant to the thermal changes
  • Wide range of materials UV inhibited, Polypropylene, Viny, UPVS, Nylon, etc.
  • Resistant to high corrosion of materials
  • Easy to install and is cost-effective

The parts for windows and doors contain:

  • Plugs for holes
  • Handle for windows and door
  • Assembly for window and door
  • Stoppers for door and window
  • Stops for vents and doors
  • Screen corner for window

You May Also Read: Factors that Impact the Plastic Corner Molding Process

Final Thoughts:

From the discussion above it can be concluded that plastic molding is bringing revolution to the modern world. There is not a single product in our life that we think and cannot produce. For example, buckles, pins, and bags to industrial machines and parts.

Every section and every age group is getting benefits from the plastic injection molding industry. However, not only the earth but the plastic industry enjoys a monopoly over space also. Many major components of satellite and space rockets are plastic products.

In order to learn more about our products and services, Contact Us Today!

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The Role of Thermoplastics in Custom Plastic Molding

The Role of Thermoplastics in Custom Plastic Molding

Dec 12, 2020
By hqt

Importance of Thermoplastics in Custom Plastic Molding 

Thermoplastic becomes a most common trend in custom plastic molding where heat allows it to act viscous to form the desired shape, which sustains upon cooling.

It is a usual case that in custom plastic molding, metals sometimes fail to retain the deflection and weight. This happens when the application demands a specification of material. Ultimately, thermoplastic is the material that provides a solution to this issue. This is because thermoplastic is the material that starts to melt upon heating. Therefore, thermoplastic is custom plastic molding is the common material. Therefore, to process the thermoplastic, Injection molding is the method.

You May Also Read: Factors that Impact the Plastic Corner Molding Process

However, apart from thermoplastic, there are several other resin materials for injection molding. Furthermore, the thermoplastic is not just a single material. It is a group that consequently comprises thousands of materials as thermoplastics. Nevertheless, to make custom plastic molding, knowledge, and identification of process and materials are important.

Consequently, making the right choice in selecting the right material and method is a hectic task. There are various roles and types that thermoplastic plays and offers.

Custom plastic molding

Types of Thermoplastic Resins:

There are thousands of resin products available for injection molding for custom plastic molding. But it remains a difficult task to even finalize the resin. Therefore, it becomes a hectic step in realizing which resin is perfect for which part. Hence, to understand which resin serve many applications is integral to its success.

Acrylonitrile Butadiene Styrene: Acrylonitrile Butadiene Styrene is also known as ABS plastic. ABS plastic is the most demandable plastic product by the majority of the consumers. This is because ABS plastic stands rigid and hard at low temperatures. The product is resistant to heat, pressure, abrasion, chemical, and offers tensile strength.

Acetal Copolymer Polyoxymethylene: This plastic remains stable at high temperatures and offers resistance to creep and moisture. Due to a low melting point, ACP plastics are easy to process parts. They also characterize remarkable resistance to fatigue, good tensile strength, and lubricity.

Acetal Homopolymer Polyoxymethylene: AHP thermoplastics feature high strength, stiffness, resilience, and high fatigue resistance of all the thermoplastics. These plastic products are prone to low moisture resistance along with high creep and abrasion resistance.

Acrylics: Acrylics share the majority of their properties in resemblance to glass. Acrylics are the glass replacements. As a substitute, acrylic offers a wide variety of applications. The Acrylic thermoplastics, therefore, represent a great variety in terms of durability, toughness, light control properties, and scratch less glass. It replaces the glass optics and thus offers decolorization properties with low haze and high strength.

Other Types of Thermoplastics:

Polycarbonate Thermoplastics: This range stays tough in the face of high temperature and pressure. The following plastic helps in making a wide range of applications and uses. This includes general purpose material with moderate properties. It also helps in making extrusion molding material with special and high-grade retardant properties. Furthermore, the product helps in making rust and contamination resistance products for the pharma and food industry.

Polystyrene Thermoplastics: Polystyrene is a low-cost thermoplastic material that sustains its credibility at low temperatures. In comparison, it offers low heat resistance as to other thermoplastic products. The product requires a low constant temperature of below 200-degree F. AT this temperature of the material can hold its integrity and stiffness. However, the product is easy to manufacture and offers a wide range of properties. This includes colorization, hardness, and clarity.

Advantages and Disadvantages of Thermoplastics:

The above properties of each thermoplastic material, therefore, helps in recognizing its best use in applications. Hence, users must know the value, grade, and properties of each classification according to their requirements. Furthermore, such a broad variety of thermoplastics for custom plastic molding offer multiple advantages and disadvantages. These advantages and disadvantages depending upon each application of its use. However, owing to some general use, there are many general pros and cons which are common for all.

  • Thermoplastics are energy efficient in terms of processing.
  • Offer a wide range of properties beneficial for user and manufacturer.
  • Quality production at a larger scale at very cost-effective rates.
  • Many types of thermoplastic can replace metal parts that help in reducing the overall weight of the product.
  • Even if in comparison to metal, thermoplastics offer considerably higher fatigue resistance.
  • These plastics can deflect much better than most metals even without deforming.

These are some of the common advantages of thermoplastics in custom plastic molding. Such properties and advantages consequently enhance the user of these thermoplastics for a wide range of applications. Nonetheless, there are some disadvantages also that hence are affecting the quality and grade of thermoplastic materials.

  • Thermoplastics are more vulnerable to direct sunlight. The product is prone to degradation when comes in contact with Ultraviolet radiation exposure.
  • Thermoplastics are strong and resistant to many conditions and stimuli. However, not all of them are resistant to Polar, organic, and hydrocarbon solvents.
  • But some thermoplastics face creeping issues under long term usage.
  • Thermoplastics can sometimes get fractured rather than getting deformed in high pressure and stress.

Certainly, these disadvantages, just like advantages are not common for all the thermoplastics materials. Therefore, the wide variety of benefits and disadvantages makes the selection of the right material for the right product a difficult task.

Custom plastic molding

Common Applications of Thermoplastics Materials:

With a wide variety of properties, thermoplastics offer extremely important features and applications. Thermoplastics in custom plastic molding play a major role in almost every industry. Consequently, it is difficult to list specific uses for the specific industry. However, it is considerably easier for us to list down the common applications. Some of the common uses are:

  • ABS Thermoplastic: For making safety hats, LEGO toy bricks, Whitewater canoes, and some musical instruments.
  • Acrylic Thermoplastics: for making Plexiglasses, Perspex and Lucite.
  • Polyester Thermoplastics: For making synthetic yarn, synthetic ropes, industrial conveyor belts, synthetic clothing, blankets and furniture, and computer mouse pads.
  • Polypropylene Thermoplastics: helps in making laboratory equipment and instruments, carpets, synthetic textiles, packing material, and labeling materials.
  • Polystyrene Thermoplastics: For making foam cups and porous glasses, smoke alarming house, science models, disposable plates, cutlery and spoons, and DVD cases.
  • Nylon Thermoplastics: For making fishing line and nylon threads, musical strings and instruments, and synthetic fabric.
  • Cellulose Acetate Thermoplastics: For making cigarettes filters, deck cards, spectacle frames, and photography adhesives.

You May Also Read: Plastic Molding Manufacturer: A Guide to Cooling Rate Process

Final Thoughts on Custom Plastic Molding

Custom Plastic Molding using thermoplastic products play a major role in the injection molding industry. However, the custom molding in injection plastic demands high tolerance and repeatability. This, therefore, requires high engineering expertise. Manufacturers can only achieve expertise when they are keen on understanding technical and engineering concepts. Consequently, this allows them to be able to manage and practice what and how each type they must use or not. This is because this custom plastic molding carries a wide range of industrial applications. with ever-increasing demand custom molding demands precision production, high volume demand but at a lower and competitive cost.  

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Factors that Impact the Plastic Corner Molding Process

Factors that Impact the Plastic Corner Molding Process

Dec 11, 2020
By hqt

Plastic Corner Molding Process And Factors Affecting The Process

Plastic corner molding is an extensively used technique to form a great variety of complicated and straightforward products. It requires raw material that is mostly plastic and molds it into the desired size and shape. It can manufacture open containers like buckets and everyday items such as combs, medical products, and toothbrushes. The molding process forms unique finished products as plastic housings and corners. Moreover, it can fabricate small toys and medical devices also. 

Several factors impact the corner molding process and can affect the quality of the finished product. This article discusses the plastic corner molding process, its steps, and the factors that impact it.

You May Also Read: Plastic Molding Manufacturer: A Guide to Cooling Rate Process

Plastic Corner Molding

Plastic corner molding is a unique and widely used technique to mold various materials in different shapes and sizes. These materials can be metals, glass, and mostly thermosetting and thermoplastics. The raw material gets into the molding machine, where it gets heated and melts. There is a screw that ensures perfect mixing of the molten material and other utilities like-colored resins. The screw thus injects the perfectly mixed material through a nozzle into the mold cavity where it gets solidify, and there is an ejector that ejects the finished product.   

The corner molding technology extensively produces a large variety of products. The corner molding process is an all-rounder in creating great finished products from aircraft and airplane parts to the mobile casing and hair combs.  

Plastic Corner Molding

Process Involved In Corner Molding

The molding process involves several processes that include clamping, injection, solidifying, and ejection.


The clamping unit holds the mold together to give the molten material the desired shape and size. The process can produce a colossal amount of finished products in one cycle.


The screw injects the molten material into the mold cavity. The material inside the mold experiences shrinkage, which can affect the size of the product. More molten material should be injected immediately after the product gets shrink to compensate for the loss of escaped gases.


  The molten material solidifies inside the cavity and attains the shape of the mold.


Finally, the ejector ejects the finished product. The molding process produces a large number of products in one cycle. Once the ejector ejects one part, the cycle repeats the same process once again.

Factors Affecting The Plastic Corner Molding

Several factors affect the plastic corner molding process, like the temperature, pressure, and time associated with different steps.

Impact Of Temperature On Plastic Corner Molding Process

The different temperatures involved in the injection molding are the barrel, nozzle, and mold temperatures. These temperatures have a significant impact on the plastic corner molding process.

Barrel Temperature

The barrel supports a rotating screw that is responsible for melting the plastic. It takes heat from an electrical source. Its temperature needs serious consideration. From melting the plastic to injecting it into the mold, the temperature needs careful consideration. The temperature should not be higher than the decomposition temperature of the plastic. It should also not be lower than the optimum melting temperature to prevent the nonuniform melting and lump formation.

Nozzle Temperature

The nozzle in plastic corner molding is responsible for letting the flow of molten plastic into the molds. The temperature in this zone is lower than the barrel temperature. The high-temperature molten plastic cools slightly before going to the solidifying area. However, the temperature should not be too low to prevent molten plastic condensation as it can block the flow and cause cavitation, i.e., vacuum formation.

Mold Temperature

Mold temperature has a significant impact on the properties of the finished product. The solidification of the product depends on the mold temperature. The lower the temperature, the more quickly the product cools down. The optimum mold temperature depends on the product's size and structure, barrel or the melt temperature, injection pressure, and speed.

Impact Of Pressure On The Plastic Corner Molding Process

Pressure significantly impacts the plastic corner molding process as it controls the key processes from injection to extrusion.

Injection Pressure

Injection pressure is responsible for forcing the molten plastic into the mold cavity. Its value is not constant and varies with the size and shape of the finished product. It must be capable enough to push 95% of the molten plastic into the cavity. The optimum value of injection pressure varies from 70 to 112 MPa. High injection pressure helps to minimize the shrinkage of the product.

Holding Pressure

The holding pressure is responsible for filling the remaining 5% of the mold cavity. Once the injection pressure fills the mold cavity, trapped gases find the vents to escape the cavity, and the remaining resins start acquiring shape. So the holding pressure then pushes the molten plastic to compensate for the shrinkage that can affect the final product's size. Moreover, holding pressure must fill the cavity before the product freezes off. However, high holding pressure can result in product deformation.

Back Pressure

As the reciprocating screw moves the molten product in a forward direction, back pressure plays its role to resist the movement of the screw. Backpressure maintains the speed of the screw, thus enhancing the melting of plastic and enhanced mixing in case of colored resins. This pressure also ensures the escape of trapped gases and helps in achieving excellent product density. However, back pressure increases stress on the system, so it must be much lower than the injection pressure.   

Injection Speed

Injection speed is the speed with which the screw moves to push the molten plastic into the cavity. It affects the heating of the plastic. The plastic corner molding requires an optimum injection rate to enhance the melting, mixing, and escape of any trapped gas.  

Cooling Rate

The cooling rate is the last factor involved in the plastic corner molding process. It is the speed with which the temperature of the product drops in the mold. Once the temperature drop becomes constant, the extruder allows the product to leave the mold. The injection pressure and temperature significantly impact the cooling rate. The shrinkage can cause contraction, thus affect the size of the product. So to avoid shrinkage, the cooling rate needs to be controlled.

You May Also Read: Plastic Molding Design: Stress Cracks and Role of Molecular Organiza..


To sum up the discussion, the plastic corner molding process is unique as it can manufacture several products simultaneously. The addition of colored resins and molten raw plastic aids the production of a finished product.

There are almost four steps involved in the corner molding process. These four steps work based on temperature, pressure, cooling rate, and injection speed. These factors, if not controlled carefully, can impact the process. So the need for serious consideration and optimum values of these factors can help enhance the quality of the finished product.

So, For More Information, Contact Us Today!

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