Explore Packson's Injection Molding Services

ISO Class 8 Clean Room
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Quality Control
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Low & High Volume Manufacturing
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Competitive Price
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Reliability and Stability

With more than 20 years experience of injection molding industry and equipped with ISO Class 8 Clean Room, as the injection moulding suppliers , we offer Medical Contract Plastic & Rubber Injection Molding, Custom Injection Molding, and Over Molding by more than 40 injection machines that range from 60 to 1000 tons of clamping pressure and are keep growing every day.

Packson is an ISO 13485 and ISO 9001 certified medical china injection moulding company. As our competition in the injection molding industry is far ahead, being a cutting-edge China injection molding company, we specialize in plastic injection molding and contract manufacturing for OEMs like BD, Lear, and Wondfo. Except for Medical, we also provide injection molding services for different industries including Automotive, Airplane Components, Electronic Products, Consumer Products, Packaging, Toys, Construction, and Agriculture.

Not all customers will place an order of a million parts to get started. We are able to produce customized injection molding qty according to your personal solution and fulfill your needs. We will check color, appearance, and tolerance by quality control at every step during the injection molding manufacturing process.

Our China injection molding company's great efficiency and good control that converts into a better quality product with a more competitive injection molding price by investment in equipment and QC system. This is also the most important factor that we can provide good quality and medical grade plastics injection molding parts on time.

Types of Injection Moulding Service Available

Medical Injection Molding

Packson passed the ISO13485 certification and established an ISO class 8 dust-free injection molding in china production workshop.

Clean Room Injection
Medical Liquid Silicone Rubber(LSR) molding is also one of our important buisness.Packson built class 8 clean room for LSR molding and ship out 20K pcs parts every week.

Plastic Injection Molding
With more than 40 injection machines from 10 tons to 1000 tons, we have ability to help you make all kinds of parts and meet different needs.

Silicone Rubber Injection Molding
Liquid Silicone Rubber Molding is becoming more and more popular for medical and food industry. We have normal injection room and clean room for meeting your various needs.

Custom Contract Molding
Not all custom contract molding provider are the same. We are an ISO-certified who provide engineering, custom injection molding, and contract manufacturing services.

Injection Molding Process

What is injection Molding

Injection molding is the process of obtaining moulded products via injecting heat-molten plastics into a mould. Then cooling parts down and solidifying them in the cavity. The way is applied for the high volume of products with complex forms and is largely involved in the field of plastic industry. The injection moulding method consists of 6 main steps as follows. The method is carried out as described above and the products are carried out in succession by repetition of the run.

How does injection molding work?

The injection molding process consists of six steps: 1. Clamping 2. Injection 3. Dwelling 4. Cooling 5. Opening 6. Ejection. Each stage is indispensable and needed to be set with the right parameter.

Clamping

A molding machine has three basic components: the mold, the tightening unit, and the injection unit. The high-resistance clamp works by keeping both halves of the injection mold together during injection and cooling. Tightening is carried out with the help of hydraulic or electrical pressure.

Injection

The plastic granules pass through a hopper above the injection plant. The granules are supplied into a cylinder for heating up to melting. A motorized screw, or ram inside the heater cylinder then blends the molten granules and forces the liquid polymer to the tip of the cylinder. After a sufficient amount of material has built up in front of the screw, the injection molding process begins. The fusion plastic is injected into the mold through a spruce tree, whereas the pressure and speed are driven via the screw.

Dwelling

The Dwelling stage increases the pressure during the injection. When the melted plastic has been inserted into the mold, a pressure is suitable for ensuring that all cavities in the mold are filled. This part of the injection molding process allows the construction of moulded parts' total wall thickness.

Cooling

The cooling step of the injection molding process makes it possible for the molded part to cool properly. Cooldown times depend on the thickness of the parts.

Opening

The mould splits when the clamping pressure clears. When this happens, the mould is divided in two halves.

Ejection

The mold is ejected with a rod and ejection plate to eject the new high resistance finished part generated. Unused carrots and couriers can be recycled to be reused for subsequent production cycles.

Injection Molding FAQ

Q
What plastics are used in injection Molding?

A
Crystalline Plastics, Amorphous Plastics, Imidized Plastics, Polyethylene (PE), Polypropylene (PP), Acrylonitrile Butadiene Styrene (ABS), Polyoxymethylene (POM), Polystyrene (PS), Resin, Nylon, Polycarbonate, Thermoplastic Rubber, Fiber Reinforce Plastic, Glass Filled Nylon, Acrylic, Polymethyl Methacrylate(PMMA), Polycarbonates (PC), High-density polyethylene (HDPE), Liquid Silicone Rubber.

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What are the applications of injection molding?

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The injection molding enables the production of high-quality and complex plastic components. We are involving in medical equipment, automotive components, electronic appliances, agricultural equipment and construction components, and general consumer goods.

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What size of parts are you able to produce?

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The clamping force of the injection machine is 60-1000 Tons in our production. The range of size is from very small to large.

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What is the distinction between injection molding and 3D prints?

A
3D printing and plastic injection molding are two useful processes in themselves. 3D printing gave engineers the power to create plastic drawings on their desks and implement them within hours. Injection molding is also a benchmark for quality and value. It is widely used to produce large volumes of products with complex shapes.

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What are the advantages of injection molding?

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1. Greatly efficient-The injection molding process provides rapid, high-efficiency production

2. Complex shape & Detailed features- The intricate and complex shapes are designed and produced with high pressure during molding. Otherwise, the cost will be too expensive and the work will be too hard to make it.

3. High-performance strength- The polymer in the screw has been decreased the density by the pressure. To make the parts to be strong and durable.

4. Suitable for Multiple Raw material-Can be used in a variety of industries. Automobile, healthcare, electricity, agriculture.

5. Automating to reduce production costs.- The injection molding with machines and robotics is an automated process. It helps to reduce produced costs and time.

Q
How much does plastic injection moulding mould cost ?

A
Before taking into account the plastics used to create a part, it is first necessary to determine the price of the mold that forms the product. The cost of tooling may between $1000 to several thousand dollars which are calculated by how complex the parts are.

Packson - Your Injection Moulding Manufacturer

Your Expert in Injection Molding
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ISO Class 8 Clean Room

Equipped with clean room and certificated with ISO 13485 and ISO 9001, we are able to hanlde your medical OEMS production.

Quality Control

We will check color, appearnce and tolerance by qulity control at every step during manufacturing process.

Low & High Volume Manufacturing

Except long run production, we also can provide better solution for your low-volume production by prototyping tooling.
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Competitive Price

Our good investments in euipments and QC system help us to get greater efficiency and higher quality which decrease reject ratio. All these make us send parts to you on time with competitive cost.

Reliability and Stability

Our 24 hours|3 shifts production system help your parts get into market quickly and steadily.