Shenzhen HSJ Metal Fabrication Co., Ltd.
Shenzhen HSJ Metal Fabrication Co., Ltd.

Plastic Parts

Plastic is one of the most widely used material in many industries. This material has many advantages. Some kind of plastics are soft and flexible, and some are stiff and impact resistant. Usually, they are very cost efficient. Various plastic products are finally made through different plastic manufacturing process. It’s very important that designers and engineers to properly choose the right manufacturing process for different needs. As one of the leading plastic manufacturers, HSJ would like to offer customized plastic manufacturing services to customers.

Types of Plastic Manufacturing Methods

There are usually five types of plastic manufacturing: injection molding, reaction injection molding, thermoforming, extrusion blow molding and compression molding.

Injection molding

Injection molding is a process in which the plastic melted by the injection machine enters the mold under the thrust of the plunger or screw, and is cooled to obtain the product.

Reaction injection molding

The reaction injection molding (RIM) is to mix two reactive liquid materials with chemical reactions into a ramming flow and quickly inject them into the mold cavity for reaction molding.


It is a kind of vacuum molding. Plastic plates or sheets are placed on a die-casting mold, and the material is softened by heating, so that the plastic material is stretched on the surface of the mold, and vacuum pressure is used to shape it.

Extrusion blow molding

It is often used to make thin-walled and inexpensive containers, such as disposable water cups or water bottles. The softened plastic forms a parison, which is placed in a two-piece open-close mold. After the mold is closed, compressed air is blown into the parison to inflate it until it all adheres to the cavity wall. After the mold wall is water-cooled, the plastic part is quickly solidified, and then demolded to obtain the finished product.

Compression molding

It is a process in which the material is preheated and placed in the cavity of the die-casting mold, and the plastic is cured by pressure and heat after the mold is closed. This molding method is suitable for the production of plastic buttons, gaskets, O-rings, or other soft, easily plastic, thin-walled products.

Plastic Manufacturing Materials

For different plastic products, we may use different kinds of materials that have their distinct features. Generally speaking, there are five common used plastic materials, including polyethylene(PE), polypropylene(PP), polyvinyl chloride(PVC), polystyrene(PS) and acrylonitrile butadiene styrene(ABS). For example, we use the plastic + silicon so as to make the ipad be protection, which could waterproof and shockproof for the ipad.

wearhouse electronic enclosure
smart watch packing 1
protector for ipad plastic  silicon soft case cover 6

Factors to Consider when Choosing the Best Plastic Manufacturing Method

Factors to Consider when Choosing the Best Plastic Manufacturing Method

Material: the physical properties of the applied parts can help narrow the choice of plastic materials. It is important to choose the right material for specific application.

Factors to Consider when Choosing the Best Plastic Manufacturing Method

Form: when deciding the most economical and efficient manufacturing process, it is important to take the tolerance requirement, internal features and geometric complexity into consideration.

Factors to Consider when Choosing the Best Plastic Manufacturing Method

Delivery time: the final deadline can also help determine the best manufacturing method, because production time may vary depending on the process.

Factors to Consider when Choosing the Best Plastic Manufacturing Method

Quantity and cost: it is the key to find the balance between output and cost-effectiveness. For example, injection molding are usually economical in mass production but the opposite in prototyping because it requires high upfront cost.

Why Choose Us for Plastic Manufacturing?

  • First, we have our own manufacturing center with quick response and short delivery time. Second, we offer competitive prices. 

  • Second, we have professional designers to join your project and offer professional feedback and solution. 

  • At last, we accept the batch production and provide the sample before mass production. We also provide the CNC plastic parts which have tightness tolerance.

Application of Plastic Manufacturing

Plastic Cover
Plastic Cover

Material: Plastic +silicon

Color: Four Colors Black, Blue, Pink, Hot Pink, Army Green.

Feature: Kickstand, defender ,silicon+pc, shockproof.

Function: Full Protection + Shockproof + Anti-Scratch +Dirt-Resistant + Anti-Knock

Speaker Housing
Speaker Housing


Use: Computer, Home Theatre, Karaoke Player, Mobile Phone, Portal

Get In Touch With Us
One of the best metal fabrication companies from China.
Upload Your Design Files
Please Include Material, Surface Finishing, Quantity and Other relevant info,thanks.
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Visit our cookie policy to learn more.
Reject Accept