Plastic Injection Molding

Founded in 1978, Zhongde is a professional injection molding supplier focusing on OEM & ODM customized services. Based on 40 years technology deposition, we have developed a one-stop solution from mold designing and rapid prototyping to mass production. Our manufacturing capabilities include plastic injection molding service, compression molding service, CNC machining service, metal stamping service, 3D printing service, custom molding service,etc.

Plastic injection mold andmoldingis the most common manufacturing process for the fabrication of large quantities of plastic parts. As an ideal method to producing high volumes plastic parts in the same shape, Plastic custom mouldingcan be used to create various of plastic parts, which vary greatly in size, complexity and application. Almost every plastic item around you was manufactured by injection molding.

The precision plastic injectionmolding at Zhongde is a standard process involving a stainless steel mold, it can be divided into six stages: mold clamping, injection molding, pressure holding, cooling, mold opening, and product removal. At a certain temperature, the completely melted plastic material is stirred by a screw, injected into the mold cavity with high pressure, then cooled and solidified into the final plastic molded parts.Now the plastic injection priceis pretty proper.

Guideline of Plastic Injection Molding

Size of Plastic Injection Molding

Below table shows the size of Plastic Injection Molding parts we usually make. If you need a larger size, we can also help you achieve it.

Size	Metric	Inch
Length	2500
Width	2000
Height	1500	59

Available Material of Plastic Injection Molding

In addition to the general materials listed below, Zhongde can also modify the materials according to the special needs of customers. Our professional engineers will adjust the raw material formula to meet the unique conditions of use.

ABS | Acrylonitrile Butadiene Styrene

PA 6 | Polyamide 6, Nylon 6

PA 6/6 | Polyamide 6/6, Nylon 6/6

POM | Acetal Polyoxymethylene, Delrin

PP | Polypropylene

PE | Polyethylene

LDPE | Low-Density Polyethylene

HDPE | High-Density Polyethylene

UHMWPE |Ultrahigh Molecular Weight Polyethylene

PTFE | Polytetrafluoroethylene

PEEK | Polyether Ether Ketone

PC | Polycarbonate

PMMA | Polymethyl Methacrylate, Acrylic

PS | Polystyrene

PVC | Polyvinyl Chloride (Shore D)

PU | Polyurethane

Additives of Plastic Injection Molding

Name	Description
UV absorbers	Absorb UV radiation, slowing down the degradation of the material when used outdoors.
Flame retardants	Prevent ignition and inhibits spread of fire.
Plasticizers	Increase flexibility and promotes plasticity, reducing brittleness of the material.
Colorants	Used to color plastics.
Carbon fibers	Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle.
Glass fibers	Increase strength, toughness, and rigidity of the material at the expense of making the material more brittle. It is more flexible than carbon fibers.

Surface Finishing of Plastic Injection Molding

Name	Description
Glossy	The mold is smoothed and then polished with a diamond buff, resulting in parts with a mirror-like finish.
Semi-gloss	The mold is smoothed with fine-grit sandpaper, resulting in parts with a fine surface finish.
Matte	The mold is smoothed using fine stone powder, removing all machining marks.
Textured finish	The mold is first smoothed with fine stone powder and then sandblasted, resulting in a textured surface.
As-machined finish	The mold is finished at the machinist's discretion. Tool marks may be visible.

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