China Custom High Precision Plastic Injection Molding Services

 Plastic injection molding is 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 injection molding can 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 plastic injection molding 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.

 

Guideline of China custom plastic parts Injection Molding Service

Size of Precision Custom OEM Plastic Injection Moulding

 

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	98.4
Width	2000	78.7
Height	1500	59

 

Available Material of China Plastic Injection Molding Businesses For Sale

 

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 Manufacturing Practical Plastic Custom 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 Cheap/Low-Cost Plastic Injection Molding Services

 

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.