China is the world’s leader in plastic injection molding parts. Industries and uses range from automotive, military, construction, consumer products, and more. Redstone’s partners for injection molded plastic in China are located in Dongguan, near Hong Kong.
Redstone Capabilities for
Plastic Injection Molding in China
|SIZES AVAILABLE||20 grams to 10 kg|
|MATERIALS AVAILABLE||ABS, HDPE, LDPE, PE, PEEK, POM, PP and more.|
|TOLERANCE||+/- 0.008″ (0.203 mm)|
|LEAD TIME||5-8 weeks|
Plastic Injection Molding?
Injection molding is one of the most widely used methods for manufacturing with plastics thanks to its low cost, repeatability, and high-precision. Injection molding also has a higher variety of colors and plastic material types when compared to CNC machining or 3D printing.
Injection molding machines utilize high pressure and temperature to melt and form plastic. The pelletized raw plastic is feed-stock is melted in the injection machine and then injected into the steel mold. The plastic part cools and solidifies into the final part within a matter of seconds.
The main steps in injection molding are:
- Clamping: The steel mold is closed shut.
- Injection: Material is fed into the machine and melted by heat and pressure. The melted plastic is then injected into the mold — this is called the “shot.”
- Cooling: Plastic cools and solidifies into the intended form.
- Ejection: The part is ejected from the mold after it cools.