Rubber Injection Molding & Tool

Rubber Injection Molding

Rubber injection molding feeds uncured rubber from a hopper into heated barrel. The elastomer is then pushed by a screw-type plunger into a heated chamber. This material flows through a gate and runner system into mold cavity. The mold remains at the proper temperature until the rubber is cured.

The advantages of rubber injection molding include:

• Quicker cycle times
• Custom shapes with little flash
• Support for wide range of durometers

Rubber Injection Molding Steps:
1.) Material in injection unit ready for injection into cavity
2.) Material is injected from injection unit through runner system & gates into cavities.
3.) Parts (material) are cured in mold until the cure process is completed.
4.) Molded rubber parts are removed from mold and the process is ready to begin again