Rubber Transfer Molding
What is Rubber Transfer Molding?
Rubber transfer molding places uncured rubber into part of a mold called a pot. When the ram is closed, the rubber flows into the cavity through a runner and gate system. The elastomer remains under high pressure and temperature until curing is achieved.
The advantages of rubber transfer molding include:
- Mid-to-high volume production
- Shorter production cycle times than compression molding
- Support for complex geometries and tight tolerances
Rubber Transfer Molding Steps:
- Uncured rubber is preformed to control weight, shape and specification
- Rubber preform is placed into pot
- Ram distributes (transfers) the rubber through the runner and gate system into the cavities
- Mold remains closed under pressure and temperature to reach optimal cure
- Parts are removed from the mold and the process is ready to begin again
