A cold deck (cold runner) system is an assembly of insulated feeding units that prevents liquid silicone from curing while conveying silicone into the cavities of the mold. The following are a few reasons that using a cold deck system can be very cost effective in high volume molding applications.
1. The cold deck eliminates waste (sprue and runners) that is generated in a conventional silicone injection molding.
2. The cold deck also reduces cycle time because it eliminates the need for a secondary process to remove the sprue and runner from the molded part.
3. A cold deck can also provide you with greater flexibility with both gate style (open vs. valve gated) and location.
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