Tunnel Gate Inserts

Standardized inserts from PCS Company (Fraser, MI) permit bottom (submarine) gating in cases where the upper or visible surface of the part must be immaculate and not blemished by any gate vestige.

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Standardized inserts from PCS Company (Fraser, MI) permit bottom (submarine) gating in cases where the upper or visible surface of the part must be immaculate and not blemished by any gate vestige. They replace the two-part tunnel gates, which have to be painstakingly machined into the mold by the toolmaker. The inserts ensure unrestricted passage of the melt and the molded part, and the runner/gate are separated cleanly, either at the edge or on the underside of the part, such that the upper, visible surface is completely free from gate vestiges and can thus meet the highest surface quality requirements. These tunnel gate inserts are offered in a choice of three types, each type being available in several different dimensions and gate sizes: (1) TGR Series with round-section tunnel gate inserts, (2) TGS Series: tunnel gate inserts with square section; and, (3) contourable inserts of the TGC Series available in a choice of four sizes.