Tunnel Gates

The Maxiflow and Ringelflow—two recent additions to the EXAflow® tunnel gate insert family—are highlighted in a 28-page catalog from Superior Die Set Corp. (Oak Creek, WI). Designed to conceal gate marks producing molded parts with unblemished surface finishes and perfect edge quality and to eliminate secondary part trimming operations by providing automatic separation between the finished part and the runner system, the range of tunnel gate inserts is now comprised of five basics types: the Standardflow, in rectangular or cylindrical options; the ultra compact Miniflow, for thin walled plastic parts; the modifiable Konturflow and the new Maxiflow and Ringelflow inserts.

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The Maxiflow and Ringelflow—two recent additions to the EXAflow® tunnel gate insert family—are highlighted in a 28-page catalog from Superior Die Set Corp. (Oak Creek, WI). Designed to conceal gate marks producing molded parts with unblemished surface finishes and perfect edge quality and to eliminate secondary part trimming operations by providing automatic separation between the finished part and the runner system, the range of tunnel gate inserts is now comprised of five basics types: the Standardflow, in rectangular or cylindrical options; the ultra compact Miniflow, for thin walled plastic parts; the modifiable Konturflow and the new Maxiflow and Ringelflow inserts. The Maxiflow insert is offered with three tunnel configuration options—allowing for the gate points up to 10mm above or below the parting line, gate diameters up to 3.5mm and shot weights up to 1, 200 grams per insert, making it feasible to tunnel gate plastic parts with greater depth and size than previously possible. Providing almost 270 degrees of runner to gate travel, the Ringelflow proves perfect for internal gating housing type plastic parts, two shot molds and producing plastic parts with fully rounded or sealing edges. The catalog features product selection charts with recommendations for gate diameters, runner shape and lengths, ejector pin spacing and sprue puller pin length relative to the type of plastic material used and the size of the finished part.