Brochure: Double End Stretcher | CJS-3X12

Interface Associates' Double End Tubing Stretcher is a bench-top system designed to stretch or neck down tubing parisons in preparation for the balloon forming process. In many applications, the final balloon design calls for a very small neck diameter with respect to the finished balloon size. The balloon neck diameter may be smaller than the raw tubing size needed to form the specific balloon. In order to thread the balloon tubing through the mold, the parison proximal and distal ends must be reduced in diameter. Diameter reduction is accomplished by stretching the tubing axially at an elevated temperature. The magnitude of the stretching temperature is such as to merely soften the material to reduce its yield strength without melting it.

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