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End-of-Barrel Products

EMI End Cap System

Carl W. Toensing, Manager of Molding Technical Service; GEON Vinyl division, commenting on the jointly developed End Cap System:

"We knew we had to find a positive shut-off tip which was gentle enough for shear sensitive materials, yet allowed faster production. That's when we started working with EMI. They took the challenge and modified their 100% Free Flow sliding check ring valve, combining it with a narrow tapered flow path between the valve and the end cap, continuing all the way through the nozzle and tip. This development has proven to be a major success. It's given us the trouble-free performance and results which molders need for day-in, day-out molding of rigid vinyls in complex parts."

Contact EMI for pricing and to discuss your application. Process vinyl, polycarbonate, ABS and other low molecular weight materials consistently better

EMI's end cap system integrates a complete system of specially designed components to process heat and shear-sensitive materials. Employing a 100% free flow valve, and a special long-taper end cap-nozzle-tip assembly, eliminates turbulent flow of melt. The 100% free flow valve assures consistent shot control in a completely unrestricted melt flow path. The resulting smooth laminar flow discourages shear burn and reduces abrupt pressure drops. The narrow, tapered channel between the ring valve and the nozzle tip smoothly directs the melt, enhancing side-wall cleaning and inhibiting carbonized plastic build-up.

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