Simplified hot runners save time & cost.

A new lower-cost hot-runner alternative to valve gating is suited to less critical cosmetic applications where users need predictable and reliable gate opening but not sequential gate operation. The new Control Gate system from Incoe Corp., Troy, Mich., features a spring-loaded design and pneumatics for gate operation. Control gates are opened by spring action against a piston and cylinder design. Closing is accomplished by applying pneumatic pressure to the full surface area of the piston, thus compressing the spring. This design reduces the number of components and the cost as compared with a valve-gate system that uses pneumatics or hydraulics for both the opening and closing valve movements.

Incoe will also introduce at NPE a water-cooled gate insert that requires minimal installation effort for the mold-maker. Also new is a system that combines two heaters in one nozzle heater coil to provide redundancy in case one heater fails, while maintaining the same dimensions as previous Incoe nozzle heaters and interchangeability with those designs. Incoe says this system is unlike other systems with two independent heater coils wound on the nozzle body, which interfere with proper heat profiling. Tel: [phone] * PT Direct 558JF

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