Active screw-tip-set

Patent 2883677

Patent 2883677

Without any further movement of the screw this specially constructed “active” screw-tip-set shuts off after dosing. The shut-off process takes place immediately after dosing by means of a lead bolt, a pressure spring and a sealing cone.

The input housing serves to ensure precise processing within the barrel. The threaded bolt fixes the “active” screw-tip-set in the screw.

Conventional systems only become effective through the injection process and are passively closed by the occurring injection pressure.

Available from Ø 45 mm
Materials with low viscosity e. g. PA
With fluctuations of melt cushion
Low injection speeds
Small compression relief
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