plastic mould, injection mould

Thermoplay launches manifold for blow moulding

Italian company Thermoplay has developed a new hot runner manifold that makes the latest innovations in hot half design available to processors running Aoki or Nissei ASB single-stage injection stretch blow moulding equipment.

The new design - the company's first for the single stage sector - replaces the standard one-piece non-thermally regulated manifold with a fully balanced and regulated alternative. It also uses a floating nozzle arrangement, which overcomes wear and alignment problems due to differential thermal expansion of the manifold and mould (the hot runner operates at around 240C compared to the 40C mould).

The Thermoplay design also eliminates the need for a sealing ring on the nozzle tip and provides a much improved gate vestige - there is said to be no stringing and no evidence of white crystallisation spots. 



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