Hot runners for injection blow molding

Available from Thermoplay S.p.A.
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In the most common applications the injection system is made up of an unbalanced manifold with the nozzles threaded on it . The nozzles are often free flow and they are heated by the heat transferred by conduction from the manifold.
The new Thermoplay design is made up of a manifold with balanced flow channels and the nozzles are assembled to it only by mechanical compression (seated nozzles). This technology allows the nozzles to be always centered within the cavity, reducing the wear in the coupling zone. The nozzle plate is conditioned to have the same temperature as the mold (30°C).
An outer body is screwed externally on each nozzle (so that it can be easily removed) which couples with the forming cavity.
All the Thermoplay nozzles are provided with plastic sealing zones in order to avoid any plastics leakage and to guarantee an high quality injection point on the preform.
•Material uniformly distributed on the product and even wall thickness
•No strands at injection point, color streaks or discoloring
•Tighter tolerances on the bottle neck
•Temperature detection close to the injection point
•Uniform heat distribution on the whole nozzle length
•Nozzle bushing replaceable with nozzle drive and tightness
•Complete self standing hot half, ready for installation and suitable to any press machine
•Direct injection systems with shut off option

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