The “multi-cavity” twin station machines of the hydraulic Hyblow series was manufactured for the high-capacity production of milk containers for a Peruvian customer.

A new screw geometry enabled the optimized processing of viscous HDPE with TiO2. The new design of grooved bushing, feeding zone and barrier geometry allows a 20% increase in the output with improved service life and lower wear due to the uniform load distribution over the entire screw length. This improves the homogeneity of the compound without an additional, costly mixing component.

Texte Alternatif About 70 to 80% of the energy used in a blow moulding machine is consumed in melting and cooling the plastic required for processing. The optimized extruder screw lowers the energy consumption required to melt the HDPE to a mere 200 Wh/kg. At the same time, the drive train of the extruder is also optimized so that the motor runs with the highest efficiency at a nearly optimal operating point.

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