Besides the material selection and the manufacturing process, a uniform wall thickness distribution over the whole hose circumference represents an essential quality criterion. To meet this need, German company Troester presents a new system for the automatic wall thickness centring for hose production. The main item of the new system is an optimised crosshead, which is provided with a conventional manual die piece adjustment by screws in the front area and additionally allows for sensitive swivelling of the inner tools (mandrel tip and extrusion mandrel) by means of a hydraulic drive.
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