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KraussMaffei Technologies GmbH

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DETAILED PRODUCT DESCRIPTION
Door foaming
With the RotoStar drum unit, KraussMaffei offers a reliable door foaming and processing solution.
Principle
The RotoStar drum unit is a door foaming and manufacturing system. It consists of a main frame supporting a rotating drum which carries the water-heated door foaming fixtures. The number of fixtures is customer-specific and is planned to suit production requirements and processing parameters, eg, curing times.
Technology
The main frame is made of welded and machined box section steel tubing strong enough to support the rotating drum unit holding all the door foaming fixtures. The drum unit consists of a horizontal hollow shaft with a disk at either end to which the door foaming fixtures are attached. Supply lines for the heating water and compressed air run through the hollow shaft. The fixtures and the drum are moved by a hydraulic cylinder or by an electric motor with a gearbox. The use of hydraulic proportional valves controlled from the PLC control panel makes it possible to adjust acceleration and deceleration profiles and ensures a smooth rotation speed. The door fixture consists of two platens made in welded and machined box section steel tubing with aluminium face plates, which support the pallet and the moulds for the refrigerator doors. The temperature of the water-heated moulds is regulated in the temperature control unit connected to the RotoStar via a rotating coupling, with a manual valve block for easy system maintenance. One or two mixing head manipulators can be used. Running on overhead rails, they can be easily and independently positioned and controlled for automatic pouring.
Customer benefits
Fast cycles. Small footprint.Modular design for customer-specific systems. Pouring into closed or open mould. Multi-model production capability.
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