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SMS Meer to Supply 2nd Screw Press for Schachmann
06/28/2007 - Warmpresswerk Schachmann places an order with SMS Meer to supply another SPE 20 screw press with electric direct drive.
Warmpresswerk Schachmann GmbH, Niederstadtfeld, Germany, has placed an order with SMS Meer, Germany, to supply another SPE 20 screw press with electric direct drive.
The new SPE 20, a product from the Eumuco Hasenclever Closed-Die Forging Product Unit, is the second screw press Warmpresswerk Schachmann has ordered. It follows successful testing of the series prototype over several months of continuous operation at Schachmann.
This machine’s drive is based on a servo-controlled synchronous motor. The rotor is fitted with permanent magnets and mounted directly on the screw. One particular advantage for this type of drive is the ideal, uniform progression of the torque characteristic from standstill, with the rotor undergoing only a slight amount of heating at the same time. The integrated speed control guarantees the highest repeat accuracy for the rate of deformation by the ram and, accordingly, consistently reproducible results for the forging work. When operated in combination with a converter provided with energy recovery, the braking energy arising during the return stroke is fed directly back into the network.
SMS Meer says that the SPE machine type is one of the most economical machines available, because the braking energy arising during the return stroke is fed directly back into the network by the converter.
The SPE series screw press has a very rigid monobloc frame compared with other screw press designs. This results in lower springback, which in turn shortens the pressure dwell time. The rigid frame design was made possible by the use of a hydraulic overload protection system.
Delivery of the new press is scheduled for August 2007.
