Screw wedge press

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Spindle wedge presses are characterized by an inclined spindle and a ram supported by a wedge . The threaded spindle runs parallel to the hypotenuse of the wedge and drives it into a cone, whereupon the plunger, which is movably mounted on the wedge, moves down along the guide.

A wedge angle of 24 ° results in torsional moments and tensile forces in the spindle that are 0.4 times smaller . Compared to the screw press, the machine works slower due to the small ratio , but the screw wear is lower and the forces applied to the ram are higher.


  1. Heinz Tschätsch: Machine tools for non-cutting and cutting shaping. Carl Hanser Verlag: Munich, Vienna, 8th edition 2003, ISBN 3-446-22141-7 , page 305