Hydraulic pressing tool, has moving part whose return movement takes place by opening return valve based on predetermined, adjustable pressing pressure, where pressing pressure is gradually adjusted

摘要

The pressing tool (1) has a fixed part (2), and a moving part that is moved by a hydraulic piston relative to the fixed part and moved back into a starting position by a reset spring. The return movement takes place by opening a return valve (6) based on a predetermined, adjustable pressing pressure, where the pressure is gradually adjusted. A rotary switch (7) is provided at pressure/sliding switches (11a) or transition keys for adjusting the predetermined pressing pressure. A valve housing (11) of the return valve is received movably and freely into a cylinder.