Clamping Devices is manufactured from special alloy casting steel and have two gripping jaws. One is “fixed” and one is “moveable”. The hydraulic clamp contains a hydraulic cylinder which closes the moveable jaw with up to 320 bar of clamping pressure. The jaws open and close by pushing the  “clamp open/close” switch on the remote control. Clamping and unclamping occur in a few seconds.