Motor Hydraulic Clamshell Grab

Motor hydraulic clamshell grab has hydraulic power and control system itself,and most parts of hydraulic system are imported from Europe and USA. The grab uses contast output pump and servo system. Pump output flow can be controlled by hydraulic system pressure changes. When cylinder pressure up to rated value, punp flow will be zero and reduce pressure automatically, it will avoid temperatyre rise from overflow, so it can ensure grab continuously working. Cable drum is hywdraulic coupling type,so it can protect cable and alongate cable lifetime.