Product Introduction: The variable speed pump (walking pump) has the function of simple structure, compact, easy installation, controlling the pressure of the transmission hydraulic system and the working pressure of the torque converter. It is a special hydraulic pump in the planetary transmission hydraulic system of construction machinery. Performance Characteristics Displacement: 70ml/r Working pressure: 1.4-1.6MPa Speed :1800-2200r/min Adaptation: 50 loader of XGMA Longking industrial installation and supporting (planetary gearbox)