A10VSO140DG/32L-PPB32U99 A10VSO180DRS/32L-PPB22U00 A10VSO180DRG/32L-PPB22U00 German Rexroth piston variable displacement piston pump imported with original packaging

Motor-pump matching focuses on torque, speed, and mounting compatibility. For standard industrial motors (IE3/IE4 efficiency), ensure the motor's output torque at the pump's nominal speed (1000-2800 rpm) exceeds the pump's starting torque by 20% (e.g., A10VSO140 requires ≥350 N*m torque at 1500 rpm). For mobile applications (diesel engines), use a flexible coupling with damping to absorb engine vibration, and verify the engine's idle speed (≥800 rpm) maintains sufficient pump suction. Key check: Motor flange must comply with ISO 9409-1 to avoid misalignment, which causes shaft seal failure.

First, confirm the system's pressure rating (≤350 bar continuous) and flow demand (match pump displacement to avoid oversizing). Check oil tank volume: It should be 3-5 times the pump's maximum flow (e.g., 140 cm³/rev pump needs 500-700 L tank). For retrofits, replace old filters with Rexroth's R928017544 (10μm pressure filter) to meet the pump's cleanliness requirement (ISO 16/13). If the system uses old mineral oil, test its viscosity (10-400 mm²/s) and water content (≤0.1%)--contaminated oil must be drained before installation.