hot sale Rexroth Hydraulic Piston Pump AP2D12 AP2D18 AP2D21 AP2D25 AP2D28 AP2D36 Mini Excavator Hydraulic Main Pump

AP2D12 Hydraulic Pump

Parameter Typical Value (Nominal) Unit Notes
Displacement (per revolution) 12 cm³/rev Fixed base displacement; variable via swashplate adjustment
Rated Working Pressure 280 bar Continuous operation pressure
Maximum Working Pressure 315 bar Short-term (intermittent) pressure; ≤ 10% of operating time
Rated Speed 2000 rpm Optimal efficiency range
Maximum Speed 2400 rpm Avoid prolonged operation at max speed
Minimum Speed 600 rpm Prevent cavitation or insufficient lubrication
Oil Viscosity Range 20 – 400 cSt Recommended: 30 – 150 cSt (20–60°C)
Oil Cleanliness Requirement NAS 8 (ISO 18/15) – Use 10 μm absolute filter for system protection
Operating Temperature Range -10 – 80 °C Avoid freezing or oil oxidation
Weight (Approx.) 8 – 10 kg Varies by mounting and shaft type