AP2D12: Nominal displacement is 12 cubic centimeters per revolution (cm³/rev).
AP2D18: Nominal displacement is 18 cm³/rev.
AP2D21: Nominal displacement is 21 cm³/rev.
AP2D25: Nominal displacement is 25 cm³/rev.
AP2D28: Nominal displacement is 28 cm³/rev.
AP2D36: Nominal displacement is 36 cm³/rev.
Operating Pressure
Rated Pressure: Generally, the rated pressure for these pumps is around 200 - 250 bar (20 - 25 MPa). This pressure is suitable for powering the hydraulic systems of mini excavators, enabling smooth operation of functions like arm movement, bucket operation, and machine rotation.
Maximum Pressure: The maximum pressure that these pumps can withstand for short periods is usually higher, reaching up to 300 bar (30 MPa) or more. This additional pressure capacity allows the pumps to handle sudden high-load situations during the mini excavator's operation, such as when working in tougher soil conditions.