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Basic Information
- Series: A2F28 Bent‑Axis Fixed‑Displacement Axial Plunger Piston Pump / Hydraulic Motor
- Displacement: 28 cc/rev
- Models:
A2F28R1P4, A2F28R2P4, A2F28R3P4, A2F28R4P4
A2F28R1Z4, A2F28R2Z4
- Pressure: Continuous 35 MPa, Peak 42 MPa
- Features: High‑speed, high‑pressure resistant, compact structure, low noise, stable flow/torque output, low internal leakage
- Application: Small excavator, road roller, drilling rig, agricultural machinery, industrial hydraulic drive system
English FAQ (Product Detail Page)
Q1: What are these A2F28 units?
A: They are A2F28 series hydraulic plunger piston pumps and motors, with same 28cc displacement, different port configurations and mounting forms marked by suffix codes P4 & Z4.
Q2: What do model codes mean?
- R = Right‑hand rotation
- 1/2/3/4 = Version difference
- P4 / Z4 = Oil port layout, flange size and mounting specification
Q3: Core advantages?
Bent‑axis design with high power‑to‑weight ratio, high volumetric efficiency, good wear resistance, long service life under heavy‑duty working conditions.
Q4: Direct replacement?
Yes. Standard flange, shaft and oil port dimensions, fully interchangeable with original A2F28 pumps/motors.
