A4FO Series Hydraulic Pump A4FO28/32R-NSC12N00 A4FO500/30R-PZH25N00 A4FO71/10R-PPB25N00 Piston Pump
Price:
NIGOTIATION
MOQ:
1
Delivery Time:
15 work days
Brand:
REXROTH
Product Description
A4FO Series Hydraulic Pump A4FO28/32R-NSC12N00 A4FO500/30R-PZH25N00 A4FO71/10R-PPB25N00 Piston Pump
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Stable Constant Flow Output: Fixed displacement structure ensures linear and stable flow output matching driving speed, with minimal pressure fluctuation. It effectively eliminates system jitter and pressure drop under variable load conditions, ensuring precise and consistent operation of hydraulic actuators.
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Heavy-Duty High-Pressure Resistance: All models adopt upgraded internal pressure-bearing structure and high-strength alloy core components. They support long-term stable high-pressure operation, fully meeting the power demands of light, medium and heavy-load hydraulic equipment scenarios.
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High Energy Efficiency: Optimized smooth internal flow channels reduce fluid resistance and mechanical friction loss. Excellent volumetric and mechanical efficiency lowers power consumption during long-duration continuous operation, improving the overall energy utilization of hydraulic systems.
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Parameter Item
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A4FO22
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A4FO28
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A4FO71
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A4FO125
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A4FO180
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A4FO250
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|---|---|---|---|---|---|---|
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Pump Type
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Axial Piston Fixed Displacement Pump (Open Circuit)
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Nominal Pressure
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400 Bar (40 MPa)
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400 Bar (40 MPa)
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400 Bar (40 MPa)
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400 Bar (40 MPa)
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400 Bar (40 MPa)
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400 Bar (40 MPa)
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Peak Pressure
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450 Bar (45 MPa)
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450 Bar (45 MPa)
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450 Bar (45 MPa)
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450 Bar (45 MPa)
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450 Bar (45 MPa)
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450 Bar (45 MPa)
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Nominal Displacement
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22 ml/r
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28 ml/r
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71 ml/r
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125 ml/r
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180 ml/r
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250 ml/r
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Rated Speed
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1500 r/min
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1500 r/min
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1450 r/min
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1450 r/min
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1350 r/min
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1300 r/min
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Max Allowable Speed
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2200 r/min
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2000 r/min
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1800 r/min
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1600 r/min
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1500 r/min
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1400 r/min
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Shell Pressure
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≤ 0.1 MPa
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Operating Temperature
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-20℃ ~ +90℃
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Recommended Hydraulic Oil
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L-HM32 / L-HM46 Anti-wear Hydraulic Oil
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Oil Viscosity Range
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20–45 mm²/s
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Volumetric Efficiency
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≥94%
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≥94%
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≥93%
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≥93%
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≥92%
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≥92%
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Comprehensive Efficiency
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≥89%
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≥88%
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≥88%
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≥87%
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≥86%
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≥86%
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Noise Level (Rated)
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≤60dB
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≤62dB
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≤65dB
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≤68dB
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≤70dB
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≤72dB
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Table of values
| Size | 22 | 28 | 71 | 125 | 180 | 250 | 500 | 250 | 500 | |||
| Version | Standard | High speed | ||||||||||
| Displacement geometric, per revolution |
Vg | cm³ | 22 | 28 | 71 | 125 | 180 | 250 | 500 | 250 | 500 | |
| Nominal pressure | pnom | bar | 400 | 400 | 350 | 350 | 350 | 350 | 350 | 350 | 350 | |
| Maximum pressure | pmax | bar | 450 | 450 | 400 | 400 | 450 | 400 | 400 | 400 | 400 | |
| Maximum speed 1) | nnom | rpm | 3600 | 3000 | 2200 | 1800 | 1800 | 1500 | 1320 | 1900 | 1500 | |
| Flow | at nnom | qV | l/min | 79 | 84 | 156 | 225 | 324 | 375 | 660 | 475 | 750 |
| Power | at nnom and pnom | P | kW | 53 | 56 | 91 | 131 | 189 | 219 | 385 | 277 | 438 |
| Torque | at pnom | M | Nm | 140 | 178 | 396 | 696 | 1003 | 1393 | 2785 | 1393 | 2785 |
| Weight (approx.) | m | kg | 13.5 | 13.5 | 34 | 61 | 76 | 120 | 220 | 120 | 220 | |
The A4FO series consists of heavy-duty fixed-displacement axial piston hydraulic pumps designed for open-circuit hydrostatic drive systems. Covering six mainstream models: A4FO22, A4FO28, A4FO71, A4FO125, A4FO180 and A4FO250, this full-range product lineup covers small, medium and large displacement requirements for industrial and mobile machinery. Adopting optimized swash plate structure, precision integral machining and reinforced pressure-resistant design, all A4FO pumps deliver stable constant flow, high pressure output and continuous reliable operation. Featuring compact structure, low noise, strong overload resistance and excellent environmental adaptability, the series serves as a high-reliability direct replacement solution for diverse high-pressure hydraulic systems with long service life and low failure rate.
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Company
BETTER PARTS Machinery Co., Ltd.
Location
Room 301-2295, Building 6, Kelin Road, Tianhe District, Guangzhou
Contact Person
Bonnie