A2FO23/61L-PAB05
3 week ago
Product details
Product Overview
The A2FO23/61L-PAB05 is a premium Rexroth bent-axis hydraulic piston pump, widely adopted as a core high-pressure hydraulic pump component to supply stable power for heavy-duty hydraulic system setups in construction machinery and industrial equipment. Featuring compact build and outstanding pressure resistance, it acts as an essential power source for auxiliary hydraulic circuits of concrete pump trucks, truck-mounted cranes, drilling rigs and dedicated industrial hydraulic power units.
Model Code Breakdown
1. A2F: Fundamental structural code for bent-axis axial piston assembly, shared by both pump and motor units within the hydraulic component lineup
2. O: Designated for open-circuit deployment, functioning exclusively as a hydraulic pump and not applicable as a hydraulic motor in the hydraulic system
3. 23: Nominal geometric displacement: 23 mL/r (23cc per revolution), a compact small-displacement specification for space-limited installation environments
4. 61: Series 6 standard production version, the mainstream generation compatible with displacements ranging from 10cc to 180cc for standardized spare part matching
5. L: Dual definition of rotation direction and bearing grade; counterclockwise rotation when facing the input shaft end, fitted with heavy-duty long-life bearings to sustain continuous high-speed running in rigorous hydraulic system cycles
6. P: NBR nitrile rubber sealing configuration, perfectly compatible with conventional mineral hydraulic oil commonly used in general hydraulic pump and hydraulic piston pump applications
7. A: Parallel key cylindrical shaft extension manufactured to DIN6885 industrial standard for power transmission connection
8. B: ISO 4-hole square mounting flange complying with ISO3019-2 universal mounting norms for seamless assembly into diverse equipment frames
9. 05: Port layout specification with side threaded main ports and an independent built-in S drain port dedicated to case oil return
Core Technical Parameters
Item Specification
Geometric Displacement 23 cm³/rev (23cc)
Continuous Rated Working Pressure 400 bar (40MPa)
Intermittent Peak Pressure 450 bar (45MPa)
Maximum Admissible Rotational Speed 3800 rpm
Standard Operational Speed Range 1500–3000 rpm
Theoretical Output Flow @1500rpm 34.5 L/min
Structure Type Bent-axis integrated tapered piston with piston ring sealing, classic structure of heavy-duty hydraulic piston pump
Net Weight Approximately 11kg
Suitable Hydraulic Medium HLP/HLR mineral hydraulic oil (optimal kinematic viscosity: 16–36mm²/s)
Main Application Scenarios Boom auxiliary hydraulic pump for concrete pump trucks, winch drive pump, drill rig power unit, small hydraulic breaker drive, high-pressure industrial hydraulic system stations
Product Advantages & Structural Characteristics
1. Adopts mature bent-axis architecture with excellent anti-shock and load fluctuation resistance, capable of enduring frequent pressure surges in engineering-grade hydraulic system operations
2. Fixed displacement design delivers flow output proportional to rotating speed only; simple internal structure cuts down failure risks, ideal for non-adjustable flow demands of standard hydraulic pump layouts
3. Integral piston paired with precision sealing rings guarantees high volumetric efficiency and ultra-low internal leakage, maintaining steady performance of the whole hydraulic piston pump over long service hours
4. L-type reinforced bearing assembly enables prolonged full-load high-speed operation without premature wear
5. Side-mounted main oil ports plus standalone case drain port bring flexible piping arrangement during hydraulic system integration
Interchangeable Model Variants & OEM Part Number
- A2FO23/61R-PAB05: Clockwise rotation alternative model, fully interchangeable with the original unit in all parameters, serving as a direct replacement hydraulic pump
- A2FO23/61L-VAB05: Equipped with DIN5480 splined shaft (V code), identical flange and port layout, only differing in shaft extension form
- Original Factory Ordering Part Number: R902193359 (globally stocked standard part number for bulk procurement of this hydraulic piston pump)
Critical Operation Guidelines
1. The case drain port must be separately piped to the hydraulic tank with zero backpressure; never connect it to the main return pipeline, which would damage the whole hydraulic system and the hydraulic pump core components
2. Fully fill the pump cavity with hydraulic fluid and complete air bleeding before startup to prevent dry friction abrasion of the valve plate assembly of the hydraulic piston pump
3. Permissible hydraulic oil temperature range: -20℃ to +80℃; equip auxiliary cooling equipment for persistent high-temperature working conditions to protect the entire hydraulic system
4. Install a 10μm precision filter element upstream to filter impurities and safeguard the finely machined piston matching pairs inside the hydraulic pump
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
Audited supplier
4 year
Main Product:
hydraulic motor,
gear box,
hydraulic pump,
hydraulic valve ,
hydraulic winch ,
hydraulic system