0510625022 AZPF-11-016RCB20MB | Rexroth Gear Pump 16cc 280bar

Product Overview

The 0510 Series Hydraulic Gear Pumps are high-performance external gear pumps from the AZPF series of Bosch Rexroth, with 0510 serving as the Rexroth internal order number prefix. Bosch Rexroth is a global leader in drive and control technologies, and the AZPF series gear pumps are renowned for high efficiency, high reliability, and long service life, widely used in industrial hydraulics, construction machinery, agricultural equipment, and material handling applications.

The AZPF series features die-cast aluminum alloy housings with hydrostatic clearance compensation and high-load slide bearings. The series covers displacements from 4 to 28 cm³/rev, with maximum continuous operating pressure up to 250 bar and peak pressure up to 280 bar. The 0510 series order numbers cover both single pumps and multi-pump configurations.

0510625022 (AZPF-11-016RCB20MB) model code breakdown:

• AZPF: Rexroth external high-performance gear pump series

• 11: Size code

• 016: Displacement of 16 cm³/rev

• RCB: Configuration code (rotation, shaft, flange)

• 20MB: Seal and additional configuration code (NBR seal)

0510525325 (AZPF-12-014LRR20MB) model code breakdown:

• AZPF: Rexroth external high-performance gear pump series

• 12: Size code

• 014: Displacement of 14 cm³/rev

• LRR: Configuration code – L indicates counter-clockwise rotation

0510525034 (AZPF-11-014RFO30PB) model code breakdown:

• AZPF: Rexroth external high-performance gear pump series

• 11: Size code

• 014: Displacement of 14 cm³/rev

• RFO: Configuration code – R indicates clockwise rotation

• 30PB: Seal and additional configuration code

We specialize in the R&D and manufacturing of high-pressure pumps, motors, and valve groups. All 0510 series models offer 100% direct interchangeability with original Bosch Rexroth AZPF series pumps of the same model—no modification required. Every unit undergoes 100% simulated load testing before shipment, ensuring performance validation under real-world operating conditions.

Technical Specifications 

0510625022 (AZPF-11-016RCB20MB) Specifications：

• Model: 0510625022 / AZPF-11-016RCB20MB

• Brand Series: Bosch Rexroth AZPF Series

• Pump Type: External gear pump

• Displacement: 16 cm³/rev (16 ml/r)

• Maximum Flow: 47.2 L/min (@ 2950 rpm)

• Rated Flow: 48 L/min (@ 3000 rpm)

• Continuous Operating Pressure: 250 bar

• Peak Pressure: 280 bar

• Maximum Speed: 3500 rpm

• Rated Speed: 3000 rpm

• Rotation Direction: Clockwise

• Drive Shaft: Conical 1:5

• Mounting Flange: Rectangular flange, 80 mm centering diameter

• Line Connection: Square flange to ISO 8434-1

• Housing Material: Aluminum

• Rear Cover Material: Cast iron (standard)

• Seal Material: NBR

• Shaft Seal: NBR

• Bearings: High-load slide bearings

• Weight: 3.7 kg

• Mounting Holes: 4×M6, 13 mm deep

• Shaft End Diameter: 17 mm

• Shaft End Thread: M12×1.5

• Fluid Media: Mineral hydraulic oil

• Sealing System: Pressure-dependent gap sealing

0510525325 (AZPF-12-014LRR20MB) Specifications：

• Model: 0510525325 / AZPF-12-014LRR20MB

• Brand Series: Bosch Rexroth AZPF Series

• Pump Type: External gear pump

• Displacement: 14 cm³/rev

• Rotation Direction: Counter-clockwise

0510525034 (AZPF-11-014RFO30PB) Specifications：

• Model: 0510525034 / AZPF-11-014RFO30PB

• Brand Series: Bosch Rexroth AZPF Series

• Pump Type: External gear pump

• Displacement: 14 cm³/rev

• Rotation Direction: Clockwise

Note: Specifications above are based on Bosch Rexroth AZPF series official technical data and publicly available information. Different configuration codes correspond to different shaft types, flange specifications, and port configurations. Refer to the pump nameplate for exact specifications.

Key Technical Advantages

1. Hydrostatic Clearance Compensation – High Efficiency with Long Service Life

The AZPF series features hydrostatic clearance compensation combined with pressure-dependent gap sealing technology, effectively minimizing internal leakage and maintaining high volumetric efficiency across all operating conditions. This design significantly reduces power loss and system heating, improving overall energy efficiency.

2. High-Load Slide Bearings – Withstands High-Pressure Continuous Operation

The AZPF series is equipped with high-load slide bearings capable of withstanding high radial loads. This design ensures long-term reliable operation under 280 bar peak pressure and continuous high-pressure conditions, significantly extending pump service life.

3. Die-Cast Aluminum Alloy Housing – Lightweight with Excellent Heat Dissipation

The AZPF series features die-cast aluminum alloy housings, achieving lightweight construction while maintaining structural strength. The excellent thermal conductivity of aluminum alloy aids in pump body heat dissipation, reducing oil operating temperature. The cast iron rear cover further enhances structural rigidity.

4. Precision Manufacturing with Modular Design – Flexible Mounting Configurations

The AZPF series achieves component consistency and reliability through high-precision manufacturing technology. Drive shafts conform to ISO or SAE standards, and mounting options include both rectangular flanges (80 mm centering diameter) and square flanges (ISO 8434-1 compliant). The 0510 series supports both single and multi-pump configurations, providing flexible solutions for complex hydraulic systems.

5. Low-Noise Operation – Improves Operator Environment

The AZPF series features standard noise level design. The low-noise characteristic improves the equipment operator’s working environment, reducing fatigue during extended operation.

Application Areas

• Industrial Hydraulic Systems—hydraulic systems for presses, injection molding machines, machine tools

• Construction Machinery—hydraulic systems for excavators, loaders

• Agricultural Machinery—hydraulic systems for tractors, combine harvesters

• Material Handling Equipment—hydraulic systems for forklifts, stackers

• Power Units—oil supply for various hydraulic power stations

• Lubrication Systems—forced lubrication systems for industrial equipment

Expert Maintenance Tips

Model Code Verification (verify each element):

AZPF series model codes contain critical information. Before selection and installation, confirm the following:

• AZPF: Rexroth external high-performance gear pump series.

• First digits (e.g., 11, 12) : Size code.

• Second three digits (e.g., 014, 016) : Displacement specification – 014 indicates 14 cm³/rev, 016 indicates 16 cm³/rev.

• Configuration code (e.g., RCB, LRR, RFO) : Includes rotation direction (R = clockwise, L = counter-clockwise), shaft type, flange specifications.

• Suffix (e.g., 20MB, 30PB) : Seal material and additional configuration – MB typically indicates NBR seal.

Verify Rotation Direction:

Confirm that the drive shaft rotation matches the direction code in the model – “R” indicates clockwise, “L” indicates counter-clockwise. Incorrect rotation will prevent pressure build-up and may damage internal gears and bearings.

Mounting Flange and Drive Shaft Matching:

AZPF series mounting centering diameter is 80 mm. Verify that the equipment-side flange type and shaft specification match the pump configuration before installation. The drive shaft is conical 1:5, with shaft end diameter of 17 mm and M12×1.5 thread. Mounting holes are 4×M6, 13 mm deep.

Suction Line and Fluid Requirements:

Use mineral hydraulic oil meeting ISO/DIN standards. Ensure the suction line is properly sealed with no air leaks and the suction filter is not clogged. Recommended suction vacuum does not exceed 0.3 bar (absolute pressure).

First-Start Priming Procedure:

After new pump installation or system overhaul, ensure the pump cavity is filled with oil before first start. Jog the pump at low speed and low pressure until the pump body is fully filled with oil and air is purged, then gradually increase to rated speed and working pressure. Running the pump dry will cause irreversible damage to gears and bearings.

Oil Cleanliness and Regular Maintenance:

Replace hydraulic oil and return filters every 1,000 operating hours or per equipment manufacturer recommendations. Using hydraulic oil with proper cleanliness will significantly extend pump service life. Regularly monitor pump body temperature—if it consistently exceeds +80°C, inspect the system cooling.