Rexroth AZPF-11 & AZPG-11 Series External Gear Pump | AZPF-1X-011RCB20MB AZPG-11-028RCB20MB

Chengyuan Hydraulic presents the AZPF and AZPG series external gear pumps, engineered as premium, high-performance replacements for Rexroth industrial and mobile standards. This range features popular models such as the AZPF-1X-011 (11cc) and AZPG-11-028 (28cc).

Renowned for their compact design and high power-to-weight ratio, Chengyuan ensures 100% Drop-in Interchangeability regarding mounting flanges, shaft types (e.g., RCB20), and port configurations. Backed by our rigorous 100% Simulation Load Testing, every pump is validated for volumetric efficiency under high-pressure conditions before leaving the factory, ensuring consistent hydraulic power delivery even in demanding environments.

Technical Specifications

• Series: AZPF-1X (Series 1) / AZPG-11 (Series 1)

• Displacement: 11 $cm^3$/rev (Model 011) / 28 $cm^3$/rev (Model 028)

• Rated Pressure: 250 Bar (25 MPa)

• Peak Pressure: 280 Bar (28 MPa)

• Maximum Speed: 3000 – 4000 rpm (depending on displacement)

• Minimum Speed: 500 rpm

• Shaft Specification: RCB20 (Keyed or Tapered shaft 1:5)

• Rotation Direction: R (Clockwise, viewed from shaft end)

• Seal Material: NBR (Standard) or FKM (Optional)

• Body Material: High-strength extruded aluminum alloy

Key Technical Advantages:

• Axial Clearance Compensation: Utilizing floating bushings for pressure compensation, the pump automatically adjusts end-face clearances based on load, maintaining over 95% volumetric efficiency throughout its service life.

• High-Precision DU Bearings: Equipped with high-performance composite bushings that offer excellent load-bearing and anti-friction properties, effectively absorbing radial forces and extending the pump’s operational life.

• Silent Gear Technology: The gear sets are precision-ground with optimized profiles to minimize pressure pulsation and noise, making them ideal for indoor industrial environments with strict noise regulations.

• Superior Pressure Resistance: The high-strength aluminum body is manufactured through precision casting to ensure zero structural deformation or cracking even at peak pressures of 280 bar.

Application Areas:

• Agricultural Machinery: Tractor hitch systems and harvester hydraulic steering circuits.

• Industrial Equipment: Power units for small balers and auxiliary hydraulic stations for machine tools.

• Material Handling: Lift pumps for electric forklifts and power sources for scissors lifts.

• Municipal Vehicles: Compression mechanisms for garbage trucks and sweepers.

Expert Maintenance Tips:

• Suction Line Integrity: Avoid using fine-mesh filters on the suction line to prevent cavitation. Ensure the pipe diameter is sufficient to keep suction velocity between 0.5 and 1.5 m/s.

• Pre-Start Lubrication: After installation, fill the pump with clean hydraulic oil through the outlet port and rotate the shaft manually to ensure all internal components are lubricated before power-up.

• Shaft Alignment: Never use a hammer to install couplings. Ensure the alignment between the pump shaft and motor shaft is within 0.1mm to prevent axial stress that could lead to premature bearing failure.