A10VNO28ED72/53R-VTE11N00P Rexroth Axial Piston Pump 28cc 210bar

Product Overview

The A10VNO28ED72/53R-VTE11N00P is a Bosch Rexroth A10VNO Series 52/53 axial piston variable displacement pump of swashplate design for open-circuit hydrostatic drives. It offers true drop-in interchangeability with original Rexroth units—identical mounting flanges, ports, and dimensions—so no piping or bracket modifications are required. Every unit is 100% tested under simulated operating conditions to guarantee reliable performance at nominal and peak pressures. Flow is proportional to drive speed and displacement and can be steplessly varied by adjusting the swashplate angle. The pump features low noise, excellent suction characteristics, and a compact design, making it ideal for low-to-medium pressure applications such as tractors and fan drives.

Technical Specifications

• Model: A10VNO28ED72/53R-VTE11N00P (A10VNO Series 53)
• Displacement: Maximum geometric 28 cm³/rev
• Nominal pressure (continuous): 210 bar
• Peak pressure: 250 bar
• Maximum speed at full displacement: 3200 rpm
• Control type: ED72 electro-hydraulic proportional pressure control (24 V, negative characteristic)
• Flow at maximum speed and full displacement: approximately 90 L/min
• Weight: approximately 11.5 kg (without through drive)
• Mounting flange: ISO 3019-1 standard
• Direction of rotation: R (clockwise when viewed on shaft end)
• Seals: Standard FKM or compatible options
• Compatible fluids: Mineral hydraulic oil (HLP per DIN 51524)

Key Technical Advantages

1. Precision swashplate and rotary group: High-hardness pistons and precision valve plate deliver high volumetric efficiency with minimal internal leakage, optimizing system efficiency.
2. Robust bearing design for extended life: Fixed bearings support the rotating group, allowing high drive speeds and significantly increasing service life.
3. Low noise and excellent suction performance: Optimized housing and rotating group reduce operating noise and pressure pulsation while providing superior suction characteristics for flexible installation.
4. Drop-in interchangeability and flexible electro-hydraulic control: Exact dimensional and port match to original Rexroth units. The ED72 electro-hydraulic proportional pressure control offers fast response and precise pressure regulation for easy system integration and upgrades.
5. Compact design and favorable power-to-weight ratio: Small envelope suits space-constrained applications and supports optional through-drive for multi-pump systems.

Application Areas

• Auxiliary pumps for tractors and agricultural machinery
• Fan drives and cooling systems
• Open-circuit systems in construction and mobile equipment
• Medium-to-low pressure industrial hydraulic power units
• Material handling and specialized vehicle hydraulic systems

Expert Maintenance Tips

Ensure suction lines are adequately sized, as short as possible, and free of unnecessary bends; maintain recommended absolute inlet pressure to prevent cavitation. Route the case drain line independently back to the reservoir and keep continuous case pressure within limits. Fully bleed the system before first start-up and maintain oil cleanliness at NAS Class 7 or better. Monitor oil temperature and filter differential pressure regularly; use HLP mineral oil conforming to DIN 51524 (ISO VG 32 or VG 46 recommended). Ensure stable 24 V power supply for the electro-hydraulic control. For long-term storage, fill with clean oil and seal all ports to prevent internal corrosion. When using through-drive, verify torque transmission capacity of the connecting elements.