Rexroth A10VO71 Hydraulic Variable Pump for Mining Truck Concrete Mixer and Drilling Rig

Product Overview:
The A10VO71 is a high-performance swashplate design axial piston pump from the renowned Rexroth A10V series. Specifically engineered for open circuit hydraulic systems, this variable pump delivers exceptional reliability, efficient operation, and precise control under demanding conditions . With a displacement of 71 cm³/rev and multiple advanced control options, it provides stepless flow adjustment for a wide range of medium-pressure industrial and mobile applications . This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model: A10VO71

• Type: Swashplate design, variable axial piston pump 

• Displacement: 71 cm³/rev (steplessly variable from Vg max to Vg min) 

• Nominal Pressure: 280 bar (continuous operation) 

• Maximum Pressure: 350 bar (peak) 

• Maximum Speed: Up to 3300 rpm (depending on control type)

• Flow Rate: Up to 140 L/min (at max speed)

• Control Options: DR (pressure control), DFR/DFR1 (pressure/flow control - load sensing), DRG (pressure control with remote compensator), DFLR (power control), and more 

• Design: For open circuit hydraulic systems 

• Mounting Flange: SAE / ISO 3019-1 standard (2-bolt)

• Port Connection: SAE J518 flange ports

• Weight: Approximately 35-40 kg (depending on configuration)

• Material: Robust cast iron construction 

• Temperature Range: -20°C to +80°C

Core Features:

• Robust Swashplate Design: The proven swashplate design with cast iron construction ensures reliable operation, excellent efficiency, and long service life in open circuit applications .

• Multiple Advanced Control Options: Wide variety of controls available (DR/DFR/DFR1/DRG/DFLR) to suit specific application needs, allowing precise customization to various system requirements .

• Stepless Variable Displacement: Flow is proportional to drive speed and displacement, adjustable steplessly from maximum down to zero via the swashplate angle, offering precise flow matching to reduce energy consumption and heat generation .

• Excellent Suction Characteristics: Superior self-priming performance ensures reliable operation even in demanding conditions and at higher speeds .

• Through-Drive Capability: Universal through-drive design allows mounting of additional pumps up to the same nominal size for multi-circuit systems, enabling flexible and space-saving system configurations .

• Low Noise Operation: Optimized design ensures low noise levels during operation, making it suitable for noise-sensitive environments .

• Short Control Response Times: Controls with rapid response times ensure precise operations and better handling in dynamic system conditions .

• High Power-to-Weight Ratio: Compact construction delivers impressive power density in a lightweight package, with high power/weight ratio .

• Durability: Robust bearing system and high-quality cast iron materials ensure long service life in demanding continuous operation - "long service life" and "ultra-long life" are key characteristics .

• Dual Case Drain Ports: Two case drain ports (shell oil drain ports) facilitate maintenance and fluid management within the hydraulic system .

• Versatile Applications: Suitable for both mobile and fixed industrial applications .

Main Applications (Suitable Equipment):
The A10VO71 is widely recognized as a versatile and reliable hydraulic power unit for medium-pressure applications. It is extensively used in:

1. Construction Machinery:

• Excavators (medium-sized) - main and auxiliary pump functions 

• Concrete pump trucks - boom and auxiliary systems 

• Road rollers and compaction equipment

• Crawler dozers and loaders

• Concrete mixing plant hydraulics 

2. Material Handling Equipment:

• Forklifts (heavy-duty counterbalance trucks)

• Telehandlers and rough-terrain forklifts

• Aerial work platforms (scissor lifts, boom lifts) 

• Mobile cranes and crawler cranes 

3. Mining & Tunneling Machinery:

• Mining equipment and rock drilling rigs 

• Tunneling boring machines and roadheaders 

• Coal mining machinery - hydraulic main pumps 

4. Industrial Machinery:

• Machine tools (hydraulic feed systems, clamping systems)

• Injection molding machines - main hydraulic power

• Hydraulic presses (C-frame, H-frame presses)

• General industrial hydraulic power units 

• Metallurgical equipment (steel mills, rolling mills) 

5. Agricultural Machinery:

• Tractors (auxiliary hydraulic functions)

• Harvesters and forage harvesters

• Agricultural implements with hydraulic drives

6. Marine & Offshore:

• Ship hydraulic systems (deck machinery, winches) 

• Offshore equipment and port machinery 

7. Specialty Applications:

• Petroleum machinery and oil field equipment 

• Municipal vehicles and refuse trucks

8. Rotary Drilling Rigs:

• Foundation equipment and piling rig