Rexroth A7VO107 Variable Piston Hydraulic Pump for Road rollers and compaction equipment

Product Overview:
The A7VO107 is a high-performance bent-axis design axial piston pump from the renowned Rexroth A7VO series. Specifically engineered for open circuit hydraulic systems, this variable pump delivers exceptional power density, reliable operation, and precise control under extreme loads . With a displacement of 107 cm³/rev and multiple advanced control options, it provides stepless, load-sensing adjustment for demanding mobile and industrial applications . This unit is a direct, high-quality replacement solution for original Rexroth equipment.

Technical Specifications:

• Model: A7VO107

• Type: Bent-axis design, variable axial piston pump

• Displacement: 107 cm³/rev (steplessly variable from Vg max to Vg min) 

• Nominal Pressure: 350 bar (35 MPa) 

• Maximum Pressure: 400 bar (40 MPa) 

• Control Options: LR (power control), LRD (power control with pressure cutoff), LRDS (load sensing + pressure cutoff + power limiter), DR (pressure control), HD (hydraulic pilot control), EP (electro-proportional) 

• Design: For open circuit hydraulic systems 

• Maximum Speed: 3150 rpm at Vg max 

• Mounting Flange: SAE standard options available

• Rotation Direction: Clockwise / Counter-clockwise (optional)

Core Features:

• Bent-Axis Design: The robust angled shaft and conical piston design ensure high efficiency, excellent starting characteristics, and resilience against shock loads. The drive shaft can withstand radial loads .

• Multiple Advanced Control Options: Wide variety of controls available (LR/LRD/LRDS/DR/HD/EP) to suit specific application needs, allowing precise customization to various system requirements .

• Stepless Variable Displacement: Flow is proportional to drive speed and displacement, and can be adjusted steplessly from maximum down to Vg min = 0, offering precise flow matching to reduce energy consumption and heat generation .

• High Power Density: Compact and lightweight construction delivers maximum power output in a minimal installation space, providing an excellent power-to-weight ratio .

• Through-Drive Capability: Can be combined with other pumps in through-drive configuration for multi-circuit systems (100% through-drive capability) .

• Durability: Compact, robust bearing system engineered for long service life in demanding continuous operation .

• Superior Suction Performance: Optimized port plate design ensures excellent self-priming characteristics even at higher speeds .

Main Applications (Suitable Equipment):
The A7VO107 is widely recognized as the core power unit for concrete machinery and various heavy equipment. It is extensively used in:

1. Concrete Machinery:

• Boom pumps for concrete pump trucks 

• Concrete placing booms and line pumps

• Concrete mixing plant hydraulics

2. Construction & Earthmoving Machinery:

• Excavators (medium to large size) 

• Loaders and bulldozers 

• Road rollers and compaction equipment 

3. Mining & Tunneling Equipment:

• Roadheader hydraulic systems (tunneling machines) 

• Rock drilling rigs and mining machinery 

4. Industrial Applications:

• Metallurgical equipment (rolling mills, shearing machines) 

• Machine tools (hydraulic feed systems, clamping systems) 

• Injection molding machines 

5. Material Handling:

• Mobile cranes and crawler cranes 

• Forklifts and aerial work platforms 

6. Marine & Offshore:

• Ship hydraulic systems (cargo cranes, steering gear)