Rexroth A7VO Axial Piston Variable Pump 28-160 ml/rev for Heavy Machinery with 400 Bar Pressure Rating

The A7VO series represents a high-performance variable displacement piston pump engineered for heavy machinery and industrial hydraulic systems. With exceptional power density and proven reliability, this pump serves as the core power source in demanding applications worldwide.

Operating on the slanted disc axial piston principle, the A7VO pump converts mechanical energy from prime movers (diesel engines or motors) into hydraulic energy. The drive shaft rotates the cylinder body while plungers reciprocate within, with the inclined plate angle determining plunger stroke length and pump displacement. Variable displacement allows infinite flow adjustment from zero to maximum capacity.

• Ultra-high performance: Withstands continuous working pressures up to 400 bar with optimized bearings and friction pairs
• Energy efficiency: Advanced variable control technology matches output to system requirements, reducing fuel/electricity consumption
• Exceptional reliability: Robust construction with forced circulation lubrication for demanding conditions
• Low noise operation: Optimized manifold design and pre-compression technology minimize pressure shock
• Modular flexibility: Multiple control modes, displacement specifications, and installation options

• Constant power control (LR, LU): Automatically adjusts displacement to maintain constant output power, protecting prime movers from overload
• Hydraulic remote control (HD): Displacement adjustment via external hydraulic signals
• Electro-hydraulic proportional control (ED, EW): Electrical signal integration (0-10V or 4-20mA) for PLC and automation systems
• Pressure cutoff control (DR): Reduces displacement at set pressure for energy conservation
• Load sensitive control (LV): Automatically provides required flow and pressure based on load demand

Construction machinery, mining equipment, marine engineering, industrial applications, and forestry machinery including hydraulic excavators, concrete pump trucks, drilling rigs, and injection molding machines.

Key selection parameters include system working pressure, flow requirements (L/min), control method, drive source compatibility, installation interface (SAE C, DIN, ISO standards), and additional function requirements.

QUZHOU OUSTER HYDRAULIC Co., Ltd specializes in hydraulic pumps and components with over 13 years of export experience, serving customers in more than 68 countries worldwide.