Rexroth A4VTG90 Hydraulic Pump - 90 cm³/rev Variable Displacement, 350 Bar Continuous Pressure for Construction Machinery

The Rexroth A4VTG90 is a high-performance variable displacement axial piston pump engineered for heavy-duty hydraulic systems. As a core component of Bosch Rexroth's hydraulic power transmission lineup, it combines advanced engineering with robust construction and precise control capabilities. This pump efficiently converts mechanical energy into hydraulic energy, delivering stable pressure and flow for large-scale machinery and industrial equipment while adapting to dynamic load changes in complex working conditions.

• Maximum operating pressure: 350 bar continuous, 400 bar peak
• Withstands extreme pressure fluctuations in heavy-duty applications
• Optimized piston-cylinder assembly minimizes internal leakage
• Ensures consistent flow output under long-term high-load operation

• Variable displacement range: 0 to 90 cm³/rev
• Proportional electro-hydraulic control system
• Stepless adjustment according to real-time load demands
• Improves overall system efficiency by up to 15% compared to fixed-displacement pumps

• High-strength alloy steel components with surface-hardened treatment (HRC 58-62)
• Built-in oil filtration system and wear-resistant seals
• Service life exceeding 8,000 operating hours
• Reduces maintenance frequency by 30% compared to industry averages

Widely used in heavy construction equipment including hydraulic excavators, wheel loaders, and crawler cranes. Provides reliable hydraulic power for critical operations such as bucket digging, boom lifting, and crane hoisting, ensuring smooth performance in demanding environments with high dust, vibration, and temperature variations.

Employed in large-scale presses, plastic injection molding machines, and metal rolling equipment. Precise displacement control ensures consistent pressure for molding processes and material pressing, while high efficiency reduces energy consumption in production lines.

QUZHOU OUSTER HYDRAULIC Co., Ltd, established in 2015 with over 13 years of export experience, specializes in sourcing and distributing hydraulic pumps and hydraulic pump components. Our product range includes hydraulic pumps, hydraulic pump parts, hydraulic motors, gearboxes, and hydraulic valves. We have successfully exported our products to more than 68 countries worldwide, building a reputation for quality and reliability in the hydraulic industry.