ALA10VO63 Rexroth Hydraulic Pump for Excavators Concrete Pumps and Drilling Rigs

Product Overview:
The ALA10VO63LA8DS is a high-performance swashplate design axial piston pump from the renowned Rexroth A10VO 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 63 cm³/rev and advanced LA8DS combined control, it provides stepless, energy-efficient 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: ALA10VO63LA8DS/53R-Vxx12N00 (complete material number e.g., R902483195, R902495751)

• Type: Swashplate design, variable axial piston pump

• Series: A10VO / 5X 

• Displacement: 63 cm³/rev (steplessly variable) 

• Nominal Pressure: 250 bar (continuous operation) 

• Maximum Pressure: 315 bar (peak) 

• Maximum Speed: 2600 rpm at Vg max 

• Flow Rate: Up to 163 L/min (at max speed) 

• Power Rating: 68 kW at nominal pressure 

• Control Type: LA8DS - Combined flow control + pressure control with load sensing capability

• Design: For open circuit hydraulic systems

• Through-Drive: 100% through drive suitable for adding gear pumps and axial piston pumps up to the same nominal size 

• Mounting Flange: D - 4-hole flange based on ISO 3019-1 (SAE) 

• Shaft Type: S - Splined standard shaft, ISO 3019-1 

• Rotation Direction: L - Counter-clockwise (view on drive shaft) 

• Port Connection: SAE flange ports according to ISO 6162, metric 

• Weight: Approximately 22 kg 

• Material: Robust cast iron construction

• Temperature Range: -20°C to +90°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. Features excellent suction performance and low noise operation .

• Advanced LA8DS Control: Combined control system providing precise flow regulation, pressure cutoff protection, and load sensing capability for optimal energy efficiency and system performance.

• 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, minimizing cavitation risks .

• 100% 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, contributing to a more comfortable working environment and meeting stringent workplace noise regulations .

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

• High Power Density: Compact construction delivers 68 kW of power in a 22 kg package, providing excellent power-to-weight ratio .

• Durability: Robust bearing system and high-quality cast iron materials ensure long service life in demanding continuous operation, with MTBF exceeding 10,000 hours.

• High-Pressure Capability: Up to 315 bar peak pressure for demanding applications .

Main Applications (Suitable Equipment):
The ALA10VO63LA8DS is widely recognized as a versatile and reliable hydraulic power unit for medium-pressure applications requiring precise flow and pressure control. It is extensively used in:

1. Construction Machinery:

• Medium excavators (12-20 ton class) - main or auxiliary pump functions

• Crawler excavators and material handlers

• Wheel loaders and backhoe loaders

• Road rollers and compaction equipment

2. Crane & Lifting Equipment:

• Mobile cranes and crawler cranes

• Truck-mounted cranes and telescopic handlers

• Aerial work platforms (boom lifts, scissor lifts)

3. Concrete Machinery:

• Concrete pump trucks - boom control systems

• Concrete mixers and placing booms

• Shotcrete machines and grouting equipment

4. Industrial Machinery:

• Machine tools (hydraulic feed systems, clamping systems)

• Injection molding machines - auxiliary functions

• Hydraulic presses and forming equipment

• General industrial hydraulic power units

5. Material Handling Equipment:

• Forklifts (heavy-duty counterbalance trucks)

• Telehandlers and reach stackers

• Container handlers and port equipment

6. Agricultural Machinery:

• Tractors (hydraulic implement control)

• Harvesters and forage harvesters

• Agricultural sprayers and fertilizer applicators

7. Mining & Tunneling:

• Mining machinery and rock drills - auxiliary systems

• Tunneling equipment and roadheader auxiliary functions

8. Specialty Applications:

• Municipal vehicles (sweepers, refuse trucks)

• Snow removal equipment

• Marine hydraulics and deck machinery