Rexroth A4VSG Axial Piston Variable Pump Closed Circuit Hydraulic Pump

A4VSG500EO2K30LPPH10H029F Rexroth Closed Loop Hydraulic Piston Pump for Heavy Machinery

Key Features 

1. Closed circuit variable axial piston pump

2. Displacement: 500 cm³/rev

3. Reversible flow & pressure side, over-center operation

4. Can operate as pump or motor

5. High power density, compact modular design

6. Low noise level, extended service life

7. Through-drive available for multi-pump combination

8. Visual swivel angle indicator

9. Drive shaft absorbs axial & radial loads

10. Short response time for precise control

11. Compatible with mineral oil & HF eco hydraulic fluid

Technical Specifications

Application Scenarios

• Heavy mobile machinery: pavers, large crawler track drives, telescopic handlers
• Agricultural machinery: combine harvesters, self-propelled sprayers
• Industrial equipment: extruder drives, test bench dynamometers, large fan drives
• Mining, marine and heavy engineering closed-circuit hydraulic system

Specification

Competitive Advantages

1. The Rexroth A4VSG500EO2K30LPPH10H029F adopts electronic EO control, which delivers fast and accurate flow regulation. It supports over-center reversible operation, can switch between pump and motor working modes freely, making it ideal for heavy-duty hydrostatic transmission systems with high dynamic response requirements.

2. This 500cc closed-loop axial piston pump features high power density and robust mechanical structure. It can continuously work under 350 bar rated pressure and withstand peak pressure up to 400 bar, with strong resistance to shock loads, greatly reducing downtime in mining, construction and large agricultural equipment.

3. Equipped with through-drive design, this A4VSG pump allows easy tandem pump assembly for multi-circuit hydraulic systems. It supports a wide range of hydraulic fluids including mineral oil and eco-friendly HF fluids, bringing flexible installation and fluid selection options for different project needs.

The Analysis for Rexroth A4VSG Axial Piston Pump Commom Breakdown:

1. Insufficient output flow or weak power output is a common failure. This problem is usually caused by worn cylinder block, piston shoes or valve plate, leading to internal leakage. Contaminated hydraulic oil is the primary trigger for premature wear of internal friction pairs.

2. Abnormal noise and vibration during pump operation often occur. It may result from oil shortage, air entering the closed circuit, damaged bearings or loose mounting bolts. Continuous air entrainment will accelerate component damage and shorten the service life of the pump.

3. Poor control response or unstable swashplate angle is frequently seen on EO electronically controlled models. The main causes include faulty electronic control valve, damaged displacement sensor or blocked control oil passage. It will lead to unstable speed and poor working performance of the whole hydrostatic drive system.