How to Improve Diesel Excavator Efficiency by Replacing with High-Precision Rexroth Parts?

How to Improve Diesel Excavator Efficiency by Replacing with High-Precision Rexroth Parts?

1. Background

In heavy-duty diesel excavators and rotary drilling rigs, the hydraulic pump—often a Rexroth A8VO model like A8VO160—serves as the operational core. Its performance directly influences machine efficiency and uptime. These pumps are widely used in models like CAT Diesel 330/345, Daewoo DH370, and SANY rigs.

2. Common Efficiency Issues

• Unstable Pressure Output: Caused by worn pistons and valve plates.

• Slow System Response: Due to aging control pistons.

• Low Thermal Efficiency: Resulting from increased internal friction and energy loss.

3. Advantages of High-Precision Rexroth Components

• Tighter Tolerances: Ensure better piston-cylinder fitting and minimal leakage.

• Advanced Heat Treatment: Extends part life and reduces service frequency.

• Hardened Coatings: Increase wear resistance in challenging field conditions.

4. Performance Comparison

5. Replacement Advice

For high-load, continuous operation sites, it's recommended to inspect major hydraulic components every 1000 working hours. Opt for genuine Rexroth or precision-matched aftermarket parts to maintain optimal performance and reliability.