RexrothA7VO107LR63L-NPB01 Axial Piston Variable Pump, Bent Axis Hydraulic Pump for Open Circuit

A7VO 107 LR63L-NPB01 350bar High Pressure Variable Piston Pump for Concrete Mixer & Mobile Construction Machinery

Key Features

· Bent-axis axial piston variable pump for open circuit

· LR power control, adjustable under running condition

· Displacement: 107 cm³

· Nominal working pressure: 350 bar, max peak pressure:400 bar

· Flow proportional to drive speed & displacement, infinitely variable

· Heavy-duty bearing system, high stability & long service time

· Suitable for self-priming or tank pressurization installation

· Available as original or aftermarket replacement hydraulic pump

Technical Parameters

Specifications

Application Scenarios

· Concrete mixer truck / Cement mixer

· Mobile crane

· Heavy-duty mobile construction machinery

· Forestry machinery

· Waste handling equipment

· Other mobile open-circuit hydrostatic drive systems 

Competitive Advantage:

1. This Rexroth A7VO107LR/63L-NPB01 variable piston pump adopts LR constant power control. It automatically adjusts displacement with load to prevent engine overload. It achieves remarkable energy saving under fluctuating load conditions such as concrete mixers and shredders and reduces fuel consumption.
2. It features compact size and high power density with excellent shock resistance. Its internal friction pairs are precisely machined. It can run steadily for a long time in harsh dusty and heavy-duty environments, cutting unexpected breakdowns and extending service life.
3. With industry-standard mounting dimensions and readily available spare parts, it is compatible with concrete mixers, waste recycling shredders and other engineering machinery. Easy for replacement and maintenance, it is a preferred hydraulic power component for equipment repair and retrofit.

The Analysis For Rexroth A7VO Axial Piston Pump Common Breakdown: 

1. Insufficient pump flow leads to slow equipment movement. It is generally caused by worn valve plate and piston slippers, or blocked suction line with excessive suction resistance. This will directly result in weak output of actuators and lower overall working efficiency.
2. Abnormal noise and vibration occur while the pump is running. It is often triggered by contaminated hydraulic oil, air ingression or worn bearings. Continuous vibration and noise will scratch internal precision parts rapidly, and may lock up the pump in severe cases.
3. Unstable system pressure and weak load capacity. It mainly comes from stuck or worn spool of LR control valve, or internal leakage caused by aging seals. The pump cannot build stable pressure and fail to meet heavy-duty operation requirements.