Rexroth A8VO Series Excavator Axial Piston Fixed Pump Hydraulic Pump Accessories

Rexroth A8VO Series Excavator Axial Piston Fixed Pump Hydraulic Pump Accessories

The rexroth A8VO hydraulic spare parts stand out for their precise adaptation. They are developed based on the original A8VO pump design parameters, which can perfectly fit the pump body without modification. When replacing a worn piston, the rexroth A8VO hydraulic spare piston can restore the pump's volumetric efficiency to over 90%, avoiding the problem of reduced output caused by mismatched parts. This is crucial for excavators that need to complete high-precision operations such as loading and unloading materials.​

Rexroth hydraulic pump spare parts also have excellent durability. The metal parts such as valve plates and bearing bushes are made of high-strength alloy steel, with a surface hardness of HRC 58 after heat treatment, which can resist wear caused by long-term friction. The seals in the rexroth hydraulic pump spare parts use a composite material that is resistant to aging and high pressure, maintaining good sealing performance even after 8,000 hours of operation. For excavators working in harsh environments such as mines and construction sites, this durability can reduce the frequency of maintenance and downtime.​

Comprehensive Parts Coverage: The accessories set includes a full range of rexroth A8VO hydraulic spare parts such as pistons, cylinder blocks, seals, and valve plates, as well as common rexroth hydraulic pump spare parts like springs and retaining rings. This one-stop solution avoids the trouble of purchasing parts separately and improves maintenance efficiency.​

Easy Installation: Each rexroth A8VO hydraulic spare part is marked with a clear installation position, and the matching installation tools can help technicians quickly complete the replacement. Even for operators with limited experience, it can reduce the difficulty of operation and shorten the maintenance time by 30% compared to using non-specialized parts.​

Strong Environmental Adaptability: Rexroth hydraulic pump spare parts can work stably in a wide temperature range (-20°C to 80°C), adapting to the cold northern construction sites and hot southern mining areas. Their corrosion resistance also ensures that they are not affected by moisture, dust, and other factors, maintaining good performance for a long time.

Model: A8VO55, A8VO80,A8VO107,A8VO140,A8VO160,A8VO200

The fundamental reason for the lack of pressure in the oil circuit control of the plunger pump?

The malfunction phenomenon of the plunger pump system is that when the solenoid valve in the electro-hydraulic valve is reversed, the hydraulic direction change threshold does not operate, and the hydraulic system is detected. When the system is not working, the pressure oil from the plunger pump is directly returned to the oil tank through the middle position of the hydraulic valve in the electro-hydraulic valve, and there is no back pressure in the return oil circuit. Check the slide valve core of the hydraulic valve, it moves normally without any jamming phenomenon.

Because the electro-hydraulic valve is externally controlled and returns oil, in the control oil circuit of the medium and low pressure electro-hydraulic valve, the oil generally must have a pressure of 0-2-0.3 MPa for controlling the oil circuit and operating the hydraulic valve. When starting the system, due to the fact that the pump outputs oil directly back to the oil tank through the ^ - type hydraulic valve, there is no pressure in the control oil circuit of the electro-hydraulic directional valve. When the ATOS solenoid valve in the electro-hydraulic valve is reversed, the control oil cannot push the hydraulic valve to change direction, so the hydraulic valve in the electro-hydraulic valve does not operate. The characteristics of variable piston pump: The pump is equipped with two relief valves on the high-pressure oil side to protect the hydrostatic transmission device (pump and motor) from overload.

A8VO107LA1KH1/60R1-NSG05K04

A8VO107LA0H2/63R1-NZG05K010-K

A8VO107LA0H2/63R1-NZG05K020

A8VO107LA0H2/63R1-NZG05K020-K

A8VO107LA0K/63R1-NZG05F011

A8VO107LA0K/63R1-NZG05F011-K

A8VO107LA0K/63R1-NZG05F021

A8VO107LA0K/63R1-NZG05F021-K

A8VO107LA0K/63R1-NZG05F041

A8VO107LA0K/63R1-NZG05F041-K

A8VO107LA0K/63R1-NZG05K000

A8VO107LA0K/63R1-NZG05K070

A8VO107LA0K/63R1-NZG05K070-K

A8VO107LA0KH1/63R1-NZG05F001

A8VO107LA0KH1/63R1-NZG05F041

A8VO107LA0KH1/63R1-NZG05K020

A8VO107LA0KH1/63R1-NZG05K070

A8VO107LA0KH2/63R1-NZG05F001

A8VO107LA0KH2/63R1-NZG05F011

A8VO107LA0KH2/63R1-NZG05F011-K

A8VO107LA1H2/63R1-NZG05F011

A8VO107LA1H2/63R1-NZG05F013

A8VO107LA1H2/63R1-NZG05F013-K

A8VO107LA1H2/63R1-NZG05F044

A8VO107LA1H2/63R1-NZG05F044-K

A8VO107LA1H2/63R1-NZG05F044-S

A8VO107LA1H2/63R1-NZG05F070

A8VO107LA1H2/63R1-NZG05F070-K

A8VO107LA1H2/63R1-NZG05F070-S

A8VO107LA1H2/63R1-NZG05F070-SK

A8VO107LA1H2/63R1-NZG05F071-S

A8VO107LA1H2/63R1-NZG05F074

A8VO107LA1H2/63R1-NZG05F074-K

A8VO107LA1H2/63R1-NZG05F610

A8VO107LA1KH1/60R1-NSG05F00

A8VO107LA1KH1/60R1-NSG05F000

What is the oil return process of the plunger pump?

The amount of fuel supplied per cycle by the plunger pump depends on the stroke of the fuel supplied, which is variable without being controlled by the camshaft. The start time of fuel supply does not change with the change of fuel supply stroke. Turning the plunger can change the timing of the end of fuel supply, thereby changing the amount of fuel supplied. When the plunger pump is working, the cam on the camshaft of the fuel injection pump and the plunger spring force the plunger to move back and forth, thereby completing the pumping task. The pumping process can be divided into the following two stages. During the return oil process of the plunger pump, the plunger supplies oil upwards. When the inclined groove (stop supply side) on the plunger is connected to the return oil hole on the sleeve, the low-pressure oil circuit in the pump oil chamber communicates with the middle hole, radial hole, and inclined groove on the plunger head. The oil pressure suddenly drops, and the oil outlet valve quickly closes under the action of the spring force, stopping the supply of oil. Afterwards, the plunger will continue to move upwards. When the protruding part of the cam rotates, under the action of the spring, the plunger will move downwards again. At this point, the next cycle begins. The plunger pump is introduced based on the principle of a plunger. There are two one-way valves on a plunger pump, which are in opposite directions. When the plunger moves in one direction, negative pressure occurs in the cylinder. At this time, one one-way valve opens and the liquid is sucked into the cylinder. When the plunger moves in the other direction, the liquid is compressed and the other one-way valve opens, and the liquid sucked into the cylinder is discharged. This working mode forms continuous fuel supply after continuous movement. German A6VE Plunger Pump Price Plunger Pump Maintenance: Check for scratches and rust on the plunger, and replace it with a new one if necessary.

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