Replacement Variable Axial Piston Pump for Sauer 90L130 Series

Replacement Variable Axial Piston Pump for Sauer 90L130 Series

2 month ago

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

 4 year year

Product details

Replacement Variable Axial Piston Pump for Sauer 90L130 Series

1. Product Overview

This replacement variable axial piston pump is designed as a direct interchange spare part for Sauer 90L130 series hydraulic pump. It adopts swashplate variable displacement structure, fully matching the original installation dimensions, shaft parameters, port layout and control interface of Sauer 90L130 series.

Developed for heavy-duty mobile machinery hydraulic systems, the pump can realize continuous adjustment of output flow according to load demand. It is an economical aftermarket alternative to the original Sauer pump, suitable for equipment maintenance and renovation.

Model Code Explanation

- 90 Series: Sauer classic heavy-duty axial piston pump platform

- L: Left rotation direction

- 130: Nominal displacement 130 cc/rev

2. Main Technical Parameters

Item Specification

Pump Type Swashplate variable displacement axial piston pump

Nominal Displacement 130 cc/rev

Rated Working Pressure 35 MPa

Maximum Peak Pressure 42 MPa

Allowable Rotation Speed 2300 rpm (max)

Control Options Pressure cut-off, load sensing, horsepower control (consistent with original pump)

Shaft Specification Interchangeable with Sauer 90L130 standard drive shaft

Port Configuration Identical oil port position and thread size as original unit

Applicable Fluid ISO VG46 / VG68 anti-wear hydraulic oil

Operating Temperature -20℃ ~ +90℃

Standard Seals NBR; FKM high-temperature seals optional

3. Working Principle

Driven by the engine, the cylinder block rotates together with piston assemblies. The reciprocating movement of pistons completes oil suction and pressure output.

According to the signal from the hydraulic circuit, the control valve adjusts the tilt angle of the swashplate to change pump displacement and output flow. Load sensing and power limiting functions can be equipped to realize power matching, reduce overflow loss and lower system heat generation.

4. Core Advantages

1. Fully interchangeable with Sauer 90L130 series; no modification to pipeline, mounting bracket and control circuit.

2. Strictly optimized friction pair structure, stable volumetric efficiency under long-term heavy-load operation.

3. Multiple control modes available, consistent with original pump control logic.

4. High pressure resistance, strong overload capacity, adaptable to harsh construction working conditions.

5. Short delivery cycle and competitive cost compared with imported original Sauer spare parts.

6. Compact structure, convenient disassembly and on-site maintenance.

5. Application Range

This interchange axial piston pump serves as the main power source of hydraulic system, widely used in concrete mixers, cement transport trucks, large loaders, road construction machinery, drilling rigs and other mobile heavy equipment originally equipped with Sauer 90L130 pumps.

6. Common Faults & Replacement Suggestion

Typical failures: Insufficient system pressure, slow actuator movement, excessive internal leakage, abnormal knocking noise, shaft seal leakage.

Before installation, thoroughly clean the hydraulic pipeline and replace filter elements. Check hydraulic oil cleanliness regularly. Replace the complete pump assembly once internal friction parts suffer severe wear.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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4 year

Address: Ningbo, China

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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