LPV90 Axial Piston Pumps High-Performance for Industrial and Construction Machinery

Product Description

LPV90 Axial Piston Pumps High-Performance for Industrial and Construction Machinery

Hydraulic variable displacement axial piston pumps application range:

Variable displacement axial piston pumps introduction:

Our Hydraulic Piston Motors are a testament to precision engineering. Built for high-efficiency operations, they are the heart of demanding industrial and construction machinery. These motors stand out for their ability to provide consistent, high-power output and refined control, making them essential for applications where performance and reliability are key.

Hydraulic axial piston pumps main features:

1. Variable displacement axial piston hydraulic pumps

2. Axial piston hydraulic pumps have swash plate structure

3. Be suitable for hydrostatic transmissions with closed-loop circuit

4. Manual servo and hydraulic variable control

5. Axial piston hydraulic pumps with a charging oil pump

6. LPV90 hydraulic variable displacement axial piston pump 

7. Hydraulic piston pump 42Mpa high pressure 

LPV90 Axial piston pumps technical specification:

Factory Production & Inspection Evidence

The LPV90-MA-R-23 is manufactured by Shandong Highland Hydraulic Seiko Co., Ltd., and production is documented for traceability. The supplied project record lists a production quantity of 100 units, and the factory test report identifies the tested unit by Component No. 02604200203002.

• LPV – LPV series closed axial piston pump
• 90 – 90 mL/r displacement
• MA – manual servo control
• R – clockwise rotation
• 23 – 23-tooth input shaft (16/32 pitch)

Evidence type: factory production / product identification.

Factory Performance Testing

Closed-loop hydraulic pump test-bench results are recorded for the LPV90-MA-R-23. The test documentation records Component No. 02604200203002, a test on 2026/4/20 at 9:12, a test temperature of 22.7 °C and a power recovery ratio of 50%. Rated displacement is 90.5 mL/rev and rated pressure is 35 MPa; the test-bench main parameters are a maximum speed of 3200 r/min and a maximum pressure of 42 MPa.

Recorded Test Data

For the LPV90-MA-R-23, the closed-loop report logs speed, pressure, flow, displacement, torque, input power, output power, overall efficiency, volumetric efficiency and charge pressure. Selected recorded points are shown for reference.

Charge pressure: 1.7 MPa; charge flow 22.4 L/min. Figures are reproduced from the original test record; interpretation should follow the test-bench measurement and calculation method.

Engineering Drawing & Dimensions

The LPV70/90-MA-R/L-21/23/14-NN engineering drawing provides the mounting flange, output shaft spline, hydraulic port, control interface and rotation-direction data for the LPV90-MA-R-23. Key interface information includes:

• High pressure ports A and B; leakage ports L1 / L2; oil suction port S
• High pressure relief valves A / B; low pressure relief valve
• Pressure taps Ma / Mb: 9/16-18; servo-cylinder pressure taps (both sides): 9/16-18
• Input shaft spline options: 21 teeth (16/32 pitch), 23 teeth (16/32 pitch), 14 teeth (12/24 pitch), 30° pressure angle
• Input shaft dividing circle diameters: Ø33.34 mm (21T) / Ø36.5 mm (23T) / Ø29.63 mm (14T)
• Control handle spline: 1/4-20 UNC-2A, 24 teeth, diametrical pitch 64/128, OD 9.5 mm (SAE 1963)
• Mounting: 4 bolts M12, 25 mm depth; ports L1 / L2 1 1/16-12; port S 1 5/16-12; relief valve options 32 / 35 / 40 MPa; charge/suction pressure 1.8–2.4 MPa
• Rotation direction R (clockwise) / L (anticlockwise)

Drawing technical requirement: minimum speed 500 r/min, maximum speed 3000 r/min, rated working pressure 30 MPa. Interface dimensions should be confirmed against the engineering drawing before installation.

Quality Control & Final Inspection

Quality control documentation for the LPV90-MA-R-23 is based on product identification, factory test records and engineering specifications. The test report documents the pump's displacement, pressure, speed, flow and output power recorded during closed-loop testing.

• Product model identification
• Hydraulic pump performance testing
• Pressure and speed verification
• Flow and displacement recording
• Torque and power measurement
• Overall and volumetric efficiency recording
• Engineering interface verification

Dimensional inspection · surface and finish inspection · assembly inspection · leakage inspection · rotation (R / L) inspection · port and interface inspection · final inspection before packing.

Project Reference

A project record documents the model for a customer located in Belarus. The record lists Shandong Highland Hydraulic Seiko Co., Ltd. as manufacturer, a quantity of 100 units and a rye harvester application.

• Project: Variable Piston Pump for Belarus
• Model: LPV90-MA-R-23
• Quantity: 100 units
• Application: Rye harvester
• Client: Belarus
• Manufacturer: Shandong Highland Hydraulic Seiko Co., Ltd.
• Drive configuration: Closed circuit hydraulic system

Technical Documents

Technical documents available for the LPV90-MA-R-23 include:

The documents provide displacement, speed, pressure, torque, power, temperature and weight data, confirming the LPV90 as a closed axial piston pump. The listed documents are archived alongside the unit's component number.

FAQ of variable displacement axial piston pumps: 

Q1: Are you a manufacturer?

A: Yes, we are manufacturer to produce, design and test axial piston hydraulic pumps by ourselves.

Q2: How do you ship the goods and how long does it take to arrive?

A: Ship by air express, it takes 3-5 days to arrive. Airline and sea shipping also optional.

Q3: Do you offer guarantee for the products?

A: Each motor or pump should be tested before shipping, test report can be sent if requested.

Warranty 12 months after shipment for complete assembly.

Q4: What are the payment terms?

A: Full order: 30% as deposit, balance before shipment.

Small order/sample order: Full advance payment.

Q5: Do you test all piston pumps before shipment?

A: Yes, we have 100% test before shipment, we must guarantee pumps quality. 

Whatsapp/wechat/phone:+86 18678785446

E-mail:ld@hldhydraulic.com

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