High Pressure LPV90 Axial Piston Pump with Charging Oil Pump for Optimal Operation

Product Description

High Pressure LPV90 Axial Piston Pump with Charging Oil Pump for Optimal Operation

Variable displacement axial piston pumps introduction:

Maximize the potential of your hydraulic systems with our axial piston pump technology. Our pumps are designed for those who demand the best in hydraulic power and efficiency. With a focus on advanced fluid dynamics, our pumps provide smooth, consistent power output, ensuring your machinery operates at its best. Whether for industrial or mobile applications, our axial piston pumps are the key to unlocking unparalleled hydraulic performance.

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:

Notices:

Maintain the peak performance of your axial piston pumps by ensuring the efficiency of the hydraulic oil cooling system. Overheating can reduce the efficiency of your pump and degrade hydraulic fluid, leading to potential system damage. Regular inspections and cleaning of the cooling system help maintain optimal operating temperatures, preserving pump integrity and enhancing overall system performance.

Factory Production & Inspection Evidence

The LPV90-MA-R-23 pump is produced and identified under factory documentation from Shandong Highland Hydraulic Seiko Co., Ltd. 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

Factory performance testing of the LPV90-MA-R-23 is carried out on a closed-loop hydraulic pump test bench. 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

The closed-loop report records speed, pressure, flow, displacement, torque, input power, output power, overall and volumetric efficiency, and charge pressure for the LPV90-MA-R-23. Selected test points are listed for reference.

Charge pressure: 1.7 MPa; charge flow 22.4 L/min. All values are taken directly from the original test record and depend on the test-bench measurement and calculation method.

Engineering Drawing & Dimensions

Interface information for the LPV90-MA-R-23 is given in the supplied LPV70/90-MA-R/L-21/23/14-NN engineering drawing, covering the mounting flange, output shaft spline, hydraulic ports, control interface and rotation direction. 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

For the LPV90-MA-R-23, quality control combines product identification, factory test documentation 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

This pump model appears in the project record for a Belarus-based customer. 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:

These documents cover displacement, speed, pressure, torque, power, temperature and weight, and confirm the model as a closed axial piston pump. The referenced documents are kept on file with 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. 

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E-mail:ld@hldhydraulic.com

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