LPV90 Series Harvesting Machinery Hydraulic Transmission System Long Life

Product Description

Highland LPV90 series harvesting machinery Hydraulic transmission system long life

· cast iron housing

· hydraulic components

· Power components of hydraulic systems

· higher efficiency

· Simple layout

· System Solutions

· work fast

· Fully replace imported products

· Patent certificate certification

· 1 year warranty

· Application rice harvester

· Category Variable displacement axial piston pump

Highland Hydraulic Motor Pump System System Solutions information:

Highland hydraulic transmission system is a crucial component in agricultural harvesting machinery, widely used in combine harvesters, mowers, and field transport vehicles. The system transfers and regulates power by transmitting fluid pressure, offering advantages such as high transmission efficiency, compact structure, and flexible operation.

Highland hydraulic transmission system mainly consists of the following components:

Hydraulic pump: As the power source of the hydraulic system, the pump converts mechanical energy into hydraulic energy, outputting oil with a certain pressure to drive the entire hydraulic system.

Hydraulic cylinder or hydraulic motor: Serving as actuators, hydraulic cylinders facilitate linear motion, while hydraulic motors enable rotational motion, converting hydraulic energy into mechanical energy.

Hydraulic valve: As a control component, hydraulic valves regulate the valve opening degree, enabling the switching of oil circuits and the adjustment of oil pressure and flow, thus controlling the speed, force, and direction of the actuators.

Oil circuit: The oil circuit is the pipeline that transports oil in the hydraulic system, connecting various components and facilitating oil circulation and pressure transfer.

Specifications:

Hydraulic Motor Pump System technical parameter

Hydraulic Motor Pump System notices:

o ensure the safe and efficient operation of the hydraulic transmission system in harvesting machinery, consider the following precautions:

Regular inspection and maintenance: Periodically check the hydraulic pump, valves, cylinders or motors, oil circuits, and auxiliary components for wear, damage, or leaks. Perform routine maintenance to prolong the system's service life and maintain optimal performance.

Use appropriate hydraulic fluid: Select hydraulic fluid with suitable viscosity and temperature range for the specific application and operating conditions. Ensure that the fluid is clean and free from contamination to prevent damage to components and reduce system efficiency.

Monitor fluid levels and temperature: Regularly check the hydraulic fluid level in the oil tank, and refill as necessary to maintain the recommended level. Also, monitor fluid temperature to prevent overheating, which could damage the components and degrade the fluid's properties.

Ensure proper filtration: Install and maintain high-quality oil filters to remove contaminants from the hydraulic fluid, preventing damage to the system components and reducing wear.

Avoid overloading: Do not exceed the hydraulic system's rated capacity, as overloading can cause damage to components and reduce system efficiency. Be aware of the load during operation and make adjustments as needed.

Operate with caution: Operators should be well-trained and familiar with the harvesting machinery's controls and functions. Always follow the manufacturer's guidelines for safe operation to prevent accidents and damage to the equipment.

Hydraulic Motor Pump System use:

Mixer truck: concrete mixer truck, cement mixer truck;

Coal mining machinery: scraper;

Industry: pharmaceutical machinery;

Transport vehicles: road rollers, concrete pump trucks, stabilized soil mixers

Factory Production & Inspection Evidence

The LPV90-MA-R-23 is produced by Shandong Highland Hydraulic Seiko Co., Ltd., with the produced units recorded 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

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

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 referenced documents are kept on file with the unit's component number.

Hydraulic Motor Pump System faq

Q1. Can I have a sample order for hydraulic motor pump system?

A: Yes, we welcome sample order to test and check quality.

Q2. What about the hydraulic motor pump system lead time?

10 to 15 days for samples, mass production according to MOQ

Q3. Do you have any MOQ limit for hydraulic motor pump system?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the hydraulic motor pump system and how long does it take to arrive?

Ship by sea, it generally takes 15-20 days to arrive, and air is also optional.

Q5. How to proceed an order for hydraulic motor pump system

A: Firstly let us know your requirements or application.

Secondly We quote according to your requirements or our suggestions.

Thirdly customer confirms the samples and places deposit for formal order.

Fourthly We arrange the production.

Q6: Do you offer guarantee for the hydraulic motor pump system?

A: Yes, we offer 1 years warranty to our products.

Q7: How to deal with the faulty hydraulic motor pump system?

Firstly, our products are produced in strict quality control system.Secondly, we will inspect the defective pump and motor, and then respond according to the actual situation.