Agricultural Harvester Axial Piston Pumps Variable Displacement Hydraulic Pump

Product Description

Agricultural harvester axial piston pumps lifetime technical support​
 
Agricultural axial piston pumps basic introduction: 
 
Agricultural axial piston pumps are becoming more and more common in agricultural industry, because hydraulic power could improve production efficiency, save labour and time, and bring much convenience to agricultural machinery. Our engineers are able to configure hydraulic pumps flexibly to meet the different needs of agricultural equipment.

Agricultural harvester axial piston pumps main features:
 

• Variable displacement axial piston pumps
• Widely for agricultural machinery
• Connect additional pumps
• Swash plate structure
• Big displacement
• High efficiency
• High pressure
• Simple layout
• More stable
• Low failure
• Big torque
• Highland company has 20 years’ experience in hydraulic industry, could help solve all problems of hydraulic users.

 
Agricultural axial piston pumps usage: 
 
With the improvement of science and technology, nowadays agricultural hydraulics are becoming more and more common, our hydraulic pumps motors could make hydraulic farming easy, which are used for kinds of agricultural equipment, such as combine harvesters, grass mower, tractors, sprayers, track loaders, forage harvesters etc farming machinery.
 
Hydraulic oil notice of axial piston pumps: 
 

Hydraulic oil: The ability of hydraulic drives to maintain ideal performance and achieve life expectancy depends on the quality of the liquid operating in the unit. Liquid quality can be measured in three common categories: lubrication capacity, impurities, and temperature. Field experience shows that most drives fail due to the damaged surface of liquid quality, mainly solid particles impurities and overheating. Users of hydraulic pumps should choose correct hydraulic oils and maintain promptly.

Company service of axial piston pumps: 
 
Highland is a technology-led production-oriented enterprise. With its reputation for high-quality and cost-effective products,  it has won many favors at home and abroad. Meantime Highland owns a production base of 7000 square meters, independent research and development, production and factory direct sales.

• Factory direct sale and factory price
• Warranty 1 year for hydraulic pumps motors
• Excellent after-sales service
• Strict quality control system
• Each pump motor 100% test before shipment
• Lifetime technical support

Application / Project Evidence

Variable Piston Pump Project for Concrete Mixer Trucks

The HPV50-MA-R-21 is documented in a hydraulic pump project for a concrete mixer truck application in Malaysia.

Project details:

• Project: Variable Piston Pump for Malaysia
• Manufacturer: Shandong Highland Hydraulic Seiko Co., Ltd.
• Pump model: HPV50-MA-R-21
• Quantity: 50 units
• Application: Concrete Mixer Trucks
• Hydraulic circuit: Closed Circuit Hydraulic System
• Max. displacement: 50 mL/rev
• Rated working pressure: 35 MPa
• Max. transient pressure: 42 MPa
• Continuous working pressure: 30 MPa
• Max. continuous working speed: 3500 r/min

Supporting the project documentation are product technical parameters, engineering drawings and a factory performance test report for the HPV50-MA-R-21.

This project reference demonstrates the documented application of the HPV50 series in concrete mixer truck equipment, and provides application-specific technical evidence for customers evaluating the pump for similar hydraulic systems.

Factory Performance Testing

Before dispatch, every HPV50-MA-R-21 closed-loop axial piston pump undergoes a controlled performance test to confirm its principal operating characteristics.

The unit tested was run on 14 September 2026 at a test temperature of 31.4°C, with a rated displacement of 50 mL/rev, a rated pressure of 35 MPa and a peak pressure of 42 MPa.

The test captured pump speed, outlet pressure, flow rate, displacement, input torque, input power, output power, overall efficiency and volumetric efficiency. Each report names the component model HPV50-MA-R-21 and carries a unique component number for full traceability.

This gives engineers and buyers product-specific measured data instead of relying solely on nominal catalogue figures.

Recorded Test Data

Recorded on the factory test bench, the data for the HPV50-MA-R-21 hydraulic pump are presented in the following table.

Test conditions were as follows:

• 31.4°C test temperature
• 50 mL/rev rated displacement
• 35 MPa rated pressure
• 42 MPa maximum pressure
• 3500 r/min maximum speed
• 1.6 MPa charge pressure
• 12.4 L/min charge flow

Data source: HPV50-MA-R-21 factory test report, component No. 02609140203023.

Engineering Drawing

Engineering drawings with full dimensions are supplied for the HPV50-MA-R-21 closed-loop axial piston pump.

They provide the dimensional and interface information necessary for system integration: overall mounting dimensions, shaft and spline specifications, hydraulic ports, leakage ports, pressure test ports, control-handle dimensions and control positions.

The drawings additionally specify the rotation direction and the pressure-port configuration for both clockwise and counterclockwise operation.

Key interface data include:

• HPV50-MA-R-21 product model
• 50 mL/rev rated displacement
• Ports A and B (main)
• Ports L1 and L2 (leakage)
• Port S (oil suction)
• Port M (pressure/test)
• Control: Manual / EP servo / Hydraulic servo
• Input shaft spline configuration by model
• SAE-related control and shaft dimensions

Hydraulic system designers can use these drawings to check mounting, shaft connection, port configuration and installation requirements before ordering.

Quality Control & Inspection

Quality control of the HPV50-MA-R-21 verifies product configuration, dimensional requirements and hydraulic performance prior to shipment.

For the unit tested, the factory record identifies manufacturer, component model, component number, rated displacement, rated pressure, maximum pressure and test temperature. Performance inspection comprises operating speed, pressure, flow, displacement, input torque, input power, output power, overall efficiency and volumetric efficiency.

Engineering documentation additionally supplies dimensional and interface information for the pump body, hydraulic ports, leakage ports, shaft spline and control mechanism.

The result is traceable technical evidence for the supplied hydraulic pump, combining configuration records, engineering documentation and recorded performance data.

Technical Documents

Technical documentation is available to support product evaluation, hydraulic system design and installation planning for the HPV50-MA-R-21.

Available technical information includes:

• HPV50-MA-R-21 Technical Parameters
• Factory Performance Test Report
• Engineering Drawing
• Mounting and Overall Dimensions
• Hydraulic Port Configuration
• Input Shaft and Spline Specifications
• Control Handle and Servo Control Information
• Rotation Direction Configuration
• HPV Series Technical Parameter Table
• Model Selection Information

The HPV50-MA-R-21 technical documentation specifies a maximum displacement of 50 mL/rev, rated working pressure of 35 MPa, maximum transient working pressure of 42 MPa, continuous working pressure of 30 MPa and a minimum continuous operating speed of 500 r/min.

For engineering evaluation, customers can request the applicable technical documents and product-specific test information from Highland.

Engineering Team

Highland supplies engineering support for hydraulic pump selection, configuration and system integration.

For the HPV series, this support can address displacement selection, pressure and speed requirements, control configuration, rotation direction, shaft and mounting interfaces, hydraulic port configuration and application-specific requirements.

For the HPV50-MA-R-21, available engineering documentation defines the displacement, operating pressure, speed range, torque and power characteristics, control options, shaft spline information, port configuration and installation dimensions.

Customers who provide their machine operating conditions and hydraulic system requirements can receive technical guidance on selecting a suitable HPV series configuration.

FAQ of agriculture axial piston pumps:

 
Q1:  Could I have a sample order?
A:  Yes, we welcome sample order to test and check quality.
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:  Are you manufacturer?
A:  We are a manufacturer with own plant and 20 years experiences, manufacturing agricultural hydraulic pumps motors.

Tags: agricultural hydraulic pumps, axial piston pumps, harvester axial piston pumps