Cotton Harvester Axial Piston Pump 42Mpa Long Lifetime Hydraulic Pump

Product Description

Forage silage harvester hydraulic piston pumps long lifetime

Hydraulic piston pumps product description:

Highland hydraulic piston pumps are the power component of the hydraulic system. Its function is to supply the oil with a certain flow and pressure to the system, so it is also the core component of the hydraulic system.

Highland hydraulic piston pump is divided into axial piston pump and radial piston pump according to the structure. Our hydraulic piston pumps are axial piston pumps.

Hydraulic piston pumps features:

• Hydraulic piston pumps can be connected with other additional pumps.
• When Hydraulic piston pumps operated mechanically, the servo displacement can control and keep the angle of swash plate and pump displacement.
• Upon release of the control handle, swash plate return to zero position automatically and the flow reduces to zero.
• Hydraulic piston pumps have shaft oil seals performance, even at the lowest temperature and high case pressure.

Hydraulic piston pumps technical specification:

Hydraulic piston pumps usage:

a. Piston pumps are widely used in high-pressure, high-flow, high-power systems and occasions where the flow needs to be adjusted, such as agricultural machinery, construction machinery, mining and metallurgical machinery, and ships. It can play an important role.

b. Piston pumps are used in petroleum exploration and development, petrochemical, pharmaceutical, atomic energy science, environmental science, process equipment, experimental equipment, etc.

Hydraulic piston pumps notices:

The service life of the piston pump is related to the usual maintenance, the quantity and quality of the hydraulic oil, and the cleanliness of the oil. It is also an effective way to prolong the life of the piston pump to avoid the wear and tear of the friction pair of the plunger pump caused by the particles in the oil. The higher the cleanliness of the hydraulic oil, the longer the service life of the hydraulic pump.

Tags: hydraulic piston pumps, harvester hydraulic piston pumps, piston pumps

Application / Project Evidence

Variable Piston Pump Project — Concrete Mixer Trucks

A hydraulic pump project for concrete mixer trucks in Malaysia documents the HPV50-MA-R-21 in a real application.

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
• Maximum displacement: 50 mL/rev
• Rated working pressure: 35 MPa
• Maximum transient pressure: 42 MPa
• Continuous working pressure: 30 MPa
• Maximum continuous working speed: 3500 r/min

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

This reference shows the documented use of the HPV50 series in concrete mixer truck equipment and offers application-specific technical evidence to customers assessing the pump for comparable 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

The results captured during factory performance testing of the HPV50-MA-R-21 pump are shown below.

Conditions of the test:

• Test temperature — 31.4°C
• Rated displacement — 50 mL/rev
• Rated pressure — 35 MPa
• Max pressure — 42 MPa
• Max speed — 3500 r/min
• Charge pressure — 1.6 MPa
• Charge flow — 12.4 L/min

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

Engineering Drawing

Detailed engineering drawings are available for the HPV50-MA-R-21 closed-loop axial piston pump.

The engineering drawing provides dimensional and interface information required for system integration, including overall mounting dimensions, shaft and spline specifications, hydraulic ports, leakage ports, pressure test ports, control-handle dimensions and control positions.

The drawing also identifies the pump rotation direction and corresponding pressure-port configuration for clockwise and counterclockwise operation.

Key interface information includes:

• Product model: HPV50-MA-R-21
• Rated displacement: 50 mL/rev
• Main ports: A and B
• Leakage ports: L1 and L2
• Oil suction port: S
• Pressure/test port: M
• Control options: Manual / Electric Proportional Servo / Hydraulic Servo
• Input shaft spline configurations according to the selected model
• SAE-related control and shaft dimensions

Engineering drawings can be used by hydraulic system designers to verify mounting, shaft connection, port configuration and installation requirements before ordering.

Quality Control & Inspection

The HPV50-MA-R-21 undergoes quality control that checks product configuration, dimensional requirements and hydraulic performance before dispatch.

In the factory test record for the tested unit, the manufacturer, component model, component number, rated displacement, rated pressure, maximum pressure and test temperature are identified. Performance inspection includes operating speed, pressure, flow, displacement, input torque, input power, output power, overall efficiency and volumetric efficiency.

Dimensional and interface information for the pump body, hydraulic ports, leakage ports, shaft spline and control mechanism is contained in the engineering documentation.

Configuration records, engineering documentation and recorded performance data together provide traceable technical evidence for the delivered hydraulic pump.

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 offers engineering support covering hydraulic pump selection, configuration and system integration.

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

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

By sharing their machine operating conditions and hydraulic system requirements, customers can obtain technical guidance on a suitable HPV series configuration.