Forage Harvesters High Pressure Hydraulic Pumps For Agricultural Machinery

Product Description

 Highland Forage harvesters high pressure hydraulic pumps quality assurance 

Highland High pressure hydraulic pumps basic introduction: 

Highland High pressure hydraulic pumps are typical volumetric fluid machine, driven by the prime mover, converting the input mechanical energy into the pressure energy of the liquid, and then inputting it into the system in the form of pressure and flow. It is the hydraulic power source of the hydraulic system. Because it can transport liquids under high pressure, it is widely used in in agricultural machinery such as forage harvesters. 

Highland Forage harvesters high pressure hydraulic 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
• Full-featured
• More stable
• Low failure
• Big torque
• Highland company has 20 years’ experience in hydraulic industry, could help solve all problems of hydraulic users.

Highland High pressure hydraulic pumps usage: 

With the improvement of science and technology, nowadays Highland 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, forage harvesters, grape machinery, tractors, sprayers, track loaders etc farming machinery.

Hydraulic oil notice of Highland high pressure hydraulic pumps: 

The higher the cleanliness of the hydraulic oil, the longer the service life of the hydraulic pump.

Hydraulic oil:

Generally speaking, the replacement time of hydraulic oil of sealed oil tank system is 2000hours. If the hydraulic oil is contaminated or other outside material bears abnormal running condition, the hydraulic oil should be changed often.

Hydraulic oil in the open oil tank system should be changed every 500hours. For different vehicle, the measures should determined by specific design and operational experience.

Company service of Highland high pressure hydraulic pumps: 

Highland hydraulic 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

Factory Performance Testing

The HPV70-MA-R-21 comes with a documented closed-loop hydraulic pump performance test record.

The supplied factory report identifies the unit as HPV70-MA-R-21, rated at 70 mL/rev, and records a test performed on September 14, 2026 at 26.8°C.

Measured parameters include speed, pressure, flow, displacement, torque, input and output power, overall efficiency and volumetric efficiency, spanning pressures of about 5 MPa to 30.6 MPa.

Recorded Test Data

The table below lists performance values taken from the supplied closed-loop hydraulic pump test report for HPV70-MA-R-21.

Test Conditions

• Test Date: September 14, 2026
• Test Temperature: 26.8°C
• Rated Displacement: 70 mL/rev
• Rated Pressure: 35 MPa
• Maximum Pressure: 42 MPa
• Charge Pressure: 1.6 MPa
• Charge Flow: 21.9 L/min

The values above represent the documented factory test conditions. Actual operating performance may vary depending on hydraulic circuit configuration, fluid conditions, temperature and application conditions.

Engineering Drawing

HPV70 Engineering Drawing & Technical Documentation

The HPV70-MA-R-21 is backed by engineering documentation covering dimensional integration and hydraulic configuration.

The supplied engineering drawing identifies the control handle, maximum and zero displacement positions, hydraulic ports, leakage ports, oil suction port and pressure test point. It also provides shaft spline and control-handle information for mechanical integration.

Engineering Information Covered

• Overall mounting and dimensional information
• Control handle geometry
• Maximum displacement position
• Zero displacement position
• High-pressure ports A and B
• Leakage ports L1 and L2
• Oil suction port S
• Pressure test port M
• Servo cylinder pressure test point
• Input shaft spline configuration
• Control-handle spline information
• Pump rotation direction
• Control configuration information

The same drawing records the MA, EP and HS control configurations for the HPV series and identifies both clockwise and counterclockwise rotation options.

Engineering Integration

Before system integration, the selected displacement, control method, rotation direction, shaft configuration and hydraulic port arrangement should be checked against the applicable engineering drawing and application requirements.

Project Reference

Documented Project Reference — Kyrgyzstan Cotton Harvester

In the supplied project documentation, the HPV70-MA-R-21 is recorded within a variable piston pump project for Kyrgyzstan.

Project Details

The documented project specification identifies the HPV70 hydraulic pump with a maximum displacement of 70 mL/rev, a rated working pressure of 35 MPa, a continuous working pressure of 30 MPa and a transient maximum working pressure of 42 MPa.

This project reference is provided as documented application information drawn from the supplied project materials.

Technical Documents

HPV70-MA-R-21 Technical Documents

To support product evaluation, hydraulic system integration and model selection, the relevant technical documentation is available.

Available Technical Information

• HPV70-MA-R-21 Technical Parameters
  Product operating parameters including displacement, speed, pressure, torque, power, temperature and weight.
• HPV70/90 Engineering Drawing
  Dimensional and configuration information covering mounting dimensions, hydraulic ports, leakage ports, shaft configuration, control handle and rotation direction.
• HPV70-MA-R-21 Factory Test Report
  Documented closed-loop performance test data including speed, pressure, flow, displacement, torque, input power, output power, overall efficiency and volumetric efficiency.
• HPV Series Technical Parameter Sheet
  Series-level technical information covering displacement classes, operating speed, pressure, torque, power, temperature and model configuration.

Technical Information Request

For OEM and hydraulic system integration projects, technical information can be reviewed according to the required displacement, operating pressure, speed, control method, rotation direction and mounting configuration.

FAQ of Highland high pressure hydraulic pumps:

Q:  Are you a manufacturer or trading company?

A:  We are a professional hydraulic pumps manufacturer.

Q: What is the MOQ?

A: 1pc is also OK.

Q: How long is your warranty?

A: All our products come with an one (1) year warranty.

Q: Which payment terms could you accept?

A: Payment Terms: T/T , Western Union or Cash .

Q: Does your company accept customization?

A: We have our own factory, and excellent design team, and we accept OEM.

Tags: agricultural hydraulic pumps, high pressure hydraulic pumps, forage harvesters hydraulic pumps