Agricultural Tandem Hydraulic Pumps Lightweight Compact Hydraulic Piston Pump

Product Description

 Highland Agricultural machinery equipment tandem hydraulic pumps high quality performance

Highland Tandem hydraulic pumps basic information: 

We could produce dual hydraulic pumps, triple pump and quadruple pump.

Highland tandem hydraulic pumps are designed for closed circuit variable displacement axial piston pumps, which connect with hydraulic motors for control and transfer of hydraulic power. Our tandem pumps are used together in combination with other pumps motors in the overall hydraulic system. Our hydraulic pumps have many different displacement, pressure and load-life capabilities.

Highland Tandem hydraulic pumps main features:

Maximize performance, efficiency, and profit.

Suitable for your applications: tandem hydraulic pumps can be used in overall hydraulic systems.

High efficiency: Operating at maximized efficiency, tandem hydraulic pumps will help lower your total costs.

Optimized design: Compactness appearance make operating your machine as simple as possible, still providing best quality at highest standards.

Clean and flexibility: The lightweight, compact design. Precise control and reliable quality and performance.

Wide range of displacements: Offering a range of pumps with 30-130 cm² per round.

High pressure capability: Working with 420 bar transient pressure.

Hydraulic usage of Highland tandem hydraulic pumps:

Highland tandem hydraulic pump is generally used in hydraulic transmission system, especially widely used in high-power hydraulic transmission system, such as construction machinery, agricultural machinery equipment, coal mining industry, oil exploration, aerospace industry and shipbuilding industry.

Highland company service: 

Quality service

One to one service, can provide design and installation solutions;

Online service for quick response and consultation;

Solve difficult after-sales problems;

Lightning supply

Regular single product supply for immediate delivery, batch can be quickly shipped according to customer demand;

Commitment to warranty hydraulic pump and hydraulic motor within one year;

Provide personalized and customized services according to customer needs;

Hydraulic oil notice of Highland tandem 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.

Factory Performance Testing

A documented closed-loop performance test record backs the HPV70-MA-R-21 tandem hydraulic pump.

The supplied report lists the component as HPV70-MA-R-21, rated 70 mL/rev, and dates the test to September 14, 2026 at 26.8°C.

Data captured includes operating speed, pressure, flow, displacement, torque, input power, output power, overall efficiency and volumetric efficiency, at test pressures from roughly 5 MPa to 30.6 MPa.

Recorded Test Data

The data below is reproduced 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 data above reflects the documented factory test conditions; actual operating results may vary with hydraulic circuit configuration, fluid conditions, temperature and application conditions.

Engineering Drawing

HPV70 Engineering Drawing & Technical Documentation

Engineering documentation covering dimensional integration and hydraulic configuration is available for the HPV70-MA-R-21.

From the supplied engineering drawing, the control handle, maximum and zero displacement positions, hydraulic ports, leakage ports, oil suction port and pressure test point are identified, along with the shaft spline and control-handle information required 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

Control configurations MA, EP and HS for the HPV series are documented as well, together with the clockwise and counterclockwise rotation configurations.

Engineering Integration

When preparing for system integration, the chosen 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

A variable piston pump project for Kyrgyzstan, documented in the supplied materials, includes the HPV70-MA-R-21.

Project Details

The documented project specification describes 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 shared as documented application information from the supplied project materials.

Technical Documents

HPV70-MA-R-21 Technical Documents

Supporting product evaluation, hydraulic system integration and model selection, 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 hydraulic tandem 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.

Q:  How can I get the information and quotation of this product quickly?
A:  Please leave your email, WhatsApp or wechat, and we will arrange the sales manager to contact you asap.

Tags: tandem hydraulic pumps, tandem pumps, agricultural machinery equipment