Closed loop hydraulic pump/hydraulic motor manufacturer & hydraulic solutions provider - Highland Hydraulic

Closed Circuit Hydraulic Variable Displacement Pumps

Closed Circuit Hydraulic Systems with Variable Displacement Pumps

Hydraulic Systems with Variable Displacement Pumps

Closed Circuit Hydraulic Systems with Variable Displacement Pumps

High Pressure Performance: Supports continuous operation up to 42 MPa, ideal for mobile machinery.
Variable Displacement Efficiency: Adapts fluid output to load demands, reducing fuel consumption and improving control precision.
Closed Circuit Design: Recirculates hydraulic fluid with minimal energy loss, enabling cleaner operation and higher system efficiency.
Compact Modular Layout: Optimized for space-limited installations in mobile equipment without sacrificing durability or accessibility.
Customizable Control Options: Supports mechanical, hydraulic, and electronic proportional control modes for tailored integration with modern machinery.

MOQ:

1 set

Packaging Details:

Plywood case

Delivery Time:

30-60 work days

Payment Terms:

T/T, Western Union

Supply Ability:

100 sets per month

Certificate:

CE ISO9001

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Product Name

Hydraulic Transmission

Function

Power components of hydraulic system

Pressure

42mpa

Brand

HIGHLAND

Operation Mode

Closed Circuit Hydraulic System

Working Medium

Hydraulic Oil

Warranty

1 Year

Material

Cast Iron

Closed Circuit Hydraulic Systems with Variable Displacement Pumps

Closed circuit hydraulic systems with variable displacement pumps provide efficient, compact,

and high-performance power solutions for modern mobile machinery.

our advantage

Product design

Simple and easy to disassemble and assemble, high strength and high pressure resistance, easy to install in series, full variety

Low price

We promise the lowest price for new products of the same variety in the world

Control mode

Manual servo, electric proportional servo, hydraulic servo, control valve can be replaced modularly

Simple operation

The installation interface design of the pump meets international standards and is easy to install and operate

Product Description

Highland’s closed circuit hydraulic systems with variable displacement pumps deliver reliable and energy-efficient solutions for mobile hydraulic applications. Designed for heavy-duty use, hydraulic systems offer compact layout, customizable control, and consistent high-pressure output.

Product Features

Closed circuit hydraulic systems with variable displacement pumps are essential for powering mobile equipment that demands high efficiency and reliability.
Highland hydraulic systems continuously circulate hydraulic fluid within a sealed loop, minimizing energy loss and external contamination.
Highland variable displacement pumps allows precise control over fluid flow, adapting to real-time system needs and reducing fuel usage.
Highland hydraulic system is widely used in construction machinery, agricultural vehicles, road-building equipment, and mining machines.

Product INTRODUCTION

Highland closed circuit hydraulic systems with variable displacement pumps offer advanced power transmission for mobile machinery. Engineered for efficiency and durability, they are ideal for OEMs in construction, agriculture, and off-road applications seeking compact, high-pressure solutions.

PRODUCT SPECIFICATIONS

Rated displacement			30	50	70	90	110	130
Rated displacement	Maximum displacement	ml/r	30	50	70	90	110	130
Speed	Maximum continuous operating speed (Full load condition)	r/min	3500	3500	3200	3000	2900	2700
	Rated speed	r/min	2500
	Minimum continuous operating speed	r/min	500
Pressure	Rated working pressure	Mpa	35
	Maximum working pressure (instantaneous)	Mpa	42
	Continuous working pressure ( Δ P)	Mpa	30
	Allowable shell pressure (absolute)	Mpa	Constant0.25，Peak value0.5
Torque	Continuous output torque (Under continuous work pressure)	Nm	162.3	252.3	342.6	432.9	535.3	632.4
Torque	Maximum output torque	Nm	227	353	480	606	749	885
Power	Continuous Power	KW	41	72	98	128	137	162
Power	Maximum power	KW	57	87	105	138	159	188
Temperature	Allowable temperature of shell	℃	80
Temperature	Maximum operating temperature of fuel tank	℃	70
Angle	Maximum inclination angle of the inclined plate	°	± 18 °
Weight	HPV series hydraulic pump Hydraulic oil drainage	kg	45	46	63	64	87	87.5

HPV30(50)

PDF

HPV70(90)

PDF

HPV110(130)

PDF

detail displaY

Variable Displacement Pumps

Closed Circuit Hydraulic Systems

Closed Circuit Variable Displacement Pumps

Product Application

6--8 cubic meter concrete mixer truck

Cotton picker

Engineering ship pump

Underground loader

Mine use loader

Cane Grabber Machine

Packing & Delivery

To ensure the safe delivery of variable piston pump and hydraulic motor, we utilize multiple layers of protective packaging. The pump is first sealed in a durable plastic bag to prevent moisture and contamination. Next, it is securely fixed within a reinforced plywood case to prevent movement and damage during transportation, given the heavy weight of the product. Finally, the plywood case, built to standard export specifications, provides sturdy protection suitable for international shipping.

FAQ

Are you a manufacturer or Trader ?

We are a professional manufacture, we have our own R&D team and sales team, we provide one-stop service.

What is your company brand name?

Our brand name is HIGHLAND.

What is your main products?

1. Hydrostatic Pump 2. Hydrostatic Motor 3. Hydraulic test bench 4. Hydraulic tester

If products have some quality problem, how would you deal with?

We will responsible for all the quality problems.

How long is your delivery time?

Generally it is 5-10 days if the goods are in stock. or it is15-20 days if the goods are not in stock, it is according to customers’ quantity.

What is your terms of payment?

Payment<=10000USD,100% in advance. Payment>=10000USD, 40% T/T in advance, balance before shipment.

What is the standard of package?

Export standard package or special package according to customer requirement.

Get in touch with us

just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs