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Power Your Industry with Precision Hydraulic Products

Manufactured by GRH – Delivering high-quality hydraulic components for nearly 40 years. Trusted by global leaders in construction, agriculture, and industrial machinery.

Hydraulic Components

About GRH

A trusted manufacturer of hydraulic components with nearly four decades of experience in engineering excellence and innovation.

Engineering Excellence Since 1985

GRH has been at the forefront of hydraulic technology, designing and producing a diverse array of high-performance components used across multiple industries worldwide.

Our products are engineered for durability, precision, and reliability under extreme operating conditions. With a commitment to innovation and quality, GRH continues to power some of the most demanding machinery in agriculture, construction, mining, and oil drilling.

  • 40+ Years of Industry Experience
  • ISO-Certified Manufacturing
  • Custom Hydraulic Solutions
  • Global Supply to Leading OEMs
Hydraulic Valve Assembly Hydraulic Power Unit

Featured Product Categories

Explore our comprehensive range of hydraulic components designed for performance, reliability, and seamless integration.

Proportional Valves

Proportional Valves

Precision control valves for variable flow and pressure regulation in advanced hydraulic systems.

  • Models: GDV80, GDV100
  • Flow Rate: Up to 120 L/min
  • Pressure: Max 350 bar
  • Applications: Excavators, Cranes
Hydraulic Power Units

Hydraulic Power Units

Complete power packs with pump, motor, tank, and control systems for turnkey solutions.

  • Power: 3kW to 30kW
  • Tank Capacity: 50–300L
  • Customizable: Yes
  • Applications: Industrial Machinery
Hydraulic Gear Pumps

Hydraulic Gear Pumps

High-efficiency external gear pumps for constant flow delivery in mobile and industrial systems.

  • Displacement: 10–100 cc/rev
  • Pressure: Up to 250 bar
  • Mounting: SAE, ISO
  • Applications: Tractors, Loaders
Hydraulic Control Valves

Control Valves

Monoblock and sectional directional control valves for precise actuator management.

  • Sections: 1–8
  • Flow: 40–120 L/min
  • Types: Open/Closed Center
  • Applications: Agricultural Equipment
Hydraulic Gear Motors

Hydraulic Gear Motors

Compact, high-torque motors ideal for wheel drives, conveyors, and rotational applications.

  • Displacement: 80–500 cc/rev
  • Speed: Up to 2000 RPM
  • Mounting: Foot, Flange
  • Applications: Material Handling
Orbit Motors

Orbit Motors

Geroler-type motors offering high starting torque and smooth operation at low speeds.

  • Torque: Up to 500 Nm
  • Speed: 0–800 RPM
  • Brake Options: Spring-applied
  • Applications: Sweeper Trucks, Winches
Flow Dividers

Flow Dividers

Precision gear-type dividers for synchronized actuator movement in dual-circuit systems.

  • Channels: 2–4
  • Flow: 20–100 L/min
  • Accuracy: ±5%
  • Applications: Steering Systems
Cycloidal Speed Reducers

Cycloidal Reducers

High-torque, backlash-free speed reducers for precise motion control in industrial drives.

  • Reduction Ratio: 11–87:1
  • Torque: Up to 10,000 Nm
  • Input: Hydraulic Motor
  • Applications: Cranes, Mixers

Industries We Serve

Our hydraulic components are trusted across a wide range of heavy-duty and precision applications.

Agricultural Equipment

Construction Machinery

Road Construction

Material Handling

Garden Machinery

Municipal Machinery

Mining Equipment

Oil Drilling

Advanced Capabilities & Technology

At GRH, we combine decades of engineering expertise with state-of-the-art manufacturing facilities to deliver hydraulic solutions that meet the highest global standards.

Precision Manufacturing

CNC machining, robotic welding, and automated testing ensure consistent quality and performance.

Custom Engineering

Tailored hydraulic solutions designed to meet specific OEM requirements and integration needs.

Quality Assurance

Rigorous testing protocols including pressure, endurance, and leak testing on every unit.

Manufacturing Facility Hydraulic Testing

Trusted by Industry Leaders

Our components power some of the world’s most recognized machinery brands.

JCB

TEREX

John Deere

Sany

XCMG

ZOOMLION

Contact GRH

For product inquiries, technical support, or custom solutions, visit our official website to get in touch.

Address

RM 2201-2202, Building Jiajie International Square, No. 1717 North Sichuan Road, Shanghai

Phone

+86-21-62183268

+86-21-62183018

Email

[email protected]

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