High quality and customized OEM gear pumps, piston pumps, vane pumps and components.

11-50

Professional Staff

5-10

Quality Inspectors

$5M-$8M

Annual Sales

31-40%

Export Ratio

About Our Factory

Quanzhou Hengyuhang Power Technology Co., Ltd. (shortened as HYH Hydraulics) is a comprehensive hydraulic components manufacturer integrating design, production, and sales.

We utilize advanced manufacturing technologies including CNC machining centers, automatic gear processing lines, heat treatment furnaces, single-piece flow assembly lines, and automatic hydraulic pump test benches.

Our intelligent equipment enables automatic unmanned production with online measurement to ensure product consistency and reliability. We implement ERP and MES management systems for full product traceability.

Main Products: External gear pumps, Hydraulic synchronous motors, Multiplex pumps, Piston motors, Cycloidal motors, Gear motors, Metering pumps, Custom valve blocks.

Products

High quality OEM gear pumps, piston pumps, vane pumps and components.

Hydraulic Pumps

HYH Hydraulics specialize in the design, manufacturing, and servicing of advanced hydraulic pump solutions, providing reliable and efficient equipment for a wide range of industrie...

Hydraulic Motors

HYH Hydraulics specialize in the design, manufacturing, and servicing of advanced hydraulic pump solutions, providing reliable and efficient equipment for a wide range of industrie...

Spare Parts

HYH Hydraulics specialize in the design, manufacturing, and servicing of advanced hydraulic pump solutions, providing reliable and efficient equipment for a wide range of industrie...

OEM Replacement

Hydraulic system and parts replacement for the following brands.

Caterpillar (CAT) Replacements

JCB Replacements

Rexroth Replacements

Parker Replacements

Eaton/Vickers Replacements

Danfoss Replacements

Komatsu Replacements

Featured Products

Featured OEM gear pumps, piston pumps, vane pumps, and components.

Mini External Gear Pump, Group 0PUF (0.19~2cm³/rev.)

HENGYUHANG 0PUF Gear Pump is engineered as a direct replacement and cost-effective alternative to well-known imported hydraulic gear pump brands such as Danfoss, Marzocchi, and Bucher. With standardized mounting dimensions, comparable performance parameters, and proven reliability, the 0PUF series allows customers to replace imported gear pumps without redesigning their hydraulic systems.This replacement solution is ideal for OEM manufacturers, distributors, and end users seeking stable supply,

Mini External Gear Pump, Group 1PUF (0.8~8cm³/rev.)

Mini External Gear Pump 1PUF (0.8~8cm³/rev.) Widely used Car lifts，Material handling equipment Wind turbine Hydraulic system

External Gear Pump, Group 1PDF (1.4~13.8cm³/rev.)

HENGYUHANG 1PDF Hydraulic Gear Pump is a high-performance external gear pump designed for stable hydraulic output and long service life. Manufactured with precision-machined gears and a robust housing structure, the 1PDF pump delivers smooth oil flow, low noise operation, and reliable efficiency under continuous working conditions.The 1PDF series supports multiple displacement options, operates at medium to high working pressure, and is compatible with mineral hydraulic oils commonly used in ind

External Gear Pump, Group 1.5PDF (2~12cm³/rev.)

HENGYUHANG External Gear Pump, Group 1.5 (2~12cm³/rev.) Widely used Hydraulic system. 1.5PDF Advantages:Low noise, high efficiency, long life service,High performance even at low speeds.

External Gear Pump, Group 2PDF (3~30cm³/rev.)

2PDF Hydraulic Gear PumpHigh Efficiency External Gear Pump for Hydraulic SystemsThe 2PDF hydraulic gear pump is a reliable external gear pump designed to deliver stable oil flow, high efficiency, and excellent durability. It is widely used in industrial equipment, agricultural machinery, construction machines, and hydraulic power units.With precision machining and strict quality control, the 2PDF gear pump ensures consistent performance under demanding working conditions.

External Gear Pump, Group 2.5PDF (23~40cm³/rev.)

HENGYUHANG 2.5PDF Hydraulic Gear PumpHigh Efficiency External Gear Pump for Industrial & Mobile HydraulicsThe HENGYUHANG 2.5PDF hydraulic gear pump is a high-performance external gear pump designed to deliver stable oil flow, high efficiency, and reliable operation in a wide range of hydraulic systems.With its compact structure and durable materials, the 2.5PDF gear pump is suitable for both industrial and mobile hydraulic applications.Manufactured under strict quality control, this model ensure

External Gear Pump, Group 3PDF (20~71cm³/rev.)

HENGYUHANG 3PDF external gear pump is a high-performance hydraulic gear pump designed as a reliable Rexroth gear pump replacement.As a professional external gear pump manufacturer, HENGYUHANG provides stable, cost-effective alternatives to imported hydraulic gear pumps without compromising performance or service life.The 3PDF series is suitable for medium to high pressure hydraulic systems and can directly replace many international brand gear pumps with equivalent mounting dimensions and perfor

Cast iron External Gear Pump, Group 2PTF(3~30cm³/rev.)

HENGYUHANG 2PTF external gear pump is a reliable and cost-effective CASAPPA gear pump replacement for hydraulic systems requiring stable flow, consistent pressure and long service life.As a professional external gear pump manufacturer, HENGYUHANG designs and produces hydraulic gear pumps that meet international mounting and performance standards, allowing direct replacement of CASAPPA gear pumps without modification to the hydraulic system.

Cast iron External Gear Pump, Group 3PTF(20~71cm³/rev.)

HENGYUHANG 3PTF Hydraulic Gear Pump is a high-performance external gear pump designed for medium to high pressure hydraulic systems. Featuring precision-machined gears, reinforced housing, and optimized internal structure, the 3PTF series delivers stable flow, high volumetric efficiency, low noise, and long service life. It is widely used in construction machinery, agricultural equipment, industrial hydraulic power units, and material handling systems. With standardized mounting flanges, multipl

External Gear Pump, Group 3PDF (20~71cm³/rev.)

HENGYUHANG 3PDF external gear pump is a reliable and cost-effective Parker PGP gear pump replacement for hydraulic systems requiring stable flow, high efficiency and long service life.As a professional external gear pump manufacturer, HENGYUHANG designs and produces hydraulic gear pumps that meet international mounting and performance standards, allowing direct replacement of Parker PGP series gear pumps without modification of the hydraulic system.

External Gear Pump, Group 2PDF (4~30cm³/rev.)

HENGYUHANG 2PDF Hydraulic Gear PumpHigh Performance External Gear Pump for Hydraulic SystemsThe HENGYUHANG 2PDF hydraulic gear pump is a high-quality external gear pump designed for stable flow output, high efficiency, and long service life. It is widely used in various industrial and mobile hydraulic systems where reliable hydraulic power is required.Manufactured with precision machining and strict quality control, the 2PDF gear pump ensures consistent performance under continuous or intermitte

Mini External Gear Pump, Group 0PUF (0.19~2cm³/rev.)

High Quality 0PUF External Hydraulic Gear PumpThe HENGYUHANG 0PUF hydraulic gear pump is a high-performance external gear pump designed for stable, efficient, and long-lasting hydraulic systems. Manufactured with precision machining and strict quality control, the 0PUF series delivers reliable oil flow under medium and high pressure conditions.This gear pump is widely used as a cost-effective replacement for Rexroth, Danfoss, Parker, Marzocchi, and Vivolo gear pumps, offering full compatibility

Strict Quality Assurance

Multi-stage inspection from raw materials to finished products

Precision
Measurement

High-precision measurement instruments ensure every component meets strict tolerance requirements. Online measurement during production guarantees consistency.

Testing
Laboratory

Our dedicated testing center performs comprehensive material analysis, dimensional verification, and functional testing on all components before assembly.

Performance
Validation

Automatic hydraulic pump performance test benches validate every unit before shipping. Full product traceability through ERP/MES systems.

Customization Process

How to place an order and the customization process.

Send an Inquiry

Please provide the nameplate, product drawing, or part number for the hydraulic components you need to purchase, or provide your own measured dimensions.

Confirm Request & Drawings

Based on the information and drawings provided by the customer, our hydraulic engineers will develop a customized replacement solution.

Solution & Delivery Time

Customer confirms the replacement plan and delivery time.

Manufacturing & Inspection

Start assembly and production based on the drawings and specified quantities. Once assembled, place the units on the test bench to record test data.

Final Acceptance & Confirmation

Before shipment, we will send the client photos of the finished products from every angle, along with the test bench videos, for final confirmation.

Workshop & Warehouse

State-of-the-art CNC machining centers and intelligent assembly lines

Assembly Workshop

Painting Workshop

Professional Spray Painting

Processing production workshop

CNC Machined Products

ZOLLER smile/420 Automatic Tool Changer

Efficient Warehouse Management

Large inventory ensures fast delivery for your orders

Large Inventory

Extensive spare parts warehouse with ready-to-ship inventory.

Fast Delivery

Efficient logistics management for quick order fulfillment.

Safe Packaging

Professional export packaging ensures product safety during transit.

Global Exhibition

Active participant in international trade shows worldwide

Trusted by Global Customers

Customers from all over the world came to visit and approve of our factory.

"We welcome all customers to visit our factory and witness our production capabilities firsthand."

News & Resources

Latest news on hydraulic gear pumps, piston pumps, and vane pumps.

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Eaton Gear Pump Features, Selection, Faults and Maintenance Comprehensive Solution

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Danfoss Gear Pump: Comprehensive Introduction, Performance Features, Application Scenarios and Maintenance Guidelines

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