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HGP-2A Simple Gear Pump

The HGP-2A Series is a high-pressure aluminum alloy gear pump designed for high efficiency and reliability in diverse hydraulic systems. Known for its compact structure and lightweight design, the HGP-2A utilizes high-precision gears and pressure-balanced bush blocks to ensure exceptional volumetric efficiency and a long service life, even under high-load conditions.
 
  • HGP-2A

  • Green Hydraulic

  • HGP-2A

  • Standard export carton/plywood case

  • Yes

  • ISO9001,CE

  • • Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)

  • 1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry

  • Key Shaft and Spline shaft

  • 1 set

Availability:
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Product Description

HGP-2A Gear Pump  Overview

The HGP-2A is a high-performance, fixed-displacement external gear pump specifically engineered for hydraulic systems that demand a balance of high-pressure capability and compact design. Featuring a high-strength aluminum alloy body, the HGP-2A is designed to provide exceptional volumetric efficiency and reliability. Its lightweight construction and robust internal engineering make it an ideal choice for both mobile equipment and industrial machinery where space is limited and consistent power output is essential.

Features and Benefits

  • High-Strength Aluminum Alloy Construction:
    The HGP-2A is built with premium aluminum alloy bodies and covers, providing an excellent power-to-weight ratio. This robust construction ensures superior heat dissipation and structural integrity while minimizing the overall unit weight for easier mounting.

  • Advanced Pressure-Balanced Design:
    Utilizing high-precision, pressure-balanced bush blocks, the HGP-2A automatically compensates for axial clearances. This ensures maximum volumetric efficiency and consistent performance across a wide range of operating temperatures and pressures.

  • Precision-Engineered Gears for Low Noise:
    Equipped with precision-machined alloy steel gears, the HGP-2A is optimized to reduce flow pulsation and mechanical noise. This results in quiet, smooth operation, which is critical for operator comfort and indoor industrial environments.

  • Superior Durability and Service Life:
    The use of high-quality, wear-resistant bearings and a specialized sealing system allows the HGP-2A to withstand rigorous duty cycles. It is designed for long-term reliability in demanding applications, reducing maintenance costs and downtime.

  • Modular Versatility and Installation Flexibility:
    The HGP-2A series offers a broad range of displacements and supports standard SAE and metric mounting options. With flexible porting configurations (side or rear), it provides unmatched versatility for various hydraulic circuit layouts.

Model Codes

HGP-2A(1)

Technical Data

Model Number Theoretical Displacement (cc/rev) Rated Pressure (MPa / bar) Max. Peak Pressure (MPa / bar) Max. Speed (min⁻⊃1;) Min. Speed (min⁻⊃1;)
HGP-2A-F2 2.1 21 / 210 25 / 250 4000 600
HGP-2A-F3 3.1 21 / 210 25 / 250 4000 600
HGP-2A-F4 4.2 21 / 210 25 / 250 4000 500
HGP-2A-F6 6.3 21 / 210 25 / 250 3500 500
HGP-2A-F8 8.4 21 / 210 25 / 250 3500 500
HGP-2A-F9 9.4 21 / 210 25 / 250 3500 500
HGP-2A-F11 10.5 21 / 210 25 / 250 3000 500
HGP-2A-F12 12.5 21 / 210 25 / 250 3000 500

HGP-2A Hydraulic Gear Pump Installation Dimensions


HGP-2A(2)

Applications

The HGP-2A series provides a reliable and efficient power solution specifically tailored for medium-duty mobile and industrial applications:
  • Material Handling Equipment: A primary choice for electric forklifts, reach trucks, and pallet stackers, providing smooth power for lifting and auxiliary hydraulic functions.

  • Plastic & Industrial Machinery: Optimized for injection molding machines, small hydraulic presses, and clamping units that require high-cycle stability and precision.

  • Agricultural Machinery: Widely used in small tractors, harvesters, and seeding equipment, where the HGP-2A handles variable loads in outdoor environments.

  • Construction & Utility Vehicles: Ideal for truck-mounted cranes, aerial platforms, and small excavators, offering a durable and space-efficient power source.

  • Mobile Power Units: Frequently employed in hydraulic ramp systems, tailgate lifts, and portable power packs where a compact, high-pressure pump is required.


Vane Pump Application



Packaging & Delivery

HGP-2A pumps are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.


HGP-2A Gear Pump  FAQ

1. What are HGP-2A series gear pumps

The HGP-2A is a high-performance, fixed-displacement external gear pump and a core component for medium-pressure hydraulic systems. Featuring a high-strength aluminum alloy construction, it is specifically engineered for compact applications that require high volumetric efficiency and a lightweight profile, commonly found in industrial and mobile machinery.

2. What makes the HGP-2A different from other aluminum pumps

The HGP-2A is built for precision and reliability in environments where efficiency is critical:
  • Pressure-Balanced Bushing Design: It utilizes advanced, pressure-balanced bush blocks that automatically compensate for axial clearances, ensuring high volumetric efficiency and consistent performance even as temperatures rise.

  • High-Strength Aluminum Body: The premium aluminum alloy housing provides excellent heat dissipation and a high power-to-weight ratio compared to cast iron alternatives.

  • Optimized Gear Geometry: Precision-cut gears minimize flow pulsation and mechanical noise, resulting in exceptionally quiet operation for indoor and operator-centric environments.

3. What is the working pressure range of HGP-2A pumps

The HGP-2A is a robust solution for medium-to-high pressure applications. Depending on the specific displacement, the series typically handles:
  • Continuous Pressure: Up to 210 bar (21 MPa / 3,000 PSI).

  • Intermittent/Peak Pressure: Up to 250 bar (25 MPa / 3,600 PSI).
    This pressure capability makes the HGP-2A ideal for driving lifting, clamping, and steering systems in professional-grade equipment.

4. Can HGP-2A pumps replace other brands

Yes, the HGP-2A is a highly versatile pump and is often used as a direct replacement or upgrade for other premium international brands, such as:
  • Shimadzu: SGP1 Series (in compatible displacement ranges).

  • Salami: 2PE Series.

  • Casappa: Polaris (PLP) Series.
    To ensure a successful swap, verify the Mounting Flange (SAE A or European 4-bolt), Shaft Type (Splined, Taper

5. What hydraulic oil is suitable for HGP-2A gear pumps

To protect the high-precision bushings and gears, the following is recommended:
  • Oil Type: Premium mineral-based hydraulic fluids with strong Anti-Wear (AW) additive packages.

  • Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 20 to 100 cSt (mm²/s), though it can handle cold starts up to 1,000 cSt.

  • Filtration: Cleanliness is vital. A minimum filtration of ISO 4406 19/16/13 is recommended to prevent abrasive particles from damaging the bushing faces.

6. What is the typical speed range of HGP-2A pumps

The HGP-2A series offers a wide operating speed range to suit various drive sources:
  • Minimum Speed: Typically 500 – 600 RPM.

  • Maximum Speed: Up to 3,000 – 4,000 RPM (depending on the displacement size and suction conditions).

7. Do you provide OEM or customized services

Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.

8. How can I get a quotation quickly

Please provide the following details:

  • Model or displacement

  • Working pressure

  • Speed

  • Quantity
    We will reply within 12 hours with a competitive quotation.


Certifications & Quality Assurance

HGP-2A pumps are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.



Green Hydraulic Patent Certificate

FAQ

1.How does the variable displacement work?

The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.


2.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.


3.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.


4.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.


5.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).


Unedited footage of the Green Hydraulic Factory

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

Unedited footage of the Green Hydraulic Factory

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.

Unedited footage of the Green Hydraulic Factory

Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.

Unedited footage of the Green Hydraulic Factory3

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

Unedited footage of the Green Hydraulic Factory4

To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.

Unedited footage of the Green Hydraulic Factory5

Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.


Green Hydraulic Advantages
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