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PGP620 PARKER Triple Gear Hydraulic Pump

The Parker PGP620 Series is a heavy-duty, fixed displacement cast iron gear pump designed to offer high power density and volumetric efficiency for demanding hydraulic systems. Its patented, interlocking two-piece cast iron construction provides superior durability and structural strength, making it ideal for engineered mobile equipment solutions in construction, agriculture, and material handling.
  • PGP620

  • Green Hydraulic

  • PGP620

  • 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

PGP620 Gear Pump  Overview

The Parker PGP620 is a high-performance, fixed-displacement gear pump designed for heavy-duty hydraulic systems that require exceptional efficiency and durability. Featuring a robust cast iron construction and advanced sealing technology, the PGP620 is engineered to deliver reliable performance in demanding mobile and industrial applications, especially where high pressure and high power density are essential.

Features and Benefits

  • Robust Cast Iron Construction:
    The PGP620 is built with high-strength, interlocking two-piece cast iron bodies, providing superior structural integrity compared to aluminum designs. This heavy-duty construction minimizes internal deflection and mechanical fatigue under high-pressure cycles, ensuring an extended service life in harsh operating environments.

  • Advanced Journal Bearing Design:
    Utilizing precision-engineered journal bearings, the PGP620 offers an optimized bearing surface area that excels in high-load conditions. This design provides excellent resistance to fluid contamination and thermal shock, maintaining high volumetric efficiency while protecting the pump from premature wear during intensive use.

  • Pressure-Balanced Thrust Plates:
    Equipped with sophisticated pressure-balanced thrust plates, the PGP620 automatically optimizes internal clearances between the gear faces and the housing. This minimizes internal fluid bypass and friction, ensuring high mechanical efficiency and consistent power delivery across a wide range of operating temperatures and speeds.

  • Superior High-Pressure Capability:
    Despite its compact design, the PGP620 is engineered to handle continuous operating pressures of up to 4,000 psi (275 bar). Its high-alloy steel gears and precision-machined components allow it to power high-force actuators and complex hydraulic circuits with smooth, reliable flow.

  • Modular Versatility and Installation Flexibility:
    The PGP620 series offers a versatile range of displacements (from 16 to 52 cc/rev) and supports a variety of standard SAE and ISO mounting options. With multiple porting configurations and the ability to be assembled as multiple pump units, it provides unmatched installation flexibility for complex chassis layouts and specialized mobile machinery.

Model Codes

PGP620(1)


Technical Data

Model Code      Displacement Max. Continuous Pressure  Max. Speed
PGP620-0160 16 275 3500
PGP620-0190 19 275 3500
PGP620-0210 21 275 3500
PGP620-0230 23 275 3300
PGP620-0260 26 275 3000
PGP620-0290 29 275 2800
PGP620-0330 33 275 2500
PGP620-0370 37 250 2400
PGP620-0410 41 220 2200
PGP620-0460 46 210 2200
PGP620-0500 50 190 2000
PGP620-0520 52 180 2000

PGP620 Hydraulic Gear Pump Installation Dimensions

PGP620(2)


Applications

The Parker PGP620 series provides a rugged, high-pressure power solution specifically tailored for heavy-duty mobile and industrial applications where high efficiency and exceptional mechanical strength are required:
  • Construction & Earthmoving Equipment: A primary choice for mini-excavators, skid steer loaders, and backhoes, where the PGP620’s robust cast iron frame provides reliable hydraulic power for intensive digging and lifting operations.

  • Material Handling & Lift Trucks: Optimized for high-capacity forklifts, telehandlers, and reach stackers, where its high volumetric efficiency ensures smooth, precise mast control and consistent performance under heavy load conditions.

  • Refuse & Waste Management: Widely used in mid-sized garbage compactors and recycling trucks that require high-cycle stability and high-pressure endurance to manage continuous compaction and unloading tasks.

  • Agricultural Machinery: Frequently employed in high-horsepower tractors, harvesters, and forestry equipment, where the PGP620 handles the variable load shocks and fluid contamination common in demanding field environments.

  • Municipal & Specialty Vehicles: Ideal for street sweepers, vacuum trucks, and large snow removal systems, offering a durable and versatile power source that integrates seamlessly with complex multi-circuit hydraulic systems. 


Vane Pump Application



Packaging & Delivery

Shipping Methods

PGP620 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.


PGP620 Gear Pump  FAQ

1. What are PGP620 series gear pumps

The PGP620 is a high-performance, fixed-displacement external gear pump within Parker’s PGP600 family. Featuring a rugged  three-piece construction  (high-strength extruded aluminum body with cast iron front and rear covers), it is specifically engineered for high-duty hydraulic systems that require an excellent power-to-weight ratio and reliable output in demanding mobile and industrial applications.

2. What makes the PGP620 different from standard aluminum gear pumps

The PGP620 is built for superior efficiency and durability where standard pumps might fall short:
  • High-Strength Aluminum Body: The body is produced from high-tensile strength extruded aluminum, which minimizes "body stretching" and maintains tight internal clearances for consistent performance even at high pressures.

  • Advanced Bushing-Style Performance: It utilizes pressure-balanced, high-performance bushings that provide a superior bearing surface for the 12-tooth gears, offering exceptional resistance to thermal shock and fluid contamination.

  • Optimized Low-Noise Design: The precision-ground gears and rigid housing design significantly reduce noise and vibration, making it ideal for modern, quiet-operating machinery.

3. What is the working pressure range of PGP620 pumps

The PGP620 is a high-pressure workhorse. Depending on the specific displacement, the series typically handles:
  • Continuous Pressure: Up to 4,000 PSI (275 bar).

  • Intermittent/Peak Pressure: Up to 4,350 PSI (300 bar).
    This robust pressure rating allows the PGP620 to power heavy-duty lifting, steering, and auxiliary functions on large-scale construction and agricultural equipment.

4. Can PGP620 pumps replace other brands

Yes, the PGP620 is a high-quality alternative to other premium high-pressure pumps. It is frequently used as a replacement or upgrade for:
  • Casappa: Polaris PLP30 Series.

  • Marzocchi: GHP3 Series.

  • Rexroth: AZPG Series.

  • Permco: P124 Series.
    To ensure a successful swap, verify the Mounting Flange (typically SAE B), Shaft Type (Splined, Keyed, or Tapered), and Displacement (cc/rev) to match your existing system.

5. What are the key maintenance requirements for PGP620 gear pumps

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

  • Viscosity: Standard ISO VG32 to VG68. The optimal operating range is 15 to 75 cSt (80 to 350 SUS), with cold start capabilities up to 1,600 cSt.

  • Filtration: Cleanliness is critical. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent premature wear of the internal components.

6. What is the typical speed range of PGP620 pumps

The PGP620 series is designed for versatile operation, typically ranging from 500 RPM to 3,500 RPM, depending on the displacement and system pressure requirements.

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

PGP620 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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