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Paker P50 P51 External Gear Pumps

Key Performance Parameters (General Range)

Parameter Value Range
Displacement 41.8 – 104.5 cc/rev
Flow Rate Approx. 9.5 – 66 GPM
Rated Pressure 20.7 MPa (≈3000 psi)
Maximum Pressure 24.8 MPa (≈3600 psi)
Maximum Speed ​​2400 rpm
Minimum Speed ​​600 rpm
Working Medium Hydraulic Oil
  • Paker P50 P51

  • Green Hydraulic

  • 1

Availability:
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Product Description

Paker P50 P51 External Gear Pumps Overview

Parker Hannifin CBQL-EF  Gear Pumps (PGP050 / PGP051) are heavy-duty external gear pumps designed specifically for medium- and high-pressure hydraulic systems. This series features a high-strength cast iron construction, offering excellent pressure resistance and shock resistance, enabling stable operation under harsh conditions. They are widely used in construction machinery, agricultural equipment, and industrial hydraulic systems.

Features and Benefits

  • Stable and efficient hydraulic output

  • Compact and durable gear construction

  • Low noise and reliable performance

  • Easy installation and maintenance

Model Codes

CBQL-EF(5)

Technical Data

Model Displacement (ml/r) Fore/Rear Rated Pressure (MPa) Max Pressure (MPa) Rated Speed (rpm) Max Speed (rpm) Vol. Efficiency (%) L1 (mm) L2 (mm) L (mm) Inlet Port Outlet Port Weight (kg)
CBQL-F520/F520-CFH* 20/20 20/20 25/25 600-2500 3000 93/92 74.5 205.5 282.5 25/25 20/20 13.0
CBQL-F525/F525-CFH* 25/25 20/20 25/25 600-2500 3000 93/92 76.5 211.5 290.5 25/25 20/20 14.0
CBQL-F525/F520-CFH* 25/20 20/20 25/25 600-2500 3000 93/92 76.5 209.5 286.5 25/25 20/20 13.5
CBQL-F532/F532-CFH* 32/32 20/20 25/25 600-2500 3000 93/93 79.0 219.0 300.5 30/30 20/20 15.4
CBQL-F532/F525-CFH* 32/25 20/20 25/25 600-2500 3000 93/92 79.0 216.5 295.5 30/25 20/20 14.7
CBQL-F532/F520-CFH* 32/20 20/20 25/25 600-2500 3000 93/92 79.0 214.5 291.5 30/25 20/20 14.2
CBQL-F540/F540-CFH* 40/40 20/20 25/25 600-2500 3000 93/93 81.5 226.5 310.5 35/35 20/20 17.0
CBQL-F540/F532-CFH* 40/32 20/20 25/25 600-2500 3000 93/93 81.5 224.0 305.5 35/30 20/20 16.2
CBQL-F540/F525-CFH* 40/25 20/20 25/25 600-2500 3000 93/92 81.5 221.5 300.5 35/25 20/20 15.5
CBQL-F540/F520-CFH* 40/20 20/20 25/25 600-2500 3000 93/92 81.5 219.5 296.5 35/25 20/20 15.0
CBQL-F550/F540-CFH* 50/40 20/20 25/25 600-2500 3000 93/93 85.0 233.5 317.5 35/35 25/20 18.0
CBQL-F550/F532-CFH* 50/32 20/20 25/25 600-2500 3000 93/93 85.0 231.0 312.5 35/30 25/20 17.2
CBQL-F550/F525-CFH* 50/25 20/20 25/25 600-2500 3000 93/92 85.0 228.5 307.5 35/25 25/20 16.5













CBQL-EF Hydraulic Gear Pump Installation Dimensions

CBQL-EF(6)

Applications

  • Agricultural Machinery

  • Forklifts and Material Handling Equipment

  • Construction Machinery

  • Loaders and Excavators

  • Hydraulic Power Units

  • Industrial Hydraulic Systems

Vane Pump Application



Packaging & Delivery

CBQL-EF 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.


CBQL-EF Hydraulic Gear Pump FAQ

  • What type of pump is the CBQL-EF series?
    It is a high-performance external gear pump designed for stable hydraulic power transmission.

  • What applications is the CBQL-EF pump suitable for?
    It is widely used in agricultural machinery, forklifts, loaders, construction equipment, and hydraulic power units.

  • What pressure range can the CBQL-EF gear pump handle?
    Depending on the model, rated pressure is generally up to 20 MPa, with peak pressure up to 25 MPa.

  • Can the CBQL-EF pump support tandem or double pump configurations?
    Yes, the CBQL-EF series includes multiple tandem pump combinations for dual-circuit hydraulic systems.

  • What hydraulic oil is recommended for this pump?
    Clean mineral-based hydraulic oil with proper viscosity is typically recommended for best performance.

  • Does the CBQL-EF gear pump support different shaft and mounting options?
    Yes, various shaft forms and mounting configurations are available to meet equipment requirements.

Certifications & Quality Assurance

CBQL-EF 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
Green logo



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