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P21 Gear pump
cissoko
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Cissoko P21 gear pump is a classic heavy-duty cast iron hydraulic gear pump. It features heavy-duty roller bearings and a high-strength cast iron housing, offering high wear resistance, impact resistance, and an exceptionally long service life. Its maximum continuous working pressure is 2500 PSI, and it supports bidirectional rotation and multi-stage tandem operation. It is widely used in the hydraulic systems of heavy-duty trucks such as dump trucks, snowplows, and garbage trucks (in conjunction with PTO), as well as in agricultural, forestry, and construction machinery.
| Parameter | Specification / Value | Notes |
|---|---|---|
| Pump Type | High Pressure Gear Pump | Cast iron housing, roller bearing structure |
| Max Continuous Pressure | 2,500 PSI (172 bar) | Rated pressure for partial heavy-load working conditions |
| Max Intermittent Pressure | 3,000 PSI (207 bar) | Factory test or extreme transient pressure |
| Speed Range | 400 - 2,400 RPM | Rated speed typically 1200/1800 RPM |
| Fluid | Mineral Based Hydraulic Oil | Recommended filtration precision: 10-25 μm |
| Mounting Flange | SAE B 2/4 bolt combination flange | Compatible with 2-bolt and 4-bolt mounting |
| Drive Shaft | 7/8" 13T spline shaft / 1" 15T spline shaft | 13T / 15T Spline; parallel key shaft optional |
| Rotation | Bi-Rotational / Unidirectional optional | Most replacement parts support bidirectional switching by default |
| Housing Material | Doweled Cast Iron | Wear-resistant, high pressure resistance, long service life |
Applications
P21 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.
Yes, most P21 models feature a bi-rotational design, meaning they can rotate clockwise or counter-clockwise to match different PTO configurations.
You can change the rotation by disassembling the pump, flipping the pressure-balanced wear plates, swapping the positions of the drive and driven gears, and reassembling the unit.
You can use fully compatible direct replacements from major hydraulic brands such as Permco (P2100 series), Muncie, Dynaco, and Bezares.
The most common reason is internal wear on the pressure plates or gear edges, which creates gaps and causes hydraulic oil to leak internally back to the inlet.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
P21 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.
1.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.
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.
Of course we can. Just send me your logo we can make it for you.
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%).
The Cissoko 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.
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.
Cissoko 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.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko 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.
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.
