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KZP4 / KRP4 Series
Green Hydraulic
Yes
ISO9001，CE
• Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)
1.Construction Equipment 2.Agricultural Machinery 3.Material Handling 4.Industrial Machinery
Key Shaft and Spline shaft
1 set
Product Description
The KZP4 / KRP4 Series Hydraulic Gear Pumps are high-performance external gear pumps designed for reliable hydraulic power delivery in medium to heavy-duty applications. Built with precision-machined gears and a robust cast iron housing, these pumps provide stable flow, high efficiency, and long service life under demanding operating conditions.
High Pressure Capability
Designed for stable operation under medium to high-pressure working conditions.
Robust Cast Iron Construction
Ensures excellent durability and resistance to wear in harsh environments.
Stable and Efficient Output
Precision gear design delivers consistent flow with high volumetric efficiency.
Low Noise & Smooth Operation
Optimized internal structure reduces vibration and improves performance.
Flexible Configuration Options
Multiple displacements, shaft types, and mounting options for OEM compatibility.
| Model | Nominal Displacement (mL/r) | Max. Pressure (MPa) | Min. Speed (rpm) | Max. Speed (rpm) | Weight (kg) |
| KZP4/KRP4-7 | 7 | 17.2 | 500 | 3500 | 2.3 |
| KZP4/KRP4-9 | 9.4 | 17.2 | 500 | 3500 | 2.4 |
| KZP4/KRP4-12 | 11.9 | 17.2 | 600 | 3500 | 2.5 |
| KZP4/KRP4-14 | 14.8 | 17.2 | 500 | 3500 | 3 |
| KZP4/KRP4-17 | 16.8 | 17.2 | 600 | 3500 | 3.1 |
| KZP4/KRP4-19 | 19.2 | 17.2 | 600 | 3500 | 3.2 |
| KZP4/KRP4-23 | 22.9 | 15.7 | 650 | 3000 | 3.3 |
| KZP4/KRP4-27 | 26.5 | 15.7 | 650 | 3000 | 3.4 |
| KZP4/KRP4-33 | 33.3 | 13.7 | 650 | 2500 | 3.5 |
Applications
Construction Machinery
Excavators, loaders, cranes
Agricultural Equipment
Tractors, harvesters, sprayers
Material Handling
Forklifts, lifting systems, pallet trucks
Industrial Machinery
Hydraulic presses, machine tools, automation systems
Mobile Equipment
Dump trucks, utility vehicles
KZP4 / KRP4 Series Hydraulic Gear 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.
KZP4 is a standard performance series, while KRP4 is designed for higher pressure resistance and longer service life.
2.What pressure can these pumps handle?
They typically operate up to 250–280 bar, depending on the specific model.
3.Are these pumps compatible with other brands?
Yes, they are commonly used as replacements for various European and American gear pump brands.
4.What displacement options are available?
Both series offer multiple displacement options to meet different flow requirements.
5.Can I customize the pump configuration?
Yes, OEM customization is available, including shaft type, flange, port type, and rotation direction.
Use clean hydraulic oil, maintain proper filtration (≤25 μm), avoid overload and dry running, and ensure correct installation.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
Please provide the following details:
Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.
KZP4 / KRP4 Series 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.
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.
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 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.
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.
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.
All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.
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.
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.
