CBKP External Gear Pump
1. Product Overview
The CBKP series is a high-performance external hydraulic gear pump widely used as a main power component for mobile machinery and industrial hydraulic system. Adopting high-strength cast iron pump body and precision machined gear sets, this hydraulic gear pump features compact structure, stable output pressure and outstanding anti-pollution ability. It is designed for continuous duty operation in harsh working environments, commonly applied in loaders, sanitation trucks, agricultural machines, engineering machinery and stationary hydraulic power units. The whole series follows unified installation dimensions, which makes it fully interchangeable with other standard gear pumps for convenient replacement.
Model Explanation
CBKP is a standard industrial external gear pump series with reinforced structure, designed for medium and high pressure working conditions.
2. Main Technical Parameters
Item Specification
Pump Type External meshing hydraulic gear pump
Rated Working Pressure 20 MPa
Maximum Intermittent Pressure 25 MPa
Rotational Speed Range 600 ~ 3000 rpm
Internal Structure Floating side plate automatic clearance compensation, radial pressure balance structure
Standard Seals HNBR nitrile rubber; FKM high temperature resistant seals optional
Applicable Hydraulic Fluid ISO VG46, VG68 anti-wear hydraulic oil
Operating Temperature -20℃ ~ +90℃
Mounting Form Standard diamond flange
Volumetric Efficiency ≥91%
3. Working Principle
When the driving shaft rotates, a pair of meshing gears turns synchronously. Vacuum is formed at the suction side, drawing hydraulic oil from the reservoir. The gear teeth carry the oil to the pressure outlet and build system pressure. The floating side plate automatically compensates the axial clearance caused by gear abrasion, greatly reducing internal leakage and maintaining high efficiency of the hydraulic gear pump during long-term continuous operation.
4. Core Advantages
1. Reinforced cast iron housing with high rigidity, strong resistance to vibration and pressure impact.
2. Floating side plate design keeps low internal leakage, stable performance after thousands of working hours.
3. Optimized gear profile achieves low noise and small flow pulsation.
4. Excellent dirt resistance, perfectly adapted to dusty construction sites.
5. Standard flange and port layout, plug-and-play replacement without modifying pipelines.
6. Simple structure, easy maintenance and long service life.
5. Application Range
This hydraulic gear pump serves as the main oil supply unit in hydraulic system of mini loaders, road sweepers, garbage trucks, harvesters, forklifts and various industrial hydraulic stations.
6. Common Faults & Replacement Advice
Replace the whole pump assembly when problems occur: insufficient pressure, slow cylinder action, oil leakage on shaft seal and mating surface, abnormal grinding noise inside pump body.
