CBZTG2 External Gear Pump
1. Product Overview
CBZTG2 is a high-pressure external hydraulic gear pump with reinforced structure, designed for medium and heavy-duty mobile machinery hydraulic system. The pump adopts high-strength cast iron housing and precision processed gear assemblies with G2 pressure grade design. This hydraulic gear pump features compact structure, pressure shock resistance and reliable contamination resistance, which can work steadily under long-period variable load conditions. It is widely used in mini loaders, sanitation vehicles, agricultural machinery, forklifts and small hydraulic power units. Thanks to standardized installation dimensions, it can be used as a direct replacement for original OEM pumps conveniently.
Model Explanation
CBZTG2 belongs to CBZT heavy-duty gear pump family; G2 refers to pressure grade and reinforced structural design with flange connection ports.
2. Main Technical Parameters
Item Specification
Pump Type External meshing hydraulic gear pump
Rated Working Pressure 20 MPa
Maximum Intermittent Peak Pressure 25 MPa
Rotational Speed Range 600 ~ 3000 rpm
Internal Structure Floating side plate automatic clearance compensation, radial hydraulic balance structure
Standard Seals HNBR nitrile rubber; FKM high temperature resistant seals optional
Applicable Hydraulic Oil ISO VG46, VG68 anti-wear hydraulic fluid
Operating Temperature -20℃ ~ +90℃
Mounting Form Standard diamond flange
Volumetric Efficiency ≥91%
3. Working Principle
When the driving shaft drives the gear pair to rotate, vacuum is generated in the suction chamber, which draws hydraulic oil from the oil tank. The meshing gears deliver pressurized oil to the hydraulic system. The floating side plates automatically compensate the axial clearance caused by gear wear, reduce internal leakage effectively, and keep the hydraulic gear pump maintaining high efficiency during continuous operation.
4. Core Advantages
1. Rigid cast iron pump body, good vibration resistance and pressure impact resistance.
2. Optimized gear profile realizes low noise and small flow pulsation.
3. Floating side plate design ensures low internal leakage and stable pressure output.
4. Excellent anti-pollution performance, suitable for dusty outdoor working conditions.
5. Standard flange and oil port position, plug-and-play replacement without modifying pipelines.
6. Simple structure, easy maintenance and long service life.
5. Application Range
This hydraulic gear pump is commonly applied in the hydraulic system of compact loaders, road sweepers, garbage trucks, harvesters and industrial forklifts, acting as main oil supply pump and pilot pump.
6. Common Faults & Replacement Suggestion
Replace the whole pump assembly if these problems occur: insufficient system pressure, slow cylinder movement, oil leakage at shaft seal and joint surface, abnormal grinding noise inside pump body.
