CBGTB2 External Gear Pump
2 week ago
Product details
CBGTB2 External Gear Pump
1. Product Overview
The CBGTB2 is a medium-high pressure external hydraulic gear pump developed based on CBGT series, originally manufactured by HCHC Changyuan Hydraulic, widely recognized in construction machinery industry. This hydraulic gear pump adopts high-strength wear-resistant cast iron housing and patented floating side plate structure, with B2 grade compact pressure design. It features stable pressure output, excellent anti-contamination performance and long service life, perfectly suited for continuous operation under variable load and frequent pressure surges. It is commonly used as main oil supply pump and pilot pump for dump trucks, compact loaders, sanitation vehicles, agricultural machinery and stationary hydraulic power units. With standardized SAE flange installation dimensions, it is fully interchangeable with original OEM pumps for aftermarket replacement.
Model Code Explanation
- CBGT: Series code of high-pressure cast iron external gear pump
- B2: Compact structure grade, medium-high pressure rating with flange port arrangement
2. Main Technical Parameters
Item Specification
Pump Type External meshing hydraulic gear pump
Rated Working Pressure 20 MPa (200 bar)
Maximum Intermittent Peak Pressure 25 MPa (250 bar)
Rotational Speed Range 800 ~ 3000 rpm
Internal Structure Floating side plate axial clearance compensation, full radial hydraulic 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 ≥92% under rated working condition
Shaft options Key shaft, spline shaft optional
3. Working Principle
Driven by the input shaft, a pair of precision involute gears rotate synchronously. Negative pressure is generated in the suction chamber, drawing hydraulic oil from the reservoir. Gear teeth carry oil to the pressure outlet and deliver pressurized fluid to all branches of the hydraulic system. The floating side plates automatically compensate axial wear clearance caused by long-hour operation, minimize internal leakage effectively, and maintain high efficiency of the hydraulic gear pump even after thousands of working hours.
4. Core Advantages
1. High tensile cast iron pump body, strong resistance to pressure impact and vibration, ideal for harsh construction sites.
2. Patented floating side plate design keeps low internal leakage and stable volumetric efficiency.
3. Optimized gear tooth profile realizes low noise and small flow pulsation during operation.
4. Excellent dust resistance and anti-pollution capacity, adapts well to dusty outdoor working conditions.
5. Standard flange and oil port layout, plug-and-play installation without modifying pipelines.
6. Compact overall dimension, suitable for equipment with limited installation space.
7. Simple structure, low failure rate and convenient field maintenance.
5. Application Range
This hydraulic gear pump is widely applied in the hydraulic system of tipper dump trucks, mini wheel loaders, road sweepers, garbage compactors, harvesters and industrial forklifts, serving as main power unit and pilot pressure supply component.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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