CBGTG External Gear Pump

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4 year

Product details

CBGTG External Gear Pump

1. Product Overview

CBGTG series is a high-pressure heavy-duty hydraulic gear pump, developed as a core power component for engineering machinery and heavy-duty mobile hydraulic system. The pump adopts high-strength cast iron integrated housing, reinforced gear modulus and thickened side plates, greatly improving pressure resistance and shock resistance. This hydraulic gear pump is designed for continuous high-load operation, widely matched on wheel loaders, excavator auxiliary circuits, sanitation vehicles, agricultural machinery and stationary hydraulic power units. With universal installation dimensions, it can be used as a direct replacement for various OEM original pumps.

Model Explanation

CBGTG stands for reinforced high-pressure external gear pump series, upgraded structure for harsh working conditions.

2. Main Technical Parameters

Item Specification

Pump Type External meshing hydraulic gear pump

Rated Pressure 21 MPa

Max Intermittent Peak Pressure 28 MPa

Rotational Speed Range 600 ~ 3200 rpm

Internal Structure Floating side plate axial compensation, full radial hydraulic balance

Standard Seals HNBR nitrile rubber; FKM high temperature resistant seals optional

Applicable Oil ISO VG46, VG68 anti-wear hydraulic oil

Operating Temperature -20℃ ~ +90℃

Mounting Standard SAE diamond flange

Volumetric Efficiency ≥92%

3. Working Principle

When the input shaft drives the paired gears to rotate, vacuum forms in the suction cavity and draws oil from the hydraulic tank. Meshing gears transport fluid to the pressure outlet and supply pressurized oil to the hydraulic system. The floating side plates automatically compensate wear clearance on gear faces under system pressure, reducing internal leakage effectively and keeping the hydraulic gear pump stable during long-hour heavy-duty operation.

4. Core Advantages

1. Thickened cast iron pump body, strong pressure impact resistance, suitable for frequent pressure surge conditions.

2. Reinforced gear structure prolongs service life under heavy load.

3. Floating side plate design maintains high volumetric efficiency for a long period.

4. Excellent dirt resistance, perfect for dusty construction sites.

5. Standard flange and port layout, plug-and-play replacement without pipe modification.

6. Low flow pulsation, stable running and low noise.

5. Application Range

This hydraulic gear pump is widely used in hydraulic system of wheel loaders, road sweepers, garbage compactors, harvesters, large forklifts and industrial hydraulic stations, serving as main oil supply pump and pilot pump.

6. Common Faults & Replacement Advice

Replace the whole pump assembly if there is insufficient pressure, slow cylinder action, oil leakage on shaft seal and split surface, abnormal metal grinding noise inside pump housing.

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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4 year

Main Product: hydraulic motor, gear box , hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

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