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CBG3 Series gear pumps

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Description

Overview

The CBG3 gear pump is a high-performance medium and high-pressure hydraulic component, serving as a core power element in hydraulic systems. Characterized by its simple structure, reliable operation, excellent impact resistance, and easy maintenance, this series is widely applied in hydraulic devices of construction machinery, marine machinery, hoisting machinery, mining machinery, and environmental sanitation equipment. It can be configured as a single pump or a duplex pump to meet diverse system requirements.

Core Features

  • Sturdy Construction: The pump housing adopts liquid extrusion molding technology and high-strength ductile iron, ensuring strong load-bearing capacity. The gears are made of high-strength alloy steel, paired with high-performance roller bearings, which significantly enhance overload resistance, pollution resistance, and service life.
  • High Efficiency & Stability: Equipped with an automatic axial clearance compensation mechanism, the pump maintains high volumetric efficiency (≥92%) and total efficiency (≥83%) during long-term operation. The optimized involute tooth profile design (module customized, pressure angle 30°) ensures stable flow output, small pressure pulsation, and strong self-priming capacity.
  • Low Noise & Durability: Precision machining and optimized structural design effectively reduce wear and operating noise, making it suitable for harsh working conditions. It operates stably in a wide temperature range of -20℃ to 80℃, with recommended working oil temperature between 40℃ and 65℃.
  • Flexible Configuration: Multiple shaft extension types are available, including plain key, rectangle spline, involute spline, etc. The mounting form and oil port connection adopt standard flange designs for easy installation and replacement.

Model Coding Explanation

Example: CBG3100-B-F-H-R
  1. Product Code: CBG – Standard gear pump product identifier.
  2. Nominal Displacement: 3100 – The first digit “3” represents the series, and the following digits “100” indicate nominal displacement of 100 ml/r.
  3. Mounting Form: B – Square flange mounting (standard configuration).
  4. Oil Port Form: F – Flange connection for oil ports.
  5. Shaft End Form: H – Rectangle spline; P – Plain key (other types available on request).
  6. Rotation Direction: R – Left rotation (counterclockwise); Right rotation (clockwise) is omitted as the default.

Key Performance Specifications

Model
Nominal Displacement (ml/r)
Rated Pressure (MPa)
Max Pressure (MPa)
Rated Speed (r/min)
Max Speed (r/min)
Rated Power (kW)
Weight (kg)
CBG3100
100
16
20
2000
2400
58.1
42
CBG3125
125
12.5
16
2000
2400
72.6
43.5
CBG3140
140
12.5
16
2000
2400
81.5
44.5
CBG3160
160
12.5
16
2000
2400
90.0
45.5
CBG3200
200
12.5
16
2000
2400
90.8
48.5
Note: Working oil viscosity should be 20~40 m㎡/s, and filtration precision shall not be lower than 25 microns. Suitable for hydraulic oil (YA-N68/GB2512-81) or equivalent lubricants.

Application Fields

The CBG3 series gear pump is widely used in hydraulic systems of loaders, excavators, rollers, forklifts, cranes, bulldozers, environmental sanitation vehicles, mining equipment, and marine auxiliary machinery. It provides stable hydraulic power support for various heavy-duty equipment, ensuring efficient and reliable operation in complex working environments.

Shipping & Delivery

Process steps:
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.