CBHL Series Gear Pump
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CBHL Series Gear Pump
1. Overview
2. Product Features
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Advanced Structural Design: It adopts a three-piece structure, with a high-strength die-cast aluminum alloy pump body. This design effectively reduces the overall weight of the pump while ensuring sufficient structural strength, achieving the characteristics of small volume and light weight, which is convenient for installation and layout in limited space.
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High Volumetric Efficiency: Equipped with wear-resistant and pollution-resistant SF composite material rolled DU bearings, which have excellent impact resistance and self-lubricating performance. The floating pressure side plate and tooth tip “scraping” technology can control the axial clearance within an optimal range under various working conditions, significantly improving the volumetric efficiency of the pump.
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Durable and Reliable Performance: The front and rear pump covers are connected to the pump body as a whole by two pins and eight screws, which simplifies disassembly, assembly and maintenance processes, reducing maintenance time and costs. The key components are made of high-quality wear-resistant materials, ensuring long service life and strong load-bearing capacity even under high-pressure working conditions.
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Low Noise and Stable Operation: Optimized gear tooth profile design and precise machining technology reduce vibration and noise during operation. The radial hydraulic balance structure further enhances the stability of the pump, making it run smoothly in long-term continuous work.
3. Model Interpretation
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Code Segment
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Meaning
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Specific Specifications
|
|---|---|---|
|
CB
|
Product Name
|
External Gear Pump
|
|
HL
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Series Number
|
HL Series (Medium and High Pressure Grade)
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|
※
|
Nominal Displacement
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50, 60, 70, 80, 90, 100 (Unit: ml/r)
|
|
※
|
Shaft Extension Type
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1: Type Ⅰ Flat Key; 2: Type Ⅱ Flat Key
|
|
※
|
Mounting Type
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F: Diamond Flange
|
|
※
|
Spigot Size
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125: φ125h8; 130: φ130f8
|
|
※
|
Connection Type
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F: Flange Connection; L: Threaded Connection
|
|
※
|
Rotation Direction
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Clockwise (Omitted); X: Counterclockwise
|
4. Technical Parameters
|
Model
|
Nominal Displacement (ml/r)
|
Rated Pressure (MPa)
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Rated Speed (r/min)
|
Drive Power (KW)
|
Weight (kg)
|
||
|---|---|---|---|---|---|---|---|
|
6.3MPa
|
10MPa
|
16MPa
|
|||||
|
CBHL50
|
51.76
|
16
|
1800
|
10.65
|
16.91
|
27.06
|
19.5
|
|
CBHL60
|
61.71
|
16
|
1800
|
12.7
|
20.17
|
32.27
|
20
|
|
CBHL70
|
71.67
|
16
|
1800
|
14.75
|
23.42
|
37.47
|
20.5
|
|
CBHL80
|
81.62
|
16
|
1800
|
16.8
|
26.68
|
42.68
|
21
|
|
CBHL90
|
91.57
|
16
|
1800
|
18.85
|
29.93
|
47.88
|
21.5
|
|
CBHL100
|
101.53
|
16
|
1800
|
20.9
|
33.18
|
53.09
|
22
|
4.1 Threaded Connection Dimensions (mm)
|
Model
|
Dimension A
|
Dimension B
|
|---|---|---|
|
CBHL50
|
233
|
129
|
|
CBHL60
|
238
|
134
|
|
CBHL70
|
243
|
139
|
|
CBHL80
|
248
|
144
|
|
CBHL90
|
253
|
149
|
|
CBHL100
|
262
|
154
|
5. Application Fields
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Construction machinery: Loaders, excavators, road rollers, cranes, etc.
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Mining machinery: Mine hoists, conveyor equipment, etc.
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Agricultural machinery: Tractors, combine harvesters, agricultural irrigation equipment, etc.
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Logistics and transportation equipment: Forklifts, hydraulic trucks, etc.
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Light industry and environmental sanitation equipment: Sanitation vehicles, packaging machinery, etc.
6. Usage Notes
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The hydraulic oil should meet the specified requirements: Use L-HM 46# hydraulic oil in summer and L-HM 32# hydraulic oil in winter. Replace the hydraulic oil in time if it is contaminated or deteriorated.
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The filtration precision of the hydraulic system should be 25 microns or higher to prevent impurities from entering the pump and causing wear.
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The working temperature of the hydraulic oil should be controlled between -25°C and 80°C to avoid affecting the pump’s performance and service life.
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Before starting the pump, ensure that the inlet and outlet oil circuits are unobstructed, and add a protective cover to the oil inlet and outlet when not in use.
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Regularly check the tightness of the pump’s connecting parts and the wear of key components, and perform maintenance and replacement in a timely manner.

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.
