CBHST Series Gear Pump
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The CBHST1 ISO hydraulic gear pump is designed for heavy-duty hydraulic systems where strength, efficiency, and installation compatibility are important. Its cast iron body provides better mechanical strength than many light-duty aluminum gear pump types, making it suitable for harsh working environments and continuous hydraulic operation.
This gear pump design adopts ISO and UNI standard assembly dimensions, which helps simplify installation for equipment manufacturers, repair workshops, and hydraulic system integrators. The pump is available with rear port and side port designs, allowing flexible hydraulic pipeline layout in compact machinery spaces.
The CBHST1 series offers seven displacement options: 34, 43, 51, 63, 80, 100, and 120 mL/r. Users can select the proper model according to hydraulic flow demand, working pressure, motor speed, and installation space. With 23 MPa rated pressure, 25 MPa maximum pressure, and >92% volumetric efficiency, this pump provides stable performance for mobile hydraulic equipment.
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CBHST Series Gear Pump
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Series Advantages
Product Advantages
1. Heavy-Duty Cast Iron Construction
The CBHST1 ISO gear pump is made from sturdy cast iron, giving it strong pressure resistance, high durability, and better suitability for mobile machinery and heavy-duty hydraulic applications.
2. ISO and UNI Standard Mounting
The pump follows ISO and UNI standard assembly dimensions with an ISO 4-hole flange design. This makes installation, replacement, and system matching easier for OEMs and maintenance teams.
3. Multiple Displacement Options
With displacement options from 34 to 120 mL/r, the CBHST1 series can match different hydraulic flow requirements in dump trucks, cranes, aerial platforms, and municipal vehicles.
4. Reliable Pressure Performance
The pump supports 23 MPa rated pressure and 25 MPa maximum pressure, making it suitable for demanding hydraulic systems that require stable output under load.
5. High Volumetric Efficiency
With volumetric efficiency higher than 92%, this hydraulic gear pump helps reduce internal leakage and improve hydraulic system performance.
6. Flexible Port Design
The CBHST1 series supports convenient rear and side port designs, helping engineers optimize hydraulic hose routing and installation space.
7. Multiple Rotation and Shaft Options
The pump can be configured with clockwise, counterclockwise, or bidirectional rotation. H1 and H2 shaft types are available to match different drive requirements.
The CBHST1 ISO gear pump is made from sturdy cast iron, giving it strong pressure resistance, high durability, and better suitability for mobile machinery and heavy-duty hydraulic applications.
2. ISO and UNI Standard Mounting
The pump follows ISO and UNI standard assembly dimensions with an ISO 4-hole flange design. This makes installation, replacement, and system matching easier for OEMs and maintenance teams.
3. Multiple Displacement Options
With displacement options from 34 to 120 mL/r, the CBHST1 series can match different hydraulic flow requirements in dump trucks, cranes, aerial platforms, and municipal vehicles.
4. Reliable Pressure Performance
The pump supports 23 MPa rated pressure and 25 MPa maximum pressure, making it suitable for demanding hydraulic systems that require stable output under load.
5. High Volumetric Efficiency
With volumetric efficiency higher than 92%, this hydraulic gear pump helps reduce internal leakage and improve hydraulic system performance.
6. Flexible Port Design
The CBHST1 series supports convenient rear and side port designs, helping engineers optimize hydraulic hose routing and installation space.
7. Multiple Rotation and Shaft Options
The pump can be configured with clockwise, counterclockwise, or bidirectional rotation. H1 and H2 shaft types are available to match different drive requirements.
Technical Specifications
| Model | Nominal Displacement | Rated Pressure | Max Pressure | Rated Speed | Max Speed | Volumetric Efficiency | L | L1 | Inlet Port | Outlet Port |
|---|---|---|---|---|---|---|---|---|---|---|
| CBHST-34 | 34 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 186 mm | 131 mm | D41, G3/4 | D41, G3/4 |
| CBHST-43 | 43 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 189 mm | 134 mm | D41, G3/4 | D41, G3/4 |
| CBHST-51 | 51 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 202 mm | 133 mm | D44, G1 | D44, G1 |
| CBHST-63 | 63 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 205 mm | 137 mm | D44, G1 | D44, G1 |
| CBHST-80 | 80 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 211 mm | 145 mm | D55, G1 1/4 | D55, G1 1/4 |
| CBHST-100 | 100 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 219 mm | 149 mm | D55, G1 1/4 | D55, G1 1/4 |
| CBHST-120 | 120 mL/r | 23 MPa | 25 MPa | 2000 r/min | 2500 r/min | >92% | 231 mm | 147 mm | D55, G1 1/4 | D55, G1 1/4 |
Application Industries
Application Scenarios
Dump Trucks
The CBHST1 ISO gear pump is widely used in dump truck hydraulic systems, especially for tipping cylinders and body lifting circuits that require strong pressure and stable oil flow.
Truck-Mounted Cranes
This hydraulic gear pump is suitable for truck-mounted cranes and loading cranes, providing reliable hydraulic power for lifting, rotation, extension, and auxiliary functions.
Aerial Platforms
For aerial work platforms and lifting platforms, the CBHST1 gear pump helps provide stable hydraulic power for lifting, leveling, and positioning systems.
Municipal Vehicles
The pump can be used in garbage trucks, road sweepers, snow removal vehicles, sanitation vehicles, and other municipal equipment requiring durable hydraulic power transmission.
Construction and Mobile Machinery
The CBHST1 ISO gear pump is suitable for construction vehicles, special-purpose trucks, hydraulic power units, and mobile hydraulic systems requiring strong cast iron pump construction.
Industrial Hydraulic Systems
This pump can also be applied in industrial hydraulic stations, press systems, material handling equipment, and customized hydraulic power packs.