CBK CBT Series Hydraulic Gear Pump | CBKA-F2.5 CBHZ-F23 CBFP-E671 | High Pressure External Gear Pump

Chengyuan Hydraulic presents the CBK/CBT Series (including CBKA, CBHZ, and CBFP models), a range of high-pressure external gear pumps engineered for superior durability and precision. Designed for mobile and industrial applications, these pumps feature axial clearance floating compensation to maintain peak efficiency. We prioritize 100% Original-place Interchangeability, allowing seamless replacement for international brands. Every unit undergoes 100% Simulated Condition Testing to ensure reliable performance under pressures up to 25MPa, delivering true value from the production end to the application site.

Technical Specifications (Bulleted List)

• Model Series: CBK, CBKA, CBT, CBHZ, CBFP

• Displacement Range: $0.8\text{ ml/r}$ to $32\text{ ml/r}$

• Rated Pressure: $20\text{ MPa (200 bar)}$

• Peak Pressure: $25\text{ MPa (250 bar)}$

• Maximum Speed: $3000\text{–}4000\text{ RPM}$

• Drive Shafts: Available in Keyed, Splined, or Tang drives

• Housing Material: High-strength extruded aluminum with cast iron end covers

• Weight: Approx. $1.5\text{ kg}$ to $5.5\text{ kg}$ depending on size

Key Technical Advantages

• Automatic Axial Compensation: The floating side plate design utilizes hydraulic pressure to seal gaps automatically, maintaining over $90\%$ volumetric efficiency even in high-temperature environments.

• Heavy-Duty DU Bearings: High-performance composite DU bearings provide excellent radial load capacity and shock resistance, significantly extending the service life compared to standard needle bearings.

• Precision-Ground Gear Sets: Manufactured from high-tensile alloy steel with precision grinding, our gears ensure minimal vibration and Ultra-low Noise Levels (typically under 75dB).

• Modular Multi-Stage Capability: The compact design allows for single, tandem, or triple pump configurations, providing multiple flow outputs from a single drive source to optimize hydraulic circuit density.

Application Areas

• Material Handling: Forklift main lift pumps, electric stackers, and pallet jacks.

• Agricultural Equipment: Tractor 3-point hitches and harvester control circuits.

• Construction Machinery: Steering assist for road rollers and mini-excavator attachments.

• Hydraulic Power Units (HPU): Car lifts, log splitters, and docking ramps.

Expert Maintenance Tips

• Filtration Standard: Maintain oil cleanliness at ISO 4406 20/18/15 or better. Use a $10\text{–}25\text{ }\mu\text{m}$ filter to prevent premature wear on the side plates.

• Pre-start Lubrication: Never run the pump dry. Fill the pump with clean hydraulic oil through the inlet and rotate the shaft by hand before initial startup to ensure lubrication.

• Check Rotation: Verify the rotation direction (CW or CCW) against your prime mover. Operating the pump in the wrong direction will lead to immediate shaft seal failure.