Loader Hydraulic Gear Pump | CBN-F310-CFLHL CBN-F312 CBN-E320 | CMF-F308

LIC Hydraulic’s CBN and CMF Series high-pressure gear pumps/motors are the heavy-duty workhorses for compact loaders, forklifts, and agricultural machinery. The CBN Series features a high-tensile extruded aluminum body and hydraulic floating bushings that automatically compensate for axial clearances, maintaining over 92% volumetric efficiency even under thermal stress. We provide 100% Drop-in Interchangeability for specific codes like CBN-F310-CFLHL and CBN-E320-ALPR. Designed to handle peak pressures up to 25 MPa, every unit is factory-tested under load to ensure consistent hydraulic power for steering and implement functions in the harshest environments.

Technical Specifications (Bulleted List)

• Series Models: CBN-F310, CBN-F312, CBN-F314, CBN-E320, CMF-F310.

• Rated Pressure: $16\text{–}20\text{ MPa}$ ($2320\text{–}2900\text{ PSI}$).

• Max Pressure: $25\text{ MPa}$ ($3625\text{ PSI}$).

• Displacement Range: $8\text{ ml/r}$ to $20\text{ ml/r}$.

• Mounting: SAE Standard or Rhombic Flanges (A/C types).

• Direction: Clockwise (P) or Counter-Clockwise (R) options available.

Key Technical Advantages

• Extruded Aluminum Alloy Body: Offers a superior strength-to-weight ratio and excellent heat dissipation, keeping hydraulic temperatures stable during continuous loading cycles.

• Pressure-Balanced Floating Bushings: High-precision internal bushings adapt to system pressure, minimizing internal leakage and maximizing service life compared to standard gear pumps.

• Micro-Finished Gears: Hardened gear sets are precision-ground to reduce friction and hydraulic ripple, leading to quieter operation and smoother steering control.

• Global Compatibility: Extensively used as steering auxiliary pumps or pilot power sources for leading loader brands like LiuGong, Lonking, and SDLG.

Application Areas

• Wheel Loaders: Powering steering orbitrols and pilot control systems.

• Forklift Hydraulics: Main pump for lifting, tilting, and side-shifting attachments.

• Agricultural Equipment: Hydraulic lifts for tractors and harvesters.

Expert Maintenance Tips

• Check Rotation: Verify the rotation direction (L or R) before installation. Viewed from the shaft end, if the inlet is on the left, it is Right-hand (CW) rotation. Installing the wrong direction will blow the shaft seal immediately.

• Seal Integrity: For models like CBN-E320, ensure the suction flange O-ring is seated perfectly. Any air intake on the suction side will cause foaming, “whining” noises, and rapid cavitation damage.

• Fluid Cleanliness: Change hydraulic oil every 1000 operating hours. If the fluid contains metallic debris, the entire system must be flushed. A new pump will fail within hours if exposed to contaminated oil from a previous pump failure.

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