CBF-F420-ALP CBF-F425-ALP CBF-F416-ALP Hydraulic Gear Pump | High Pressure External Gear Pump

The CBF-F4 Series high-pressure external gear pumps by Chengyuan Hydraulic are engineered as robust power sources for diverse hydraulic systems. This series, ranging from $14\text{ ml/r}$ to $25\text{ ml/r}$ (e.g., CBF-F420, CBF-F425), is specifically designed for mobile and industrial applications. At Chengyuan, we prioritize technical authenticity, ensuring 100% original-place interchangeability with global standard pumps. Every unit undergoes 100% simulated condition testing to guarantee that volumetric efficiency and mechanical durability meet or exceed OEM standards, providing a seamless drop-in replacement for your machinery.

Technical Specifications (Bulleted List)

• Model Range: CBF-F414, CBF-F416, CBF-F418, CBF-F420, CBF-F425 (ALP)

• Displacement: $14, 16, 18, 20, 25\text{ ml/rev}$

• Rated Pressure: $20\text{ MPa (2900 psi)}$

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

• Rated Speed: $2000\text{ RPM}$

• Max Speed: $2500\text{ RPM}$

• Shaft Types: Splined (A) or Straight Keyed (L)

• Mounting Type: Flange Mounting (P) – ALP Standard

• Material: High-tensile Extruded Aluminum Body with Cast Iron Covers

• Volumetric Efficiency: $\ge 92\%$

Key Technical Advantages

• Axial Clearance Compensation: Utilizing floating bushings and pressure-balanced side plates, the pump automatically adjusts internal clearances based on discharge pressure. This ensures peak Volumetric Efficiency even under continuous $20\text{ MPa}$ loads.

• High-Strength Extruded Housing: The body is crafted from specialized high-tensile aluminum alloy, providing excellent fatigue resistance. This prevents housing distortion or cracking during high-pressure pulsations.

• Dual DU Composite Bearings: Equipped with high-capacity self-lubricating DU bushings, these pumps offer superior radial support and shock resistance, significantly extending the Service Life under harsh conditions.

• Precision Gear Profiles: The gear sets undergo meticulous grinding and nitriding processes. This results in ultra-smooth engagement, ensuring steady flow and Low Noise Operation.

Application Areas

• Agricultural Machinery: Tractor hitch systems and harvester hydraulic drives.

• Construction Equipment: Steering pumps for wheel loaders and pilot systems for mini-excavators.

• Industrial Units: Hydraulic balers, small-to-medium power packs, and outrigger controls for mobile cranes.

Expert Maintenance Tips

• Rotation Verification: Always confirm the pump’s rotation direction (CW or CCW) before installation. Incorrect rotation will cause immediate shaft seal failure.

• Filtration Integrity: The CBF series is sensitive to particulate contamination. Maintain system filtration at $25\text{ }\mu\text{m}$ or better to protect the precision-compensated plates from scoring.

• Suction Line Check: Ensure the suction line is adequately sized and airtight. Excessive suction resistance can lead to cavitation, resulting in sharp abnormal noise and severe internal damage.