CBN-F314 CBN-F316 CBN-F320 CBN-F325 Hydraulic Gear Pump | High Pressure External Gear Pump

The CBN-F300 Series High-Pressure Gear Pumps (including CBN-F314, F316, F318, F320, and F325) from Chengyuan Hydraulic are the heart of reliable hydraulic systems. Engineered with a high-strength aluminum alloy body, these external gear pumps are specifically designed for open-circuit applications. We guarantee 100% dimensional and functional interchangeability with industry-standard models. To ensure maximum uptime, every pump undergoes 100% simulated duty-cycle testing at rated pressures, guaranteeing OEM-level performance for both industrial and agricultural machinery.

Technical Specifications (Bulleted List)

• Displacement Options: $14\text{, }16\text{, }18\text{, }20\text{, }25\text{ mL/r}$

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

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

• Rated Speed: $2000\text{–}2500\text{ RPM}$

• Max Speed: $3000\text{ RPM}$

• Min Speed: $600\text{ RPM}$

• Volumetric Efficiency: $\ge 92\%$

• Shaft Types: Straight Keyed, Splined, or Tang Shaft

• Port Options: Flange or Threaded Ports

Key Technical Advantages

• Axial Clearance Compensation: Utilizing high-precision floating side plates, the pump automatically adjusts the gap between the side plates and gear faces based on output pressure, maintaining peak volumetric efficiency throughout the pressure range.

• Enhanced Aluminum Housing: The body is constructed from high-tensile extruded aluminum alloy, providing excellent heat dissipation and structural rigidity to withstand high-pressure shocks and fatigue.

• Dual DU Bearing Support: The gear shafts are supported by premium DU bushings, offering high load-bearing capacity and self-lubricating properties, significantly extending service life under heavy-duty cycles.

• Precision-Ground Gear Sets: Gears are CNC-ground and heat-treated to ensure smooth engagement, resulting in low noise levels (as low as 75dB) and minimized pressure ripples for smoother system operation.

Application Areas

• Agricultural Machinery: Main pumps for tractors, grain harvesters, and baler hydraulic systems.

• Construction Equipment: Auxiliary pumps for mini-excavators, forklift attachment controls, and paving machinery.

• Industrial Power Units: Scrapyard balers, hydraulic presses, and lift platforms.

Expert Maintenance Tips

• Initial Priming: Upon first installation, rotate the pump manually or jog the motor under no-load conditions to bleed air from the system. This prevents cavitation-induced damage to the floating side plates.

• Filtration Management: The CBN-F series requires clean fluid to function optimally. System filtration should be maintained at $25\text{ }\mu\text{m}$ or better. Regularly monitor hydraulic oil for emulsification, which can degrade bearing performance.