The CBNA-13/3.0 Log Splitter Hydraulic Pump is a two-stage hydraulic gear pump designed for efficient operation in log splitters, presses, and other equipment requiring rapid cylinder movement at low pressure followed by high-pressure output. It features a large displacement low-pressure pump and a small displacement high-pressure pump, delivering a maximum flow rate of 13 GPM and a pressure rating of 3,000 PSI at 3,600 RPM. The hydraulic log splitter pump automatically shifts from low-pressure (approximately 650 PSI) to high-pressure mode to optimize power consumption.
Constructed with a cast iron front and aluminum body, it ensures durability and corrosion resistance. It has a 1/2″ diameter x 1.5″ long keyed shaft, a 1″ inlet port, and a 1/2″ NPT outlet port, compatible with AW-32 or AW-46 hydraulic fluids. Suitable for 5 to 35-ton log splitters, it requires a minimum 6.5 HP engine and a 4-bolt mounting flange.
CBNA-13/3.0 Log Splitter Hydraulic Pump Specifications
| Applied to: | Log Splitters |
| OEM Ref. No.: | CBNA-13/3.0 |
| Nominal Displacement· | 13/3.0ml/r |
| Maximum Pressure: | 2.5/20MPa |
| Highest Rotational Speed: | 3600r/min |
| Fuel Feed Hole: | Φ25.4 |
| Fuel Discharge Hole: | NPT1/2 |
| Direction of Rotation: | Right (Clockwise) |
2 Stage Hydraulic Pump Log Splitter Parts
- Gear Sets (High and Low Pressure): The log splitter hydraulic pump contains two gear sets: a larger one for high-volume, low-pressure flow and a smaller one for low-volume, high-pressure flow. These gears, housed in a cast iron or aluminum body, mesh to drive hydraulic fluid, enabling efficient splitting by balancing speed and force. The high-pressure set typically handles up to 3600 PSI, while the low-pressure set ensures rapid cylinder movement.
- Unloading Valve: The unloading valve automatically diverts high-volume flow from the low-pressure gear set when high pressure is needed, reducing engine strain. This internal valve, often integrated into the log splitter pump housing, ensures smooth transitions between stages, enhancing efficiency and protecting the system from overpressure.
- Check Valve: The check valve directs fluid flow from the low-pressure gear set to the high-pressure gear set or system, preventing backflow. Made of durable materials like steel, it ensures seamless stage switching, maintaining consistent hydraulic pressure and flow for reliable log splitter operation.
- Shaft and Couplings: The hydraulic log splitter pump's drive shaft, often 1/2-inch or 1-inch in diameter with a keyway, connects to the engine or motor. Couplings ensure secure, vibration-free power transfer, supporting speeds up to 3600 RPM. This setup ensures durability and compatibility with small engines.
- Inlet and Outlet Ports: Standardized ports facilitate fluid intake and output. Constructed from corrosion-resistant materials, these ports ensure leak-free connections and compatibility with various log splitter systems, enhancing reliability and ease of installation across log splitters.
- Housing and Seals: The hydraulic pump for log splitter housing, typically aluminum alloy or cast iron, encases the gears and valves, providing durability and corrosion resistance. High-quality seals prevent fluid leaks, maintaining system pressure and efficiency.
How to Choose the Right Hydraulic Pump for Log Splitter?
- Determine the Required Flow Rate: The flow rate, measured in gallons per minute (GPM), dictates how quickly the hydraulic cylinder extends and retracts. For log splitters, a pump with 5-16 GPM is typically sufficient, depending on the splitter's size and speed requirements. Higher GPM ratings increase splitting speed but may require a more powerful engine, impacting fuel efficiency and cost.
- Assess Pump Pressure Rating: Hydraulic log splitter pumps are rated by their maximum pressure, typically in pounds per square inch (PSI). Log splitters generally need 2,000-3,500 PSI to handle tough wood. Ensure the pump's PSI matches or exceeds the cylinder's requirements to avoid underperformance or damage.
- Match Pump to Engine Power: The log splitter hydraulic pump must be compatible with the engine's horsepower (HP). A mismatch can lead to inefficiencies or overheating. For example, a 5 HP engine pairs well with a 5-8 GPM pump, while larger engines support higher flow rates.
- Choose Between Pump Types: Log splitters commonly use gear pumps or two stage log splitter pumps. Gear pumps are simpler and cheaper but less efficient for heavy loads. 2 stage log splitter pumps adjust flow and pressure dynamically, offering better performance for frequent or heavy-duty splitting.
- Consider Pump Mounting and Compatibility: Ensure the log splitter pump's mounting style (e.g., SAE flange or direct-drive) aligns with your log splitter's design. Check shaft size, rotation direction, and port sizes to guarantee seamless integration with the hydraulic system and engine.
- Evaluate Durability and Maintenance Needs: Select a hydraulic pump for log splitter made from robust materials like cast iron to withstand continuous use. Consider maintenance requirements, such as seal replacements or oil changes, to ensure long-term reliability and cost-effectiveness for your log splitter.
