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| Customization: | Available |
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| Type: | Log Splitter Hydraulic Pump |
| Transport Package: | Wooden Box |
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The hydraulic pump is the heart of a hydraulic wood splitter, converting mechanical energy (from the engine, electric motor or tractor PTO) into hydraulic energy. The pressurized hydraulic oil pushes the hydraulic cylinder, driving the wedges through the logs, splitting them into smaller pieces.
Key Features
Positive Displacement: Log splitter pumps are almost universally positive displacement pumps, meaning they deliver a fixed amount of fluid with each rotation. This ensures constant pressure and flow.
Gear Pumps (Most Common): Gear pumps are the most common type used in log splitters because they are rugged, relatively low cost, and able to produce the high pressures needed to split logs. They consist of two meshing gears that capture the fluid and force it around the gears.
Two-Stage/High-Low Pumps (Very Common): Many log splitter pumps are two-stage or "high-low" pumps. This design offers the following features:
High Flow (Low Pressure): The cylinder extends quickly (closes quickly) when the wedges are not yet in contact with the log.
Low Flow (High Pressure): When the wedges meet resistance (logs), they automatically switch to lower flow and higher pressure to provide the force needed to split the log. This optimizes splitting speed and power.
Direct Drive or Belt Drive: Usually driven directly by the engine crankshaft or through a belt system.
Durable: Made of durable materials such as cast iron or aluminum, they are designed to withstand the high pressures and rigors of log splitting operations.
How it works
The hydraulic pump for a log splitter works by creating a flow of pressurized hydraulic oil, which is then directed to the hydraulic cylinder:
Intake: As the pump's gears rotate, a vacuum is created, drawing hydraulic oil from the reservoir (tank) into the inlet.
Pressure buildup: The rotating gears capture the hydraulic oil and force it through the pump's internal passages toward the outlet, creating high pressure.
Flow to the hydraulic cylinder: The pressurized hydraulic oil is directed through a hydraulic hose to the log splitter's control valve.
Cylinder actuation: When the operator operates the control valve, pressurized hydraulic oil is delivered to one side of the hydraulic cylinder's piston, causing it to extend and push the log splitting wedge through the log. When the valve is reversed, fluid is directed to the other side of the piston, retracting the wedge.
Two-stage operation (high-low): In a two-stage pump, an internal mechanism (usually a small pressure relief valve) senses the buildup of pressure. When pressure is low (the wedge is close to the log), both pumps deliver high flow. When pressure builds (the wedge strikes the log), one of the pump stages is bypassed and the pump effectively operates as a single-stage, high-pressure pump, providing maximum thrust.
Benefits of a Dedicated Log Splitter Hydraulic Pump
High Thrust Output: Designed to produce the tremendous hydraulic pressure (typically 2,500 to 3,500 PSI or more) required to split tough, knotty logs.
Optimized Splitting Speed (with High-Low Pump): The two-stage pump extends the wedge quickly when no resistance is encountered, then efficiently applies maximum thrust, significantly speeding up the splitting process.
Reliable Performance: Provides consistent hydraulic power essential for repetitive splitting tasks.
Rugged: Designed to withstand the shock loads and continuous operation inherent in splitting operations.
Compact Design: Typically designed to fit neatly into the overall log splitter unit.
Applications
Log Splitter Hydraulic Pumps are designed for the following applications:
Hydraulic Log Splitter: This is their primary and almost exclusive application, ranging from small household electric log splitters to large commercial, engine-driven or PTO-driven log splitters.
Woodworking Equipment: Occasionally used in other small, specialized woodworking machines that require high intermittent forces, but usually custom designed.
Maintenance
Proper maintenance of the hydraulic pump and system is critical to the life and performance of the wood splitter:
Hydraulic Fluid:
Check the oil level regularly: Make sure the oil level in the hydraulic reservoir is always within the recommended range.
Use the correct type of fluid: Always use the type of hydraulic fluid specified by the wood splitter manufacturer. Using the wrong type can damage the pump and system.
Change the hydraulic fluid regularly: Change the hydraulic fluid according to the manufacturer's change schedule (for example, annually or after a certain number of hours) to ensure optimal viscosity and prevent contamination.
Filter:
Check and replace the filter: Many wood splitters are equipped with a hydraulic filter (usually located in the return line). Check and replace this filter regularly to prevent contaminants from entering and damaging the pump and cylinder.
Hoses and Connections:
Check for leaks: Regularly check all hydraulic hoses, fittings, and connections for leaks. Leaks reduce efficiency and can cause the pump to starve.
Check for damage: Check the hoses for cracks, wear, or kinks that can restrict fluid flow or cause failure.
Pump Mounting:
Ensure a secure mount: Check that the pump is securely mounted and aligned with its power source (engine shaft, motor shaft). Vibrations caused by a loose mount can cause premature wear.
Keep System Clean: Prevent dirt, dust, and debris from entering the hydraulic system. Clean the area around the fill cap before adding fluid.
Wipe Down Spills: Clean up any hydraulic fluid spills promptly.
| Implement | Pump Type | Flow (L/min) | Pressure (bar) |
|---|---|---|---|
| Front Loader | Gear | 25-40 | 180-200 |
| Backhoe | Piston | 40-60 | 250-300 |
| Sprayer | Vane | 15-25 | 120-150 |
| Planter | Gear | 10-20 | 100-120 |
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