1.5KW 24V Hydraulic Power Unit (with Solenoid Valve) Detailed Overview
I. Core Specifications
• Power: 1.5KW (suitable for small-to-medium hydraulic equipment)
• Voltage: 24V DC (compatible with vehicle batteries or industrial low-voltage power systems)
• Motor Speed: Typically 2,500–3,000 RPM (varies by model, e.g., 2,500 RPM for some gear pumps)
• System Pressure: Up to 20 MPa (high-pressure design for applications requiring significant force)
• Flow Rate: 1.2–2.7 mL/rev (actual flow depends on pump displacement and motor speed; e.g., 1.2 mL/rev pump at 2,500 RPM delivers 3 L/min)
• Tank Capacity: 6 L (compact design to save space)
II. Key Components
1. DC Motor
• High-efficiency DC motor with low noise and stable operation.
• IP54 or higher protection rating for harsh environments; Class H insulation for high-temperature safety.
• Supports continuous operation with torque meeting hydraulic pump drive requirements.
2. Hydraulic Pump
• Gear pump design for stable flow and strong contamination resistance.
• Displacement options (e.g., 1.2 mL/rev, 2.7 mL/rev) to match flow demands.
3. Solenoid Valve
• Type: Typically 2-position 4-way or 2-position 5-way solenoid valves for directional control.
• Voltage: 24V DC, matching the power unit.
• Function: Electromagnetic control of hydraulic oil flow direction to actuate cylinders (e.g., extension/retraction).
• Response Time: Millisecond-level for rapid operation.
4. Tank and Valve Assembly
• Integrated tank design to minimize leakage risks; equipped with level gauges and air filters.
• Valve assembly includes relief valves and check valves for pressure regulation and pressure retention.
5. Control Module
• Optional PLC or relay control for automation.
• Supports manual/automatic switching for versatile operation.
III. Technical Features
1. Modular Design
• Integrated motor, pump, and valve assembly for easy installation and maintenance.
• Customizable expansion (e.g., sensors, wireless remote modules).
2. Energy Efficiency
• High-efficiency motor reduces energy consumption; solenoid valves consume power only during operation.
3. Safety Protections
• Relief valves prevent system overpressure, ensuring equipment safety.
• Configurable default solenoid valve states (e.g., normally closed/open) for safety compliance.
4. Low-Noise Operation
• Optimized motor structure and tank noise reduction for <65 dB operation.
IV. Typical Applications
1. Vehicle Hydraulic Systems
• Dump truck bed lifting, truck-mounted crane boom adjustment.
• Fire truck ladder elevation, aerial work platform stabilization.
2. Industrial Automation
• Pressure control for small presses and hydraulic machines.
• Workpiece clamping and handling in automated production lines.
3. Agricultural Machinery
• Tractor hydraulic hitch systems, harvester header lifting.
4. Logistics Equipment
• Forklift mast lifting, warehouse rack adjustment.
V. Selection Guidelines
1. Power Matching
• Choose power based on load demand, reserving 20% margin to avoid overload (e.g., select 1.5KW for 1.2KW load).
2. Pressure and Flow
• Calculate required pressure (P = F/A) and flow (Q = A × V) to select matching pump models.
• Example: Lifting 1-ton load with 0.01 m² piston area requires 1 MPa pressure; at 0.1 m/s piston speed, flow rate = 6 L/min (requires higher-displacement pump or increased motor speed).
3. Solenoid Valve Configuration
• Select 2-position 4-way or 2-position 5-way valves based on actuation requirements.
• For pressure retention, choose models with built-in pressure-retaining valves or add external retention circuits.
4. Environmental Adaptability
• Select IP65+ rating for outdoor use; enhance cooling for high-temperature environments.
VI. Maintenance and Troubleshooting
1. Routine Maintenance
• Replace hydraulic oil every 500 hours (recommend N46 anti-wear hydraulic oil).
• Regularly check oil level and filter clogging.
2. Common Faults and Solutions
• Motor fails to start: Verify power voltage, fuses, and wiring.
• Insufficient pressure: Inspect pump wear, relief valve settings, or oil leaks.
• Solenoid valve inaction: Check coil power supply and valve core blockage.
• Excessive noise: Tighten loose components or replace damaged bearings.
