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YZA10-20 Hydraulic Power Unit
YZA10-20 hydraulic power unit The YZA10-20 is a compact Hydraulic Power Unit (HPU) designed to provide the necessary hydraulic pressure to operate rail clamps, storm brakes, or other hydraulic actuators. It serves as the "heart" of the hydraulic braking system, converting electrical...
Description
YZA10-20 hydraulic power unit
The YZA10-20 is a compact Hydraulic Power Unit (HPU) designed to provide the necessary hydraulic pressure to operate rail clamps, storm brakes, or other hydraulic actuators. It serves as the "heart" of the hydraulic braking system, converting electrical energy into hydraulic energy.
The model number breakdown is as follows:
YZA: The series designation for Hydraulic Power Units (specifically designed for brake/clamp applications).
10: The Nominal Flow Rate of 10 L/min (Liters per minute).
20: The System Pressure Rating of 20 MPa (Megapascals, approx. 200 bar).
Products Description
💡 Key Features & Characteristics
High-Pressure Output:
Pressure: Capable of generating up to 20 MPa of hydraulic pressure. This high pressure is essential for generating the massive clamping forces required by rail clamps (like the YJGQ series) or heavy-duty brakes.
Flow: Provides a flow rate of 10 L/min, ensuring the actuator (cylinder) extends or retracts at a functional speed.
Integrated Design:
Components: The unit typically integrates an electric motor, a hydraulic pump (gear or piston type), a hydraulic tank (reservoir), and a valve block (containing relief valves and directional control valves) into a single compact assembly.
Mounting: Designed for vertical or horizontal mounting, often directly attached to the machinery or mounted nearby on a bracket.
Control & Safety:
Voltage: Standard industrial power supply of AC 380V / 50Hz (3-Phase).
Protection: Equipped with thermal overload protection for the motor and pressure relief valves to prevent system over-pressurization.
Operation: Can be controlled manually (via push buttons) or automatically (integrated with the crane's PLC or wind alarm system).
Robust Construction:
Environment: Designed for industrial environments, typically operating in temperatures from -20°C to +40°C.
Durability: The tank and components are treated to resist corrosion, making it suitable for outdoor use (e.g., ports or steel mills).
🏭 Typical Applications
The YZA10-20 is primarily used to power safety braking and clamping systems:
Rail Clamps: It is the standard power source for Hydraulic Rail Clamps (e.g., YJGQ series) used on gantry cranes.
Storm Brakes: Powers electro-hydraulic wedges or wind brakes.
Industrial Valves: Can be used to drive hydraulic gate valves or dampers.
Port Machinery: Essential for Ship-to-Shore (STS) cranes and Rail-Mounted Gantry (RMG) cranes.
📋 General Technical Specifications
表格
| Parameter | Description |
|---|---|
| Type | Hydraulic Power Unit (HPU) |
| Model Series | YZA Series |
| Model Variant | YZA10-20 |
| Flow Rate | 10 L/min |
| Rated Pressure | 20 MPa (200 bar) |
| Power Supply | AC 380V / 50Hz (3-Phase) |
| Motor Power | Typically 2.2 kW - 4.0 kW (Dependent on pump efficiency) |
| Tank Capacity | Typically 10L - 20L (Estimated based on model) |
| Ambient Temp | -20°C to +40°C |
| Key Function | Powering rail clamps, storm brakes, and hydraulic actuators |
Note: The YZA10-20 is a critical safety component. The "20 MPa" rating indicates it is a high-pressure unit. When installing, ensure the hydraulic hoses and fittings are rated for at least 25 MPa to ensure a safety margin. This unit is often paired with the YJGQ series of rail clamps to secure cranes against typhoons.
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