High‑Performance Hydraulic PLC Control Experimental System Hydraulic Pneumatic PLC Training Device for Vocational College Mechatronics Teaching Experiment

Main Technical Parameters

1. Power Supply: AC 220V 50Hz (mains)
2. DC Power Supply: Input: AC 220V, Output: DC 24V/2A
3. Relay Control
4. PLC: Mitsubishi FX1S-20MR main unit with 12-point digital inputs and 8-point digital outputs
5. Hydraulic Test Pump Motor Power: 450W, equipped with a dedicated voltage-regulated DC motor speed regulator

   Speed Range: 0-1500 rpm

6. Tachometer: Displays the motor speed during the test
7. Noise level during operation: ≤58 dB at a distance of 1.5 m from the hydraulic test bench.
8. The required hydraulic pressure for the experimental oil circuit is 0.3-0.8 MPa (maximum oil pump pressure: Pmax = 1.5 MPa).
9. Solenoid directional control valve: DC 24V, suction force 30N.
10. Dimensions of the test bench: 1500mm * 700mm * 1700mm.

Main Features

1. The hydraulic test bench primarily consists of a test table, test bench, hydraulic components, and electrical control devices.
2. The test table and bench are constructed of 1mm-thick, double-layered, matte, fine-grained plastic-sprayed iron. The test bench drawers store hydraulic components.
3. Equipped with all common hydraulic components: Each hydraulic component is equipped with flexible pins for easy and convenient insertion into the panel (made of a custom aluminum alloy). Quick-lock connectors are used for oil circuit connections, ensuring easy connection and disconnection without leaks.
4. All experimental components are made of transparent organic materials, making it easy to understand the structure, performance, and applications of dozens of common hydraulic components. Mastering the working principles of dozens of basic circuits makes experimental assembly quick and easy.

Reversing Circuits for Basic Hydraulic Experiments

1. Reversing circuit using a manual reversing valve.
2. Locking circuit using a center-position function reversing valve.
3. Locking circuit using a hydraulically controlled horizontal valve.
4. Pressure setting circuit.
5. Secondary pressure control circuit.
6. Pressure reducing circuit using a pressure reducing valve.
7. Pressure boosting circuit using a booster cylinder.
8. Unloading circuit using an H-type reversing valve.
9. Meter-in speed control circuit.
10. Meter-out speed control circuit.
11. Reversing speed control circuit for a speed control gear pump.
12. Composite speed control circuit consisting of a speed control gear pump and a speed control valve.
13. Speed switching circuit with a short-circuited flow valve.
14. Secondary feed circuit using speed control valves in series.
15. Secondary feed circuit using speed control valves in parallel.
16. Sequential action circuit using sequence valves.
17. Sequential action circuit using pressure relays.
18. Sequential action circuit controlled by travel switches.
19. Sequential action circuit using travel reversing valves.
20. Synchronous circuit for series hydraulic cylinders.
21. Reversing circuit controlled by a pilot-operated relief valve.
22. Liquid-filled rapid motion circuit.