1. PLC & Hydraulic System Protection
- Usually controlled by a PLC and powered by a hydraulic system.
- PLC monitors operating status; hydraulic system responds to abnormal load through pressure control and sequence logic.
- Helps prevent motor overload, hydraulic shock, and uncontrolled movement during continuous scrap processing.
2. Pressure Relief & Load Monitoring
- Typically uses pressure relief valves, pressure sensors, or load monitoring to avoid excessive force in the shear and compression cylinders.
- When abnormal pressure is detected, the system can stop, reverse, or pause the cycle.
- Protects main structure, blades, cylinders, and hydraulic components from damage caused by oversized or uncuttable scrap.
3. Electrical & Operator Safety Devices
- Common safety devices: emergency stop buttons, safety interlocks, electrical overload protection, and fault alarms.
- Help operators stop the machine quickly and reduce risk during feeding, maintenance, and abnormal operation.
- For export orders, CE‑related safety documentation should be confirmed with the manufacturer.
4. Confirm Overload Configuration Before Ordering
- Whether overload protection is included depends on the specific model and configuration.
- Request hydraulic pressure setting, overload protection method, PLC fault list, emergency stop layout, safety guard design, and CE documentation.
- Ensures the machine meets local safety standards and supports stable after‑sales service.
