The Rotary Resistance Material Level Switch, the Lengthening Rod Object Detector, the Industrial Limit Sensor, the Thread Type. : SJ resistance-rotating material level switch uses a micro motor as a driving device. The drive shaft is connected with the clutch. When the material is not in contact with the material, the motor runs normally. When the blade contacts the material, the motor stops rotating, and the detection device outputs a contact signal. Cut off the power to stop rotation. When the material drops, the resistance of the blade disappears, and the detection device relies on the torsion spring to return to the original state. The torque can be adjusted for different specific gravity materials. Features: 1. The imported motor has reliable performance and can run continuously for a long time; 2. Unique oil seal design can prevent dust from penetrating along the shaft; 3. The torque is stable and reliable, and the torque can be adjusted; 4. When the blade is under heavy load, the motor rotating mechanism will automatically slip to protect it from damage; 5. Splicing specifications, blades, and lengths can all be customized. Power parameters: 1. Power supply: 110VAC, 220VAC, 12VAC, 24VDC 2. Contact capacity: 5A/250VAC SPDT 3. Power: 5W 4. Withstand voltage: 1500VAC1min 5. Blade speed: 1rpm 6. Protection level: IP65 7. Wire inlet specification: 1/2PF 8. Applicable minimum specific gravity: 0.3g/ cm3 9. Temperature: -2080 (high temperature type resistant to 350)