When the DPK-20-35 corrosion-resistant deviation switch occurs during the operation of the conveyor belt, the conveyor belt touches the vertical roller of the switch and causes the vertical roller to deflect. When the deviation angle of the vertical roller reaches level 1 switch angle, the switch sends an alarm signal. When the conveyor belt deviates seriously and reaches the second level switch angle, the switch sends a stop signal to automatically stop the conveyor belt due to deviation fault. When the deviation fault is eliminated and the tape machine is running normally, the switch vertical roller can automatically reset and return to the initial state< Applicable scope: Two level deviation switch is used for conventional belt conveyors: underground, cableway support belt conveyors: ship loading and unloading systems; Stacking/reclaiming conveyor; Tilt and shuttle conveyors; Crane, excavator, boom limit: skirt feeder/conveyor: heavy-duty limit switch detects the deviation of the tape, which is a protective device for automatic alarm and shutdown of the tape machine control. Widely used in various belt conveyor equipment in fields such as metallurgy, coal, cement and building materials, mining, electricity, ports, metallurgy, chemical industry, etc. The DPK-20-35 corrosion-resistant deviation switch is used to detect faults such as twisting, overload, and deviation from the centerline of the conveyor belt during operation. Effectively prevent accidents such as material scattering, overload damage to machinery, and personal injury caused by conveyor belt deviation. When the conveyor belt equipment is running, there may be overload, center of gravity deviation, or conveyor belt distortion, causing the conveyor belt to deviate from the normal track. The conveyor belt squeezes the rotating arm, drives the precision cam to trigger the micro switch to emit an alarm signal, and the rotating arm swings 20 degrees relative to the vertical position, outputting an alarm signal; Swing 35B and output shutdown signal< br/>