Product Description:
1. Classification of proximity switches
According to the principle: inductive proximity switch, capacitive proximity switch, Hall proximity switch, photoelectric proximity switch
According to the output signal: positive signal, negative signal
Inductive proximity switches are generally used on pump trucks
2. Principle of proximity switch
The inductive proximity sensor essentially consists of an oscillator, the coil forms the detection surface, and the alternating magnetic field is generated around the coil. When a metal object is in the magnetic field generated by the sensor, the induced current forms an additional magnetic field that prevents the coil from alternating and the oscillation stops. This causes the output driver to act, according to the sensor type, to generate induction.
3 Working principle of the main cylinder
Master cylinder proximity switch: By sensing the signal given by the position of the piston head in the master cylinder to the controller signal to control the electromagnet on the solenoid valve to achieve distribution reversal.
4 Proximity switch faults
a, the big arm can rise can not fall
B. After the boom receives the position, the leg cannot be moved
c, master cylinder stroke
d, electronically controlled commutation can not be reversed
n can not be reve
Product display |
Applicable industries | concrete pump truck accessories, building materials stores, machinery repair plants, manufacturing plants, retail, construction engineering, electronic components |
Specification and Model | Pm An270321.001 |
Conditional | new |
Power supply type | Inductive proximity switch |
origin | China |
Weight | 0.1kg |
Dimensions (L * W * H) | 12*2*2CM |
Warranty for | 6 months |
Unique Selling point | High efficiency High material environmental protection |
Core components | Electronic components |
Product picture
Main oil cylinder proximity switch: By sensing the position of the piston head in the main oil cylinder, it sends a signal to the controller to control the on and off of the electromagnet on the solenoid valve to achieve distribution commutation.


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