Key factors for selecting proximity switches - Professional manufacturer of sensors

Proximity switches operate without direct contact, detecting the presence or position changes of target objects. As a versatile sensing solution,they sense physical properties like metals, non-metals, or magnetic fields to generate signals. Thanks to their robust performance,industries widely apply this technology in automated production lines, mechanical equipment, limit protection, and liquid level detection. Common types include inductive and capacitive proximity switches, offering fast response, high reliability, sensitivity, and long service life.

When selecting proximity switches, ensure to confirm the following key parameters based on specific application requirements.

1.Detection object

Determine the target object to be detected:

Metal：Applicable to inductive proximity switches
Non-metallic ：Applicable to capacitive proximity switches
Magnetic material ：Applicable to Hall proximity switches
Other objects ：such as transparent objects, consider photoelectric or ultrasonic proximity switches

2.Detection distance

To ensure optimal performance,Confirm the maximum detection distance between the target object and the sensor:

Detection distance：Our products offer a detection distance of 1 to 30mm

3.Sensor external dimensions

Select the appropriate external dimensions based on the installation space of the equipment:

Cylindrical (M8, M12, M18, M30, etc.)
Square or flat type
Special shape (according to the design requirements of the equipment)

Inductive proximity switches detect metal objects through electromagnetic fields, enabling contactless operation for positioning, counting, and safety in industrial automation. Compact and resistant to interference, they perform reliably in high-temperature, humid, and challenging environments, offering high precision and long service life, making them ideal for enhancing production efficiency.

4.Installation method

Flush installation (embedded type) : The sensor can be completely embedded in the metal, with no detection blind spots.

Non-flush installation (non-embedded type) : A certain gap needs to be reserved in front of the sensor, and the detection distance is longer.

5.Output mode

Confirm the output type:

PNP/NPN NO/NC

6.Working power supply

Determine the power supply voltage range of the equipment:

Common range: DC 10-30V or AC 110-220V

Some products support wide voltage input (such as AC/DC universal)

7.Environmental conditions

Select the appropriate product based on the usage environment:

Temperature range：The temperature at which the sensor needs to operate, high or low
Protection grade：IP rating confirm waterproof, dustproof requirements (such as IP67 or IP68)
Corrosion resistance performance：Sensor application scenarios, such as factories, etc

8.Detection frequency

Confirm the response frequency and other requirements of the sensor.

9.Application environment

Describe in detail the practical application of the sensor in order to recommend the appropriate model and technical parameters.

By confirming the above parameters, you can select the most suitable proximity switch to ensure that it meets the actual needs and operates stably. If you are interested in our products or have any questions about the selection parameters, please feel free to contact us at any time!

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