Proximity sensors are used for binary feedback of the piston position of pneumatic drives. They are sensors that detect the magnetic field of the piston magnet via a magnetic field or reed contact. They are mounted in the required switching position in the cylinder’s T-slot or C-slot and output a standardised 24 V switching signal when the magnetic field of the piston is detected. The range of switches covers all standard applications and also provides solutions for specific industry segments. The strength of the piston’s magnetic field and the sensor slot geometry are not standardised in the market. Any cylinder manufacturer can freely select both.
Festo develops both cylinders and cylinder sensors and can therefore safely and reliably design the proximity switches for its own drives.