End-of-Stroke Proximity Sensors Fit 25000 Actuator

Haydon Kerk Motion Solutions is offering an integrated end-of-stroke proximity sensor for the 1in 25000 Series captive linear actuators, which are suited for limited-space applications. The proximity sensor utilises miniature hall-effect technology in an IC package mounted directly on the actuator. The hall-effect technology has a virtually unlimited on-off cycle life due to the non-contact operation of the switch. A highly repeatable on/off signal is accomplished using a rare earth magnet embedded directly on the end of the internal screw.

As the screw moves in and out of the actuator, the magnet moves toward and away from the sensor face, causing the device to switch states. The proximity sensor is designed to operate in a digital switch mode using an open-collector output through an integrated NPN transistor switch. The proximity switch is a three-wire device and requires a supply voltage of 3.8V DC minimum to 24V DC maximum with a current consumption of 10mA max.

The Haydon 25000 Series is part of the G4 line of high-output can-stack linear actuators. Improvements include optimised stator-tooth geometry, high-energy neodymium magnets, custom-engineered polymers and larger ball bearings for greater rotor support and axial loading.

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