Haydon Kerk Motion Solutions (www.haydonkerk.com), a leading manufacturer of precision linear motion products, has released the latest 25000 Series one inch captive linear actuators, which integrate end-of-stroke proximity sensors. The sensors use the technology of miniature hall effect in an IC package placed directly on the actuator. The non-contact operation of the switch provides the unlimited on-off life cycle in the sensors’ hall effect technology. The company’s can stack linear actuator with proximity sensors is suitable for limited space applications.

With the use of a rare earth magnet fitted directly at the internal screw’s end, the sensor achieves a highly repeatable on/off signal. The in and out movement of the screw allows the magnet to move forward and away from the sensor face, enabling the device to switch states. Purposely designed to function in a digital switch mode, the proximity sensor utilizes an open-collector output via a NPN transistor switch incorporated in the sensor. The proximity switch is a device comprised of three wires, requiring a minimum voltage of 3.8 VDC to a maximum of 24 VDC with a current consumption of 10mA max.

The company’s latest 25000 Series is part of the G4 portfolio of high-output can stack linear actuators whose performance are “second to none” when compared to actuators of its kind in the market. Improvements include high energy neodymium magnets, custom engineered polymers, optimized stator tooth geometry, and larger ball bearings for increased rotor support and axial loading.