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End Position Sensor In Hydraulic Systems And Pistons


Finally there is a reliable way to precisely detect the end limit positions of pistons and cylinders, particularly when that detection is critical to the operation and/or can result in a disaster if the detection fails.  Mechanical limit switches have been used successfully in the past, but can fail prematurely or may have limited life cycles.  Dirty environments can exacerbate the problem.  Now designers have turned to the Reed Sensor which uses hermetically sealed reed switches, which are ideal for critical requirements where reliability is essential.

Full Application Write Up
Detect End Limit Position in Piston & Hydraulic Systems - Reed Sensor



  • Contacts dynamically tested
  • Cylindrical panel mount and screw fastening mounting
  • Large sensing distances possible
  • Magnet and reed sensor are isolated and have no physical contact by typically having the magnet mounted to the piston movement and the reed sensor mounted and positioned to detect the end limit position(s)
  • Millions of reliable operations
  • The permanent magnet is not affected by its environment
  • The reed switch never comes in contact with the actual movement of the piston
  • The reed switch used in the reed sensor is hermetically sealed and is therefore not sensitive to dirty environments


MK03 Reed Sensor

M03 magnet not included

MK14Dia40.157 MK14 Reed Sensor
MK18Dia50.197 MK18 Reed Sensor
MK20/1Dia2.720.107 MK20/1 Reed Sensor

Browse Our Entire List Of Applications Or Search Our Application PDF Library For More Details.


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