Limit switch measurement for reheating furnace

It is important to know when a steel bar has reached the back end of the walking beam furnace in order to keep the opening time of the furnace at a minimum. A fast limit switch is installed to give an alarm as soon as a steel bar has reached this position.

Customer benefit

  • Gives an alarm as soon as a steel bar has reached this position
  • Saves energy


  • Point detector - point source arrangement
  • Due to the thick brick walls, the wall thickness is often reduced at the measurement points in order to keep radiation low


Our detectors are available with a very quick reaction time!

The product version SpeedStar is used when very fast occurrences have to be recognized immediately. The SpeedStar feature ensures extremely fast response times in the millisecond range. An example application is the edge detection of steel plates to straighten their cut edges while they are being transported on the roller conveyor, or to position glowing and scorching steel blocks. Furthermore, the detection of over or under-filled liquid containers, e.g. gas tanks while they are being conveyed.


Measurement solutions for the steel industry


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Berthold's Measurement Solution

SENSseries LB 480 LS

Next generation of high-sensitive detectors with innovative safety features - SIL