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Wheel sensors are inductively acting sensors which detect the metal mass of the wheel flange and generate electrical impulses therefrom. Depending on the application a distinction is made between single wheel sensors for rolling stock detection and switching tasks as well as double wheel sensors for direction detection, axle counting and speed measurement. Pintsch Tiefenbach's know-how in the production of wheel sensors is based on more than 30 years of experience in which these products have been continuously developed and improved. The customer receives a highly operationally proven product which in many cases, but mainly as axle counters, meets best the high requirements of the users. In connection with the wheel sensors, Pintsch Tiefenbach provides its customers – depending on requirements – with customized components for the evaluation and further processing of the sensor signals and supports users in the configuration and assembly of the components.


  • Single wheel sensor N59-1R-200-45 (NAMUR) • Train position detection and axle counting for applications where direction detection is not required. • Typically used in classification/hump yard applications and other presence detection applications for speeds up to Vmax 37 mph.
  • Single wheel sensor N59-116vI-200-45 (with integrated switching amplifier) • For applications where an output signal is needed directly from the wheel sensor
  • Double wheel sensor 2N59-1R-200-45 (NAMUR) • For train position detection with direction detection and axle counting for freight and shunting traffic for speeds up to Vmax 37 mph
  • Double wheel sensor 2N59-1R-200-40 • For train position detection with direction detection and axle counting for speeds up to Vmax 220 mph


  • Contact-free operation by the wheel flange
  • High life expectancy
  • Robust construction and resistant to weather conditions
  • Small physical dimensions
  • Remains uninfluenced by rail currents, harmonics, radio interference, etc.
  • No weakening of the rail due to installing the wheel sensor

Double wheel sensors are employed for example in:

  • Axle counting systems
  • Block signaling applications
  • Train positioning
  • Hotbox-detection
  • AEI reader applications
  • Speed measurement systems
  • Point zone protection systems
  • Approach and island overlay circuits
  • Grade crossing protection systems