Rugged sensors for rail vehicles

Encoders used in rail vehicles need to be unaffected by dirt, oil and grease, rainwater, condensation, high and / or fluctuating temperatures, and shock and vibration, particularly in the unsprung parts of bogies. Lenord+Bauer sensors can take all such punishment without damage.

They have proved to be reliant in thousands of railway projects during the last decades. They are based on the magnetic and inductive sensing principles using hall-effect magneto-resistance and Eddy current sensors with metal targets and employ the very latest sensor technology, circuitry and construction techniques.

These sensors offer a high level of electrical and mechanical robustness, guaranteeing reliable function and long-term dependability.

Custom sensors, cables and hardware

For special requirements, Lenord+Bauer can design and manufacture custom sensors, and associated cable and hardware types. Almost any installation requirement can be accommodated.

Rotary speed sensors

Rail rotary speed sensors for sensing toothed wheel targets are available in a wide range of types. Features include:

  • One to three channels
  • Measure frequencies in the range from 0Hz to 25kHz
  • For toothed wheel targets with modules from 1 to 3.5 (DP 25.4 to 7.26)
  • Air-gap up to 3mm
  • Square-wave output signal pattern (voltage, standstill voltage or current)
  • Protection class IP 68, fully potted
  • PT100 / PT1000 temperature sensors can be assembled to a shared connector


1 or 2 channel speed sensor GEL 2471

Sensor for electrically conductive measuring scales Up to 4 mm air gap Maintenance- and wear-free operation due to non-contact measurement of rotation Weight-saving construction due to light-weight target wheels made of e.g. aluminium Reinforced walls …

Temperature sensor

Platinum resistance thermometer Pt100 / Pt1000 Measuring tube lengths from 30 mm to 140 mm Connection with 2-, 3- or 4-wire technology Fire behaviour according to DIN 5510 and NF F16-101 Custom configuration

2 channel speed sensors

Sensor with HTL-/TTL-output signals Maintenance and wear-free operation due to contactless measurement of rotational movements Appropriate for tooth wheels, slotted discs and sprockets

1 or 2 channel speed sensor

Sensor with voltage output Low lifecycle costs for the vehicle operator due to high reliability Space-saving sensor in a compact design With lateral or straight cable outlet


Lenord, Bauer & Co. GmbH
Dohlenstrasse 32 46145 Oberhausen
  • Phone: +49 208 9963-0