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Our radar sensor monitors the exact position of the steel or metal strip.

With our reliable radar solution, you will benefit from a precise strip guiding of the steel or aluminium strip in your coating line. Our radar sensors work error-free even in the most difficult environments of the metal industry with heat, dust, smoke, steam, vibrations, noise, adverse lighting conditions or rough surfaces. Thanks to our innovative radar technology, you will successfully prevent collision-related damages to the steel strip or the coating line and thus eliminate unplanned downtime, high maintenance and repair costs and loss of production.

Measuring principle: position control of the steel strip with radar
Height control of the steel strip in the coating line. ©Mr.1 - Shutterstock

Steel strip guiding with radar

For a zero-defect coating process in the coating line, it is important to continuously determine and correct the precise position of the steel strip. The OndoSense radar solution was specially developed for this application: It enables an error-free steel strip guiding of the steel or aluminum strip. The radar system is suitable for all surface textures, colors and metals. Both freshly painted strips and high-gloss products are reliably detected. The sensor system thus enables a reliable strip guiding control at all times, ensuring an efficient functioning of the color coating line.

Our sensor system is based on high-precision radar technology that is insensitive to heat, dust, smoke, steam, vibration, noise, difficult lighting conditions or rough surfaces. OndoSense radar sensors are therefore able to supply your strip guide system with reliable measurement values in every situation.

Exact steel strip position: up to 1 mm

For safety reasons, the distance measurement to the steel strip is carried out redundantly with two sensors on both sides of the strip. Our sensor solution determines the position of the steel or aluminum strip for correct height adjustment with an accuracy of up to 1 mm. Thanks to the high measurement rate, the radar sensors will detect anomalies at an early stage: This means that the strip guide system can immediately intervene to correct the coating process.

With the OndoSense sensor solution for strip guiding, measurement errors that lead to faulty steel strip settings are once and for all a thing of the past. Thanks to our extremely reliable radar technology, you will successfully ward off collision-related damages to the metal strip or the coating line. You can finally say goodbye to unplanned downtime, high maintenance expenditures, costly production failures and annoying repair costs.

Height control of the steel strip in the coating line. ©jovannig - Adobe Stock

Your added value with radar


More productivity with radar.

  • Our radar system enables reliable measurement values - regardless of color, surface or metal type.
  • You will benefit from a safer, more productive coating line and prevent scrap.


Low integration effort.

  • Our radar sensor does not need active cooling – a heat-proof PTFE window is sufficient to protect it.
  • The OndoSense radar is insensitive to dust, smoke, steam, noise or poor lighting conditions.


Secure, reliable strip guiding.

  • Our radar sensors measure reliably even on rough and smooth surfaces or with heat and vibrations.
  • This ensures precise steel strip guiding and prevents collisions as well as expensive downtime.

Application data steel strip guiding

Steel strip guiding

Measurement accuracy

up to 1 mm

Measurement range

0.1 to 8 m

Measurement rate

100 Hz

Possible environmental conditions

Water vapour, smoke, dust, dirt, vibration, heat & cold, reflections, difficult lighting conditions

Outputs & interfaces

Analog current loop (4–20 mA), digital switching outputs (3x push-pull), RS485 communication interface, Profinet (via Gateway)

Measured product

Steel strip, aluminium strip and other metal strips (both freshly painted strips and high-gloss products). The measurement result is independent of the surface quality, color, alloy or material thickness of the metal strip.

Suitable radar sensors

OndoSense apex

Radar sensor for distance measurements with the highest precision and speed as well as a narrow opening angle for exact measurement results.

Customers in the metal & steel industry

Your inquiry on our radar sensor solutions.

Please contact us now for advice & quotes.

Do you have questions on our radar sensor solutions and need to discuss your application case with our radar experts? Would you like to order or test our radar sensors for distance measurement or collision avoidance? The OndoSense team will provide you with answers, advise you on the use of radar sensors in your industrial environment and send you a quote.