Sensor technologies for food & beverage packaging

Hygiene is a key factor in the food and beverage industry. Production and packaging systems must not only work efficiently and precisely, but also comply with the strictest cleaning and safety standards. Sensors that are robust, durable and resistant to intensive cleaning cycles are therefore particularly in demand in the primary and secondary packaging process.

The wenglor sensor solutions in stainless steel housing with a degree of protection of IP69K are specially designed for these conditions. Equipped with Ecolab certification, they resist aggressive cleaning agents and withstand regular high-pressure cleaning, ensuring continuous process reliability in hygiene-critical areas.

The image shows three views of a blue conveyor belt, at the end of which a photoelectronic sensor is mounted in a miniature stainless steel housing.
Stainless steel sensors with IP69K protection ensure reliable use in washdown areas.

Typical applications in food packaging

Check trays before and after filling:

The precise detection and inspection of trays is an important step in packaging lines for fresh products. Photoelectronic sensors made of stainless steel in miniature housings, which work with red laser light, enable reliable detection both before filling and after sealing. Their compact format facilitates integration even in confined machine areas, while the robust design ensures a long service life.

The picture shows a contrast sensor from wenglor looking at a transparent film to detect reference marks.
Contrast sensors reliably detect print marks of different colors against any background.

Monitoring the film seal

Precise detection of the reference mark on the film is crucial for the exact sealing of trays with films. Here, wenglor offers a contrast sensor solution with white light that reliably detects this mark even on transparent films. Thanks to the integrated teach-in, the sensor can be flexibly adapted to different materials and cut edges, enabling accurate and repeatable film cutting.

Advantages for the food and beverage industry

  • Highest hygiene standards thanks to IP69K protection and Ecolab certification (stainless steel versions)
  • Resistant to aggressive cleaning agents and high-pressure cleaning
  • Precise detection of trays and foil marks, even on transparent materials
  • Reliable integration into different packaging lines and production environments

Conclusion

With stainless steel sensors for tray inspection and contrast sensors for film mark detection, wenglor offers customized solutions for the special requirements of the food & beverage packaging industry. They ensure hygienic safety, precise detection and reliable processes – and thus make an important contribution to the efficiency and quality assurance of modern packaging lines.

Author

Picture of Max Mustermann

Max Mustermann

Job title