Automation to Meet Increasingly High Customer Requirements

Sesotec cooperates with Leuze on CAT-based foreign object detection sensors for the food industry.

  • UNICON metal detector system from Sesotec, consisting of conveyor belt, detector coil with control unit and ejector unit.
    UNICON metal detector system from Sesotec, consisting of conveyor belt, detector coil with control unit and ejector unit.

In addition to the demands on productivity, consumers and retailers have increasingly higher expectations that weigh on food manufacturers and processors. Additional certifications from suppliers, longer shelf lives, constant availability, transparency on product origin, ingredients, traceability as well as quality demands from being free of any contaminants or foreign objects to specialized demand for vegetarian or gluten-free products are only a sample of these new expectations.

Intelligent automation technologies and services are therefore needed to overcome the triple challenge of meeting the high standards with regard to food safety, while complying with guidelines and guaranteeing the most efficient use of resources in a complex, globally networked food industry.

Sosetec cooperates with Leuze on sensor technology

"Manufacturers need precise technologies to comply with the legal standards regarding food safety," explains Hermann Sammer, Director of R&D at Sesotec, manufacturer of product inspection and material sorting systems in Schönberg, Bavaria. For reliable detection as well as proper labeling or assignment, is currently in test operation at Sesotec the DRT 25C switching sensor from Leuze with a completely new operating principle based on Contrast Adaptive Technology (CAT).

"Our company philosophy is very closely aligned with that of Leuze.(…) We are (…) focused on offering our customers specific, complete solutions that are tailored to their respective application and requirements. explains Sammer. Brigitte Rothkopf, Director Corporate Communication at Sesotec. 

The process behind the DRT 25C sensor

"The DRT 25C is based on a completely new technology: the Contrast Adaptive Teach Technology (CAT)," explains Eberle. The basic idea is simple: The object can change at any time. The DRT 25C therefore works with an object's environment as a constant reference surface instead of with the object itself. In packaging systems, this is the conveyor belt. Every object that is transported on the conveyor belt now generates a signal. If this deviates from the zero state, the DRT 25C reliably detects the object as a "deviation from the reference."