RFID and Autoclaves

RFID systems featuring rugged data carriers (tags) enable users in the food and animal feed industry to make challenging processes more efficient


With its RFID system, BL ident, Turck offers a versatile identification solution for use even in tough applications, such as autoclaves. Rugged, re-writable data carriers facilitate more efficient processing steps and consistent tracking systems – significantly increasing machine uptimes and thus opening up new streamlining potentials.

  • Rugged data carriers stay during the autoclave process

High ambient temperatures of up 140 °C, humidity and ambient pressures are not exactly favorable environmental conditions for electronic components. In fact, autoclaves are one of the most challenging applications in the food and animal feed industry for a good reason: autoclaves cook food or feed very efficiently and preserve the packed consumables at the same time. Only a consistent track-and-trace system that provides information about each and every processing step enables users to fully integrate this challenging application into their production chain. And only a rugged and versatile identification solution allows such a consistent track-and-trace system.

Advantage: RFID

One main advantage of radio frequency identification (RFID): The transmission of information via electromagnetic radio waves is generally less susceptible to environmental influences. While printed labels may be affected by the harsh conditions in autoclaves, special RFID tags and rugged, mobile reading devices enable radio-based identification to be used even under these tough conditions.


Specially suited to the EU regulation 178/2002 – specifying that “the traceability of food, feed, food-producing animals and all substances incorporated into foodstuffs must be established at all stages of production, processing and distribution [and] that business operators are required to apply appropriate systems and procedures” – Turck is offering corresponding components for its RFID system, BL ident.

Besides glass-coated data carriers (TW-R4-22-B128) for ambient temperatures of up to 140 °C, BL ident is comprised of rugged write-read heads (even for use in washdown areas), food-safe connectivity products and corresponding fieldbus and interface solutions for use in control cabinets (BL20) or directly in the field (BL67). In this way, the comprehensive identification system enables users in the food and feed industry to identify their intermediates and end products at any time – without regard to the environmental conditions.

Complete package

BL ident does not only help users make individual processing steps more efficient, it also facilitates consistent track-and-trace concepts – reducing downtime and total costs. Attached to containers or trolleys, the IP68-rated data carriers may remain with the objects during the entire production process; relevant data may be retained and retrieved automatically before each processing step, after each step or at the end of the production chain, so that the user can access a comprehensive processing protocol that verifies the complete production process. In this way, the fully automated information transmission between tags, read/write heads and the higher level control system helps make the entire production chain safe and reliable.

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