Baumer hhs celebrated a proud anniversary in 2017: Kroha GmbH at its plant in Barleben, near Magdeburg, Germany, launched the operation of the world’s 5,000th ULT-300 cold glue sensor from Baumer hhs, the Krefeld-based manufacturer of industrial gluing and quality assurance systems. Kroha uses the sensor in an FF 52i folding carton gluing machine from KAMA, which was retrofitted with a top gluing nozzle to enhance the machine’s flexibility. In the gluing nozzle, cold glue is applied to folding cartons by a P-500 application head, also from Baumer hhs. Immediately after application, the glue is scanned by the ULT-300 sensor. It checks the position of the glue, but also those areas where no glue should be applied. The ULT-300 detects narrow and wide glue areas, as well as lines and dots on a variety of substrates. With its auto-teach function, the sensor automatically detects the glue pattern.