>> The WT 2 is one of the world’s smallest series of photoelectric switches. A laser-like light source and optics have, for the first time, been accommodated in a sub-miniature housing made using extrusion technology. Users do not have to compromise: the WT 2 is extremely robust and provides excellent performance. This is ensured by, among other things, metal-reinforced drilled mounting holes and an enclosure rating of IP67. The laser-like light source generates an extremely precise light spot that allows reliable detection of parts.

Without the WT 2: minimum mounting space versus maximum range

Via clothes pressing machines and shirt presses the Kannegiesser company has become a complete supplier and technical partner to the laundry sector since its founding in 1948. Within the Group, Kannegiesser Kleindienst in Augsburg is responsible for the development and production of appropriate conveyor systems, including clothing output systems for working clothes. It is vital that clothes hangers are reliably detected in these machines.

Mounting space or range? This dilemma remained impossible to solve for a long time. Smaller, non-optical sensors did not need much space but had insufficient range and switching reliability. Opto-sensors available up to now have required too much mounting space for the required range. A visit to a trade fair turned up the solution: the WT 2.

With the WT 2: minimum mounting space and maximum range

The narrow design and range of 50 mm were exactly what was needed. Connected directly to the PLC of the output system via a coupling module, the sensor reliably detects every clothes hanger. The high level of immunity to ambient light prevents mutual interference between devices that have been mounted parallel to one another – a further advantage of the WT 2.

Thanks to the W 2 sub-miniature series, lack of space is no longer a problem when it comes to integrating photoelectric switches in the optimum position on a machine.