The PreWatcher III in its updated version including numerous improvements in hardware and software

THE PreWatcher III by the German company INTRAVIS is an inspection system especially designed for inline inspection of preforms. It inspects the quality characteristics of up to 72,000 preforms per hour.

At this year’s K-Fair in Dusseldorf, a new version of the PreWatcher III will be showcased for the first time. Besides refined cavity number reading, one major improvement is the two way conveyor, which allows for better feeding of the centrifugal unit and optimizes the system for inline use. Another improvement is a new 16:9 monitor with a 21.5-inch display, which makes it easier to observe current and new inspection modules – as in the future, even more preform characteristics can be inspected by the system.

The system can be installed behind an injection moulding machine and has a footprint of eight square meters. Both inline and offline inspection are possible, the latter in combination with a bunker, tipper and octabin filler. An orientation mechanism operating with centrifugal force is integrated directly into the system. Six cameras are responsible for the thread and body inspection while two cameras inspect the top sealing surface and the gate area.

The PreWatcher III also offers switchable lighting, with the standard lighting being white for transparent or translucent preforms of any colour. For virtually opaque coloring, as is often used with beer preforms, infrared light is an additional possibility. With the PreWatcher III being the only inspection system on the market to do cavity number reading, further lighting has been added to improve this function.

www.intravis.com