As the demands for product quality and compliance increase, so do the requirements for managing the entire product lifecycle. For many the spotlight is only ever on inspection at one point however modern quality standards demand that a container is continuously checked along all areas of a filling line.

The reality is that inspection systems fulfil a multitude of tasks in the modern filling plant. In this two-part post, we’ll look at the different areas of use and the inspection techniques used in each case with a line for processing returnable bottles as an example.

Empty bottle inspection

Empty bottle inspection is probably the most renowned process where the containers are subjected to various inspection procedures. The inspection technique used by the empty bottle inspector consists for the most part of cameras. The different areas of the bottles are generally photographed with CCD cameras and high-frequency and infrared measuring techniques.  The checks that are done at this point include a base, sidewall, finish and residual liquid check.

Residual caustic solution check

Residual caustic solution in a bottle can present a danger to the consumer and therefore an additional residual liquid check is often installed directly before the filler as an extra safety precaution. A high-frequency measuring technique is also used here, a reliable method of identifying even the smallest amount of residual caustic solution in a bottle.

Don’t miss part three of our post where we look at three more uses of inspection systems in the filling plant.

When it comes to beverage bottling Heuft is the world leader in quality inspection. Heuft offer quality inspection equipment that caters to a range of requirements. Through our partnership with Heuft, Plastic & Chemical Trading can provide South Africa with world class solutions.

Resources: Translation from a report published in the “Getränkeindustrie” journal – June 2002 edition