New solution for empty glass container inspection during the filling process: greater productivity at no extra cost

Seidenader is presenting at the Interpack a completely new solution for the inspection of glass containers before filling: the newly developed camera system for empty glass bottom inspection is based on a new type of empty glass lens in combination with recipe-controlled camera lens positioning. This enables a much better image quality to be achieved. At the same time it reduces distortion at the edges of the camera image. It is thus possible to inspect empty glass vials for damage and contamination using a single camera that has been optimized for every format size and shape.

Many pharmaceuticals are so cost-intensive in production, that any quality deficiency has a negative impact on productivity. In such cases, it is particularly important to ensure that fault-free products do not have to be filtered out during final inspection simply because the container is defective. This calls for empty glass inspection prior to filling.

Empty glass container inspection typically concentrates on defects in the side wall or sealing surfaces, as well as on particle checks on the bottom of the container. The latter involves a technically very complex inspection, as process-safe results can only be achieved by means of imaging through the mouth area. But it is often the case that the bottom diameter is larger than the mouth opening. That's when a special optical system with a crossed beam path is used. However, this naturally limits the size and shape of the vials to be inspected to a particular format. Inspecting different formats thus means compromising on inspection quality. If a particular dimension is exceeded, additional camera stations would have to be installed. For space reasons, such combinations are usually out of the question.

The new Seidenader solution for empty glass bottom inspection now offers an excellent alternative based on a new type of empty glass lens in combination with recipe-controlled camera lens positioning. The compact design is intended for integration in filling lines in clean rooms or under an isolator. This is how it ensures that the precious products are only filled in perfect quality vials. Output is automatically increased as a result, so that the investment practically pays for itself.