Swiss food manufacturer Bischofszell Nahrungsmittel (Bina) has chosen a shrink wrapping system from Sidel to package its square and round bottles of organic juices and iced teas.
Bina needed to process its new squared bottles while still running round bottles on the same line. All of that had to occur in a compact area of the plant at up to 50 cycles per minute at the shrink wrapping stage.
“We wanted to package our new juice and iced tea bottles in shrink-wrap film while also having the option of using a tray plus film for some batches; all while keeping the footprint of the solution to a minimum,” said Yasin Kapusuzoglu, project manager technology at Bina.
According to the company, this was challenging because the orientation of squared containers had to be controlled within the whole process to get a pack with correctly facing bottles. As a result, a traditional mass flow infeed system was not possible.
Meanwhile, flexibility was a key requirement for Bina, given the large range of bottle formats – from 250 ml to 2l – that it processes on the line. “For us, changeovers’ speed and ease were important features of the overwrapping solution provided,” Kapusuzoglu added.
Space was also a key issue. Bina was impressed by Sidel’s compact unifilar 90° infeed system where the flow is managed on one lane – directly from the sleeving machine with no lane dividing system needed. Instead, the flow of juice and iced tea bottles goes straight to the shrink-wrapper.
“First, a selecting device with lateral brackets delivers the right number of products per row while ensuring the necessary distance between each row,” explained Valérie Cattenoz, overwrapping product manager at Sidel. “These rows are then transferred at a 90° angle by an ‘on the fly’ pusher, which redirects the flow of three to five bottles in accordance with the shrink-wrapper’s flow direction.”
The installed system is technically capable of running at a maximum speed of 150 cycles per minute, depending on the exact product size and shape. “The solution is complemented by a tray module, delivering tray plus film packs,” Cattenoz said.
“We appreciate the simple, streamlined unifilar infeed system where all changeover tasks are carried out automatically in three minutes, delivering a maximum changeover time of 15 minutes for the entire shrink-wrapper – worst case scenario when moving from film only to tray plus film or vice versa,” commented Kapusuzoglu.
Meanwhile, Sidel designed a removable rolling tray magazine, which can be extracted from the shrink-wrapper when running a format without tray support. The circulation around the line is then much easier for the consumables and the operators.
According to Sidel, this is a plug and play module with a central cabling connector. In a traditional solution, the tray magazine is typically located underneath the product infeed. Thanks to the 90° infeed configuration, the upper part of the magazine is now open and accessible and therefore allows an easy and ergonomic manual refilling of the trays in the magazine.