Machinery Update | Issue 3 | May / June 2022

Page 40


Feature: Dairy

PET bottles are used for milk in Spain Thanks to Sidel’s end-to-end complete aseptic PET line, UHT liquid dairy products (LDPs) from Spanish milk producer COVAP are now also available in PET bottles. Sidel says this new PET bottle opens the door to meet changing market demand and ensures product integrity and safety. COVAP, a Spanish cooperative, is one of the major milk producers in Spain. However, it also produces ready-to-drink dairy products for other Spanish retail brands. Although LDPs are dominated by carton packaging, major supermarket players have decided to also sell them in PET bottles, based on market preference. To meet demand, COVAP partnered with Sidel for the first time on a complete aseptic PET line with the Sidel Aseptic Combi Predis at its heart, after visiting various dairy plants that are using Sidel’s equipment in Spain and Italy. Sidel experts worked closely with COVAP from bottle design to line start-up. The new PET bottles were designed with a sleek shape, providing a similar look and feel to glass bottles. Thanks to the PET barrier properties, the shelf life of milk drinks has been extended by four months. All three bottle formats – 225 ml, 1 litre and 1.5 litre – can be labelled with sleeve or roll-fed labels, depending on the particular brand requirements. T 01707 292820 W

Positive consumer reaction to the PET bottles

VMECA’s Magic Grippers are supplied by Simmatic and are an all-in-one vacuum system

Delivering the magic vacuum Simmatic supplied its Magic Grippers to ensure a robotic egg cutter unit was reliable for clients


hen Sapcote Engineering was experiencing issues with the vacuum system on its new robotic egg cutter, it worked with Simmatic who supplied MC10 Magic Grippers to help solve the problem. The robotic egg cutting machine tumbled eggs into single file and presented them individually to six pairs of spinning vacuum cups on a rotary indexing head. Loading the eggs onto the indexing head required the vacuum cups to come in synchronised onto both ends of the egg. As the egg is indexed onto the next station, it is spun about its axis while a laser guided cutting wheel advances and splits the egg into two halves. The vacuum retains the eggshells while the contents are deposited onto a robotic arm with a series of cups collecting the white and yolk of the egg. The initial problem was with the distribution of the vacuum which meant egg liquid was finding its way into the system. But when Simmatic offered a solution that could generate vacuum

individually for each cup, with low pressure that could easily be distributed using the existing rotary joints and slewing rings, the partnership began. Also, the Magic Gripper was small enough to fit into the space available with individual control. Trials revealed that the low running pressure, air consumption and physical size of the Magic Gripper MC10 lent itself perfectly to the application. The machine’s rotary vacuum circuit was adapted to work with compressed air, and the improvement in vacuum on each egg was tenfold. Filters were also fitted to cope with the applications fine shell dust and liquid nature. Once Sapcote had finalised the design, it placed orders for 12 pieces of MC10A type Magic Grippers per machine and was able to adapt the existing vacuum cup and filter design to the Magic Gripper MC10A body, which reduced the issues with liquid entering the vacuum generators. T 01299 877770 W