Cardboard beverage bottle carrier unfolding
![Suction fixture carton fold test, fully open position [PDV8017] Suction fixture carton fold test, fully open position [PDV8017]](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2020-12/989-cardboard-beverage-tension-test-system.jpg.webp?itok=v-xgxcIO)

Customised engineering example
A manufacturer of fully-enclosed cartons wanted to quality test the fold-out force for a variety of their designs, used mainly to package drinks bottles and cans. Since the cartons are supplied flat, the carton faces needed to be pulled apart evenly.
Mecmesin designed a base plate with locating flanges for each carton-design to be inserted when tested. The underside of the flattened pack was held in place by vacuum pumped suction, and the upper side was pulled up by a cluster of suction cups.
Test samples could be fitted quickly and the vacuum engaged to apply suction on both surfaces. In this way, the folding strength of the fully-enclosed cartons could be accurately measured as the two surfaces were pulled apart.
![Suction fixture carton fold test, fully open position [PDV8017] Suction fixture carton fold test, fully open position [PDV8017]](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2020-12/989-cardboard-beverage-tension-test-system.jpg.webp?itok=v-xgxcIO)

