SHUT. TIGHT. SIMPLE.

PET bottles are made by blowing heated plastic in a mold and stretching it. This blow molding takes place in molds that consist of two halves. For the stretch blow process to work the two halves must be tightly sealed together. In the past a separate locking system was used that takes up space, needs regular maintenance and costs process time. That's why KHS invented the "CLever-Loc" system. With "CLever-Loc" only one half of the mold is movable, the other is static. To close the mold the movable half is pressed tight against the fixed half – using the toggle lever principle. Two interconnected rods are stretched, pressing the movable half against the immovable section. And if that sounds a little too complicated, just reach for a beer with a traditional swing-top. Then you'll see how it works. Cheers.