Metal Capping ROPP –  Metal cap locker or ROPP capping machines are used to lock metal caps on glass bottles.ROPP is short for Roll-on Pilfer Proof, Roll-on Pilfer Proof is a type of screw cap where the thread is formed by pressure against the container. Roll-on-pilfer-proof (ROPP) caps are made from aluminium.

ROPP CAPPER?

The shell is threaded and placed on the bottle neck before being pressed down by threading wheels to conform to the shape of the bottle. In many respects a ROPP capper resembles a chuck capper although since it is not torquing a cap there is no clutch mechanism required. ROPP capping machines are available as a single head to multiple head high speed rotary systems. The big advantage of a ROPP capper machine is that it is sealing the product at the same time it is providing tamper evident security. The big disadvantage is that it is expensive to run more than one size cap. The neck and threads of the bottle must also be hard enough to withstand the pressure required to form threads such as glass or hard plastic.

Roll-on pilfer proof caps or ROPP caps are in very high demand in the beverage and food industry. Widely used in liquor, medical, pharmaceuticals, beverages, food, agrochemicals, edible oil, lube oil and various other industries. Capping heads can be adjusted for any shape and sizes bottles.