Inline wheel cappers
Pairs of rubber wheels spin the caps down as containers pass on the conveyor. They handle a wide range of round screw caps without change parts. Examples: the XG4 four-wheel screw capping machine at 20–50 bottles per minute and the CG120 high-speed capping machine at 30–120.
Single-head servo cappers
A chuck grips the cap and a servo motor controls torque. This suits lotion pumps, trigger sprays and caps that must be oriented. Example: Servo single-head capper for pump and screw caps.
Rotary and pick-and-place cappers
Caps are sorted, placed and screwed at stations around a turret or table. Example: Rotary bottle capping machine with cap loading. Small dropper bottles often use a vibratory bowl feeder, as on the Dropper & nail polish bottle capping machine with vibratory feeder.
Vacuum twist-off cappers
For lug caps on glass jars of jam or sauce, the headspace is evacuated as the cap is applied. Example: ZK4 vacuum twist-off capping machine.
Can seamers and induction sealers
Metal and PET cans are closed with a seaming machine such as the Tin & aluminium can seaming machine. After a bottle is capped, an induction sealer such as the Water-cooled induction foil sealer bonds the foil liner to the neck for tamper evidence and leak protection.
Questions and answers
Can one capper handle several cap sizes?
Wheel cappers adjust to many round caps. Chuck and pick-and-place cappers usually need change parts per cap size.
