Autokaping

Autokaping, or automatic capping, is an automated process used on packaging lines to seal containers with caps. The system automates cap feeding, orientation, placement, and torque-controlled tightening to produce uniform seals.

A typical autokaping system includes a cap feeder, a cap orienter, a capping head, and a torque-sensing mechanism. Containers move along a conveyor; caps are picked, aligned, and seated onto the containers, then torqued to a predetermined value. Sensors verify cap presence and sealing torque, and an ejector or reject station removes bottles that fail the test.

Common capping methods include screw-on caps with torque control, crimp caps for certain bottle types, and snap-on caps. Some lines use servo-driven heads or vacuum-assisted feeders to accommodate variations in cap size and neck finish. Modern equipment often integrates changeover programs, quick-change tooling, and inline quality checks.

Autokaping is widely used in beverage, pharmaceutical, and cosmetic packaging, as well as food and household products. Benefits include higher throughput, improved seal consistency, reduced labor, and better hygiene. Limitations include the need for compatible cap and bottle finishes, precision in the neck finish, and proper machine setup to avoid over- or under-tightening.

Historically, capping automation developed alongside broader packaging automation and is now a standard feature on many production lines, enabling high-volume, repeatable sealing processes.