The capping unit is built and designed to align, sterilise (optional), and screw the caps on to the bottles. The location of the caps is made with a round orientation unit or with an orientation conveyor. Sterilising the caps can be integrated into the cap slide, with ozone gas.
The cap screwing unit is made with a magnetic, torque-limited, gear motor, or with a servo-driven spindle. All the parameters are adjustable from the controller of the filling machine.