Ketchum's air driven automated tattooer allows the operator to efficiently and properly tattoo a large number of pigs per hour. The unit uses Ketchum's 101 style ear tattoo characters that are 6mm (1/4") tall. The automated system will work on piglets 2 days to 2 weeks of age. The characters can be changed by removing a cover and opening our traditional lever lock system. The Automated Tattooer operates under air pressure at 80PSI. The unit comes with a bracket that allows easy mounting to most carts used to process piglets. There is an adjustable slide that allows for adjustment in height of up to 10" that facilitates easy operation. The operator just has to: attach system to processing cart, put desired characters into stamping head, attach airline, put ink on piglet's ear, slide piglet's ear into tattooing slot, push foot pedal, remove piglet's ear from slot, gently rub tattooed area with thumb and return piglet to it's litter. The design of the unit allows consistent pressure to be delivered during each application to ensure adequate tattooing depth is achieved and yields an optimal tattoo. Cost effective efficiencies.