Rotary tattoo machines are quickly gaining the tattoo industries attention. Most rotary machines are very consistent and require less maintenance to operate. They also usually require some type of regular lubrication to keep parts running more efficiently.
Traditional Coil tattoo machines are the industry standard and have been the most popular in the industry for the past 80 years. They haven't changed much since the early tattoo models. There have been many attempts to modernize but mainly in cosmetic attributes.
Coil Tattoo Machines require regular maintenance in tuning and replacing of parts. Like springs, capacitors and contact screws.
Rotary machines hardly need maintenance or replacing of parts. Rotary motors can need replacing after 30,000-50,000 hours.