Gladstone's latest and most innovative design in de-airing pug mills , The G78 has been designed to offer the studio and educational user with some of the most unique features available on a studio Pug mill . The shredder plates are removable with out the need for stripping the pug mill down , this makes it very easy to remove any foreign material that may be trapped . The G78 also has a vertical split hinged main body that opens up for cleaning , this makes the G78 the easiest pug mill to clean available and leaves its competitors far behind . The G78 not only is easy to clean but incorporates all of Gladstone's unique quality features the main drive is a inline Helical gearbox providing powerful and constant torque , the Vacuum pump is a rotary vane oil immersed providing a  constant 28” ( - 1 Bar) far superior than piston or dry vacuum pumps . The combination of all these features  combined with Aluminium bodies direct on line starters and fully interlocked safety hopper switches make this machine the most user friendly  de-airing pug mill on the market .