Rotary vacuum dryer CRN # H 9634.5 shell thickness .500,material SA 240/304 head thickness 1.00, head material SA 516-70 Sigle ribbon carbon steel mixer Driven by a Baldor AC motor through a gearbox 230/460 v, UL listed class 1 group D Drum measures 120" long x 51" w x 51" h.