Mobile Gravel Pug Mills For Sale Used. FOB Reference Price: Get Latest Price Used Pug Mills for sale International equipment more. Used pug mills 46 listings, Mixer, Pug Mill, Jeffrey, Twin Shaft, 50 HPMixer, Pug Mill, Jeffrey, Twin Shaft, 50 HP Jeffrey pug mill, twin shaft mixer, trough measures 48 wide x 10 long x 39 deep Complete with 2 24 diameter paddle type arms with removable paddl.