2011 Vemag Robot 500 Vacuum Filler. Model Robot 500. PC 878 touch controls. SS hopper, 27 in. diameter top to 13 in. diameter bottom 16 in. tall. Infeed height 70 in. tall to top of hopper. 3 in. diameter threaded throat. Carbon steel screws, part # 915 380 048. Knee operated. On casters. Electrical requirements, 220-240 volt, 3 phase, 60 hertz, 23 amp.