I have a Hobart 4156 grinder with a 15hp 3 phase motor. Bought it for 300. And made a phae converter to get it runnin for 50. Ground 600 lbs the other day in 5 min or so. Could b faster but guy on end wit meat totes catching is slow ( lol). Got an ez-pak 100 lb stuffer. Can stuff 100 hamburger tubes in 12 min. Takes longer to clean it up than use it. Btw I welded wheel barrow wheels to grinder so I can move around in garage. Lol it is a beast but does good work quick and price was right