Staalmeester | Electric PTO Tractor Hammer Mills Tired of using the only tractor available to operate tractor driven equipment? The Staalmeester electric tractor solves the problem. The electric tractor comes with an electric motor fitted to a frame with v-balls and pulleys to fit any kind of standard PTO. Hammer Mill Test Results Product Overview Gallery Electric PTO Tractor Hammer Mill Additional Info: Product Info: Power options available : 15 kW 18.5 kW 22 kW 37 kW 45 kW Free you tractor to do other work when the pressure is on. Videos Hammermill Playlist Watch the Hammer Mill playlist on our YouTube channel.