atomizer baghouse discharge. (1) row swing hammer design. 3/60/230/460 volt UL label Single screw feeder belt driven by 1/4 HP, 1/60/115/230 volt, 1725 rpm variable speed X-proof motor. Feeder driven thru Boston gear reducer Mdl UF113A20, rated for 1/3 HP, 20:1 ratio.