... Speed Range: 180-3000r/min Z4 Series DC motor rolling mill DC Motor Power Range: 2.2-1400kW Speed Range: ... 180-1500r/min IP21S,IP23, IP44 Z4 Series DC Motor are dominant products of our factory. The Industry ... seven-times.Raged Speed(rpm): 3000, 1000, 750, 600, 500, 400, 300, 200r/m. Total nine grades ... negotiated.Modes of cooling for all the Z4 DC motor are separate cooling, Force ventilated, Cooling by ...