... .benchmark poles: 4P7.Applications: various operation systems by which speed-regulation is needed, such as metallurgy, chemistry, textile, ... pumps, machine tool, etc.8.Features:Stepless adjustable speed operation in a wide rangeGood performance of the system, ... pulse impactSeparate fan for forced-ventilation Performance Data synchronous speed is 1500r/min at 50Hz Type kWCurrentARated TorqueN· ...