shayonaelect Store Airetrol Air Driven MotorsAiretool motors control expansion by accuratemeasurement of torque. They automatically stopexpansion accurately according to predeterminedsetting.This prevents over- and under- expansion oftubes, assuring uniformly tight tube joints, providingmaximum holding strength for individual tubes. Strong,lightweight aluminum housings provide easier handlingand less fatigue. Rugged drive combines precisioncontrol which measures torque output. All AIRETROLsinclude torque sensing cams designed andmanufactured specifically for tube expandingapplications.Model : 1050-400Part No :8404200Free Speed RPM : 388Please google for more specifications. Posted with eCRATER Mobile