Is it passable to find a DC motor that can handle pulling about 3 tons?Like using it to left a car or somethingAnd what companies manufactures such a DC motors?Thanks
I think Crane duty /hoist duty ,3 phase AC motor should be convenient for such applications. AC motors for such application comes from much larger number of suppliers. They come with integral brake, and perhaps with integral reduction gear also. Electrical control gear (for convenient hoist and lower ) for such AC motors are also very simple in construction in the absence of associated static converters. I have hardly seen industrial use of DC motors for hoist/crane duty applications in the range of your choice. I have come across DC motors for hoist/cranes duty application of much larger size, constructed in split frame, and during the period when AC variable speed motors were not so varsetile. Nevertheless less,(1) You may enquire BALDOR (member of ABB group) motor manufacturer for their POWER MOTORS (DC motors).. They seem to have DC motors for Crane duty application at about 1.5 HP. (2) Perhaps you may also inquire GE ENERGY (Industrial Solution ) for their KINEMATIC industrial motors ( starting from 1/4 HP to 3500 HP) which they appear to recommend in their catalogs, for crane duty applications. Addition after 18 hrs KINEMATIC motors appears to be for DC supply.
