ESTAMODE has welding automatic centers to produce rotor & stator stacks by means of TIG/MIG/MAG Technology. Specific tools are used to ensure both the stator internal diameter and the slot alignment while the laminations are pressed and externally welded.
A stack manufactured by welding is stiffer than one produced by means of external staples or rivets. The sheet laminations are stamped with special slots in order to enhance the electrical welding arc. This technology is necessary on motors with diameters bigger than 150 mm due to the stack weight is too heavy to use automatic stacking on the progressive die tool.
This technology is applied on industrial, lifting, boat and train motors.