EC Motors produce more power in less space
Because of the need for higher performance density in motor winding technology, brushless EC (electronically commutated motors) drives with permanent magnet rotors are increasingly used instead of the asynchronous technology. Due to the compact design, the copper content can in many cases be cut in half.
Manufacturers of electric motors also demand more flexibility of the production technology. For producing asynchronous motors, drawing-in systems are usually used that are initially winding air-core coils only to draw them later into the stator with a tool. In contrast, the concentrated winding of EC stators is more flexible in the manufacturing process, energy saving when implemented, better adjustable during operation and it requires less space.