NMK slip-ring motors are used in applications requiring high starting torque or low starting current. They are especially suitable for heavy load inertia applications like mill drives or situations where network conditions are weak.

Slip-ring motors are built using proven standardized motor design, high-quality materials and advanced ventilation technology. This, combined with the fully-braced and vacuum-impregnated windings, ensure they are extremely efficient and reliable.

NMK slip-ring motors are available in 400, 450, 500, 560, and 630 frame sizes with an output power of up to 4,500 kilowatts (kW).