Nanotec is now offering the slotless BLDC motor DS16 for high-speed applications such as drills, grinders, or tattooing instruments. The stator of the DS16 consists of ring-shaped plates with a flat winding on the inside. Since the windings don’t have an iron core, the motor's inductance is very low and the current rises rapidly. In addition, the amount of iron lost is reduced and the motors have a high efficiency rating. During slow operation, the lack of torque ripple has a positive effect. Unlike standard BLDC motors, the magnetic field isn’t reinforced at the pole shoes and there is no cogging torque.