The commutator is designed to complete the armature of EM-70/45 DC motor.
The working surface of the product around the outer diameter totals 2600 mm, the number of commutator bars is 1053 pcs., its weight is 3.6 t.
EM-70/45 motor ensures operation of the piercing mill, which is a part of the pipe rolling unit and is designed for piercing pipes. The commutator in the DC machine is a mechanical rectifier.