A copper commutator is a critical component in many electric machines, especially motors and generators. Essentially, a commutator is a rotary switch that reverses the current direction in the rotor windings. This reversing action ensures that the torque remains in a consistent direction, allowing the motor or generator to function properly.

The commutator is typically constructed as a series of copper segments arranged in a cylinder, with each segment connected to one end of an armature winding. As the armature rotates, brushes, usually made of carbon, slide over the commutator segments and provide electrical contact.

Use:

• Locomotive Train system: DC traction motors which utilized commutators and brushes to convert electrical energy into mechanical movement.
• DC Traction system besides locomotives, other transit systems like trams and some types of subway or metro trains utilized DC traction motors with commutators.
• Generators: some generators, especially those that produce direct current (like in older automotive charging systems), used commutators.

Key Features:

• Conductivity
• High Purity
• Precise Dimension and Shape
• Mechanical Strength
• Bendability
• Flatness
• Hardness
• Anti-Softening
• Alloy Content