sermed produces a range of molded commutators with a brush diameter from 30 to 200mm.

For the design, 2 technologies can be chosen, depending on customer requirements:

• commutators with internal reinforcing rings for a good mechanical strength.
• commutators for current use using specially designed copper segments, embedded in the resin.

Copper segments :

They are carried out following the use of the commutator, in electrolytic copper (Cu a1) or silvered copper, 0.03% or 0.1% (Cu Ag).

Molding compounds :

The commutators are molded with highly glass fiber reinforced phenolic resins.
These resins are class H and the dielectric properties are very high.

Mica-insulation between copper segments :

wo versions are proposed : flush or sub flush mica.

Commutator bushing :

Made of steel, or directly molded in the resin corps, with or without different ventilation holes.