Sam Dong leads customer
satisfaction with world-class quality
It is a product made by applying insulation
varnish to a cold-worked flat copper wire
and winding multiple strands of conductors,
and then covering them with insulation
and other insulating materials.
By handling the conductor pre-winding process in
our winding production stage prior to the
coil production process, we increase
transformer productivity, reduce load losses due to
multiple potentials in the conductors,
and reduce insulation paper usage after winding.
Contributing significantly to improved cooling efficiency.


Special Insulated Rectangular Wires produced by
winding glass fiber and polyester-glass fiber
are used in special rotors that require excellent
thermal properties and vibration resistance.