Industrial equipment and custom parts sourced from vetted Chinese factories since 2007
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Copper foil for transformer foil windings, produced in C1100 alloy from 0.2-3.0 mm thick and 50-1350 mm wide, with an inner diameter of 300/400/500 mm or a size you specify. The base material is oxygen-free electrolytic copper with oxygen content below 0.02% and purity of 99.95% or higher, giving copper content of at least 99%, conductivity of at least 99 %IACS and tensile strength above 193 MPa. The range is made to comply with international standards including American, European, German and Japanese practice, which matters when the finished transformer is sold across several markets from one production line.
Foil width matched to the coil height removes the need to stack parallel conductors and keeps the winding window filled
Edge condition suits foil winding machines so the layer does not crack or curl as it is drawn onto the mandrel
Conductivity of at least 99 %IACS holds the load loss figure quoted in your transformer guarantee
One alloy specification covers American European German and Japanese standard work so a single stock item serves several export markets
Coil inner diameter supplied to your machine mandrel size instead of a fixed reel
Foil cut to the wrong height leaves an unfilled winding window and wastes core space
Poor edge quality tears during winding and stops the line mid coil
Variable copper purity makes weld quality at the foil termination unpredictable
A single national standard on the mill certificate blocks shipment into other markets
Fixed reel sizes need adapters before they can be loaded on the winding machine
| Alloy | C1100 |
|---|---|
| Thickness | 0.2-3.0 mm |
| Width | 50-1350 mm |
| Inner Diameter | 300/400/500 mm or customised |
| Copper Content | at least 99% |
| Conductivity | at least 99 %IACS |
| Tensile Strength | above 193 MPa |
| Oxygen Content | less than 0.02% |
| Purity | 99.95% or higher |
Figures shown are taken from the supplying factory documentation. Anything not listed here is confirmed in writing before order.
A single foil layer replaces many wire turns and shortens winding time per coil
Copper foil carries higher current per unit of cross section and welds more predictably at the termination
Full height foil fills the winding window in one pass instead of several stacked conductors
From 50 up to 1350 mm, cut to the winding window height of your coil.
0.2 to 3.0 mm in C1100 alloy, selected against the turns and current of the winding.
Oxygen-free electrolytic copper with oxygen content under 0.02% and purity of 99.95% or higher, giving copper content of at least 99%.
The range is made to comply with international standards, including American, European, German and Japanese practice. Name the one you need and the certificate will reference it.
Yes. 300, 400 and 500 mm are standard and other inner diameters are made to order for your winding machine.
Lead time depends on thickness width and coil quantity and is confirmed in writing with the quotation.
Send the drawing, capacity or duty cycle you need and we will come back with the factory match, the build detail and the commercial terms.
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