JST employs Stolberg winding equipment for fabricating the primary and secondary coils prior to casting. This equipment is controlled by microprocessors to ensure the proper tension during the winding process for both wire and sheet windings.

HV winding machine with computer numeric control of tension and winding speed to ensure coil winding uniformity.

For designs in which the electrical current of the secondary windings is high, a sheet conductor, such as the copper sheet shown here, is used to form the winding. The proper tension is maintained as the sheet conductor is fed to the winding mandrill.

Conducting sheets are wound together with a sheet of insulating material.

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