High-quality ring-shaped iron core material We choose high-quality and low-loss silicon steel sheet with thickness of 0.23MM to 0.35 mm.. Because the structure is a ring structure along the magnetic circuit, the magnetic circuit is completely closed and there is no magnetic leakage. The ring winding machine is used for winding quickly and conveniently, and the production efficiency is high. The magnetic properties were obtained by stress-relieving annealing process.

It is applied to electromagnetic components such as ring transformers, current transformers, reactors and chokes.