Fives’ rolling mill for challenging high-grade silicon steel

Fives and Xinyu signature for a silicon cold rolling mill

Fives was entrusted by Wisdri (Xinyu) Cold Processing Engineering Co., Ltd., China to design and supply a unique cold rolling mill to process non-grain oriented (NGO) silicon steel, mainly dedicated to the automotive industry (electrical motors).

Wisdri (XinYu) Cold Processing Engineering, a specialist in silicon steel production, is a joint venture between China’s engineering company WISDRI and the steelmaker, Xinyu Iron & Steel Co., Ltd. 

Electrical steel is a special steel tailored to produce specific magnetic properties, resulting in low power loss per cycle, low core loss, and high permeability that is extremely sensitive to produce. 

Fives will design, manufacture and supply a DMS 20Hi cold rolling mill with an annual capacity of 100,000 tons to process NGO high grade 210. The mill is intended for a very demanding application: electric car motors that require extremely high quality. The lead time for the project is also very short: the first coil is to be processed by the end of 2019.

Wisdri (Xinyu) Cold Process Engineering has entrusted this project to Fives as a specialist in stainless and silicon cold rolling mill design with more than 60 years’ manufacturing experience. In that time Fives has supplied more than 100 cold rolling mills and processing lines worldwide.