Cold rolling mill 20Hi

Delivering world records for strip thickness, width and rolling speed, and benefits from advanced flatness control and better cooling, the DMS 20Hi cold rolling mill offers: Minimum strip thickness: below 30 microns Maximum strip width: 1,880 mm Maximum rolling speed: 1,200 mpm DMS 20Hi mill for GIGA steel for automotive applications WORLD'S FIRST How thin can you roll ultra high-strength steel grades? This is the challenge put by the automotive industry, and recently met by POSCO with expertise from Fives. POSCO has been developing its GIGA steel for automotive applications since 2016. GIGA steel has the highest tensile strength (2,000 MPa) and excellent formability. It is able to produce complex auto parts without any special processing and meets very stringent safety standards. Fives pursued a unique approach - to use a similar process to stainless steel cold rolling. We designed a robust monobloc - DMS 20Hi EcoMill - for thin GIGA steel with the following results: Improved design The improved features for DMS 20Hi EcoMill include increased rolling speed, new design of strip and work roll spraying, new strip wipers, improvements for fume exhaust, and a cutting-edge concept for flatness actuators and mandrel greasing. BENEFITS 10% increase in productivity Less energy consumption Less maintenance Ease of operation Overall reduced environmental impact The cold rolling mills are essential to reduce strip thickness while guaranteeing strip surface quality. With more than 100 references worldwide over last 60 years, Fives’ range of DMS 20Hi cold rolling mills (CRM) is proven for applications in stainless and silicon steels, as well as for nonferrous materials.