Sundwig 4-high cold rolling mill
ANDRITZ high-capacity 4-high reduction rolling mills combine 150 years of experience with outstanding features in cold rolling for carbon steel, stainless steel, and other material.
Product description
The Sundwig 4-high mill is equipped with positive and negative work roll bending in order to influence the shape and the flatness of the strip. Either the work roll or the back-up roll is driven, depending on customer requirements. The diameter of the 4-high work rolls amounts to approximately 1:4 in relation to the barrel length. This type of rolling mill is mainly used in offline applications for cold rolling of soft and medium strip and for a wide range of strip widths, as well as for break-down rolling in offline applications.
Strengths and benefits of the 4-high cold rolling mill
- Rolling technology for highest quality standards
- Proven and sophisticated design, with more than 50 references worldwide
- Meets the most exacting requirements regarding process technology, reliability, and maintenance
- Deformation-optimized housing geometry
- Hydraulic long-stroke cylinders, exchangeable as a complete constructional unit
- High screw-down speed
- High control dynamics
- Mill-fixed work roll bending (Mae West block) – positive and negative
- Automatic passline adjustment
Corresponding E&A models
- Strip thickness control
- Strip flatness control
- Roll force model (Ford, Ellis, Bland, Hitchcock)
- Strip temperature model
- Strip flatness model
- Pass scheduling program
- Long-term pass schedule and mill pre-set optimization program
