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General view 20 high rolling mill SFC 300x1370 incl. tables for titanium and stainless steel
Complete roll set with suspension (operator's side) 20 high rolling mill SFC 300x1370 for titanium and stainless steel20 high copper rolling mill SFC 220 x 650 mm for a Chinese customer

20-high cold rolling mill

The 20-high rolling mill is designed with advanced features to ensure that the strip shape guarantees best strip profiles and tolerances.

Product description

The special feature in a 20-high mill is the relation between work roll diameter and barrel length. Due to the special work roll support and force distribution, the work roll diameter only amounts to approximately 1:25 in relation to the barrel length. The ANDRITZ 20-high rolling mill is mainly used for cold rolling of pre-rolled soft and hard strip to thinnest final gauges and a wide range of strip widths.

Strengths and benefits of the 20-high cold rolling mill

  • Rolling technology for highest quality standards
  • Proven and sophisticated design with more than 100 references worldwide
  • Meets the most exacting requirements regarding process technology, reliability, and maintenance
  • Large adjustment ranges of screw-down and pass line systems
  • Simple back-up axle design with one-piece support saddles
  • Highly dynamic screw-down system with synchronous cylinders and compact design
  • Push-push axial shifting system and mill-fixed roll bending system
  • Pass line adjustment via mill-fixed wedges
  • Fast roll change times
  • Pre-commissioning at ANDRITZ Sundwig workshop

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
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