Skin-Pass Mill

The advantages of skin-pass mills (also known as temper mills) from Primetals Technologies include full compliance with tight strip elongation tolerances, excellent flatness performance, high surface quality, and the availability of wet and dry skin-passing modes. Primetals Technologies supplies stand-alone and inline skin-pass mills in either single or two-stand design for adjusting the final mechanical properties, flatness, and surface finish of strip. Thanks to its higher flatness control ability, 6-high Universal Crown Control Mill (UC-MILL) is the preferred skin-pass mill solution for meeting the continually increasing demands placed on strip flatness, elongation, and roughness, especially for hard-material grades.

In addition to a single skin-pass mill in single direction, Primetals Technologies supplies two mill stands temper mill, which includes Double Cold Reduction (DCR) mills with two or even three mill stands for harder tin materials. Single or double-stand skin-pass mills are placed in-line at the exit of continuous annealing and continuous galvanizing lines. 6-high Universal Crown Control Mills are supplied in response to recent requirements to roll harder material, such as hard tin plate and AHSS, with improved strip flatness control capability.

Main Benefits of Skin-Pass Mills from Primetals Technologies

• Tight strip elongation tolerances
• Excellent flatness performance
• High surface quality (roughness, peak count, low residuals)
• Wet and dry skin-passing modes
• High-speed roll changing
• Stable rolling