A Steckel mill, also known as a reversible finishing mill, is similar to a reversing

rolling mill In metalworking, rolling is a metal forming process in which metal stock is passed through one or more pairs of rolls to reduce the thickness, to make the thickness uniform, and/or to impart a desired mechanical property. The concept is simil ...

except two coilers are used to feed the material through the mill. One coiler is on the entrance side and the other on the exit side. The coilers pull the material through the mill, therefore the process is more similar to

drawing Drawing is a form of visual art in which an artist uses instruments to mark paper or other two-dimensional surface. Drawing instruments include graphite pencils, pen and ink, various kinds of paints, inked brushes, colored pencils, crayons, ...

than

rolling Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact ...

. The material is fed back and forth through the mill until the desired thickness is reached, much like a reversing rolling mill.. It is also used to process

steel Steel is an alloy made up of iron with added carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion- and oxidation-resistant ty ...

slabs into hot rolled coil. The Steckel mill allows the rolling of a large slab by providing heated reels on both sides of the mill to store the increased length produced during rolling. These drums allow for additional heat retention and thermal consistency in the rolled piece, which in turn produces improved uniformity throughout the rolled product. A furnace is provided in both sides of the mill, which covers the mandrels each in one side upon which the slab is rolled after every complete pass. Output from Steckel mill varies from 1 to 2 mm. A cutter mechanism is also provided in this mill to cut the irregular head and tail of the incoming slab. In the Steckel mill, several passes have to be taken to get the desired reduction. The Steckel mill has quality problems due to temperature losses. The rate of production in a Steckel mill is lower than a tandem mill.

References

Steelmaking Metal forming {{Metalworking-stub