A slitting line is used to break down master coils into smaller coils of a particular width, that an end user such as a metal stamper, tube producer, rollforming house can use in its production of some type of finished good.  Slitters range from 8" in width to 84", master coil weights can range from 3,000# to 80,000#.  Flat rolled steel can be produced up to 7/8" thick to .006 specialty metals. Speed ranges can be up to 2,000 feet per minute, or as low as 100 feet per minute, depending on the desired processing.