Use of gage IP-4 to measure the flatness of sheet on cold-rolling mills

The gage IP-4 is a Russian-made noncontact flatness gage that can measure the flateness of ferrous and nonferrous strip and sheet on hot- and cold-rolling mills and other types of equipment (straightening machines, coilers, shears, etc.). The IP-4 gage is significantly less expensive than its counterparts, is resistant to vibrations and other factors that complicate measurement during the rolling operation, and has almost no operating costs. The IP-4 has been subjected to repeated and extensive testing and is ready for use in the manufacture of rolled products.