Due to their excellent features, Moran 6Hi rolling mills are mainly used for cold rolling of a wide range of strip hardnesses, widths, and gauges, either in processing lines as high-capacity reduction mills or offline as reversing reduction mills.
A special feature of moran 6-high rolling mills are the side-supported work rolls. The patented moran 6-high side support stabilizes the work rolls in this type of mill stand using mechanical, hydraulic lateral support equipment, thus preventing lateral excursion of these rolls. The diameter of the 6-high work rolls is only approximately 30% of the diameter of the 4-high work rolls and double the diameter of those work rolls usually found in a 20-high rolling mill for comparable strip widths. These small work rolls combined with the rugged stand and open design of the lateral support facilitates high pass reduction and transfer of high rolling torques for annealed and pickled, hot-descaled, or black strip.Besides reduction of the strip thickness, the enhanced shapemeter system with its specific pre-settings for the 6-high mill - actuators tilting, intermediate roll shifting, and intermediate roll bending - provides the desired strip flatness for the customer.More special features of the 6-high mill, like the large range of work roll diameters, hydraulic position-controlled adjustment of the screw-down cylinders, and the side-support cylinders in side-support beams secured to the mill, separation of intermediate rolls and side-support cassettes, and the large side-support bearing design to withstand high horizontal side-support forces, for instance, offer distinct economic advantages. The high-impact strip drying system enables a safe rolling process up to the maximum rolling speed.The fully automatic roll change robot enables roll change for work rolls, intermediate rolls, and side support rolls with substantially shortened rolling mill set-up times and, even more importantly, permits contact-free roll change within the shortest time without damaging the rolls.
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