Do I need a leveler or a straightener?
Understanding the difference between a corrective leveler and a straightener is key when specifying what type of equipment is required for a certain job. A straightener will only correct for coil set and some cross bow as it has no adjustable back up rolls. Coils that have already been leveled and only have a memory from being wound up (coil set) within them can be corrected by utilizing a straightener and adjusting the head tilt based on material thickness. Coils that have other conditions such as edge wave or center buckle require the use of a corrective leveler to obtain flat material from these incoming coil conditions. A corrective leveler has power adjusted back up rolls to allow you to work the material in specified regions as required to flatten the strip. A coil that has edge wave requires the center of the strip to be worked and stretched to have the same length material as the outside edges. In center buckle applications just the opposite is required. The center of the mater
