Special Features: Automatic coil loading and unloading Sundwig impact jet cooling system for optimum use of the installed drive power and design to avoid heat streaks on the strip Non-contact oil wiper system by means of...... Special Features: Automatic coil loading and unloading Sundwig impact jet cooling system for optimum use of the installed drive power and design to avoid heat streaks on the strip Non-contact oil wiper system by means of a double air knife system Sundwig flatness control system Sundwig supplied a 20-high mill of the proven Sundwig four column (SFC) design to ALZ, Belgium. This design has been successful for 40 years,due to its reliability, extreme precision and product quality obtained even at high rolling speeds. With this supply, Sundwig has re-confirmed efficiency of 20-high mills in four column design for large strip widths.