The Dual Flute High Speed Single Face Paper Corrugated Board Making Machines (DF 50) are fast, simple & safe with unique slide roll system. Our systems allow a complete roll change in less than 30 minutes. Designed in such a way that the rolls are removed and replaced automatically, our machines meet the customer's need without excessive down time. Easy to operate because once the roll cartridges are in respective place, there are no adjustments required to be made and no fine tuning is required. Specifications: Safe - Even when the rolls are hot, the foolproof design of cartridge roll change can be routinely & safely accomplished, even by less experience crews. The quick Flute Change capability allows the box plant greater flexibility in scheduling as well as the ability to offer the customers whatever flute profile he needs.