This Heavy duty corrugation machine with four times capacity in production than ordinary corrugation. The machine is provided with steam shower and three pre-heaters for liner paper as well as fluted paper. The first flute roll is provided with springs on both ends to have the fine adjustment. The gum tray is provided with geared motor on the gum roll, which will continously rotate the gum to keep the gum in proper viscosity. The gum tray is also provided with water flow to keep the gum cool. The Reel Stand is provided with self loading arrangement with twin unwinding shafts and is capable of taking the reel of 48" diameter. The machine is provided with over head bridge with guide way, which will have the time of setting of single Facer and will be going directly in rotary sheet cutter to cut the require size. This will be without damaging the flutes.