Design speed: 180m/min. 2.Economic speed:140m/min. 3.Effective width :1400mm-2200mm. Main roller :380mm(different roller type); Pressure roller:385mm; Pre-heating roller:400mm. There are two groups of corrugated rollers on machine ,when working you can choose one of them, the other one is to pre-heat to change corrugated type. It takes small space (other machine like this machine need two single facer machine and take large space ). This machine is controlled by PLC, touch screen show the data and easy operation. Vacuum adsorption single facer machine .upper and lower roller adopts excellent alloy steel, by heat processing ,hardness is HRC58-60,surface is grinding and hard chrome plating or adopts Tungsten Carbon corrugated roll. Independent driving box, 5 shafts transmission. Hard gear, low noise, working stable and the gear has long life. The gluing thickness is adjusted by push rod electrically. Corrugated roller and pressure roller lift lower and upper by hydraulic control, stable working pressure. Corrugated paper be with wet device by steam adjust. This machine is suitable for single facer production line (with two type corrugated roller ), if 5-ply production line adopts two SF-380T, it equals 4 corrugated rollers and it has big market competition.