... ,B,C,E 4. Heating type: oil, electricity HRB-280 single facer corrugated machine Purpose and Characteristics: 1 Design Speed: 80m ... width: 1400mm-2200mm3 Corrugated roller:φ280mm4 Fingerless vacuum suction type single facer, the upper and lower corrugated roller made of 48 ... system.11 With preheater for liner paper and steam spray device for medium paper.12 Bearing for corrugated rollers,and pressure ...