Roof welding machine ROOFON, ROOFON DIGITAL Small, low-priced, light - for the welding of thermoplastic roofing membranes - stepless adjustment of speed, air flow and temperature with potentiometer - automatic drive start system - wrinkle-free welding - seam width of 40 mm - digital control and read out of temperature and speed (RoofOn Digital, see picture below) Perfect seam quality of 40 mm even though its very light weight. The RoofOn guarantees wrinkle-free welding through our unique technology. Technical data Voltage Frequency Power consumption Temperature Speed Air flow max. (20 °C) Air flow Noise level LpA Size (l x w x h) Weight Protection class I BAK Thermoplastic Welding Technology AG Industriestrasse 6 6064 Kerns / Switzerland