Leister Bitumat B2 Hot Air Welder Flameless / Walking Dog Sheet Welding Machine New Leister Bitumat B2 -400V Technical specifications Current A: 32 Power W: 6700 Welding nozzle width mm: 100 Temperature °C: 20 - 650 Speed m / min: 0.8 - 12 Airflow %: 8 5 - 100 Dimensions (L × W × H) mm: 690 × 490 × 330 Weight kg: 40