Mode Description Technical parameters G.W/N.W BPM800 Geomembrane Welder Voltage: 220V Frequency: 50/60Hz Power: 800W Welding speed: 0.5-5m/min Heating temperature: 0-450â?? Thickness of material to be welded: 0.2mm-1.5mm Overlap width: 10cm Welding width: 12.5mm�?2, interior cavity 12mm Seam strength: 5% base material (tensile resistant in shear direction) Weight: 5Kg Insulation class: class II 9/5kg