This machine is single-headed automatic high-frequency plastic welding machine. It is used on electronic toy, hardware tool, craft gifts, sports equipment, medical device and so on. Singleside or double sided vacuum thermoform packing , plastic boxes forming, brand, inflatable toys and cushion. Model: bz-4000t-sb/rb, bz-6000t-sb/rb, bz-8000t-sb/rb High frequceny output: 4kw, 6kw, 8kw Power supply input:6.5kva, 7kva, 14kva Power supply voltage: ac380v/ tn-s, ac380v/tn-s, ac380v/tn-s Oscillation tube: e3062, 7t85rb, 7t69rb Oscillation frequency: 27.12mhz or 40.68mhz, .12mhz or 40.68mhz, 27.12mhz or 40.68mhz Gap of electrodes: 220m, 220mm, 250mm