| Model | SRT6500DW | SRT7500DW | SRT8500DW | SRT12000DW |
| Frequency (HZ) | 50 / 60 | 50 / 60 | 50 / 60 | 50 / 60 |
| Rated voltage (V) | 110, 120, 220, 230, 240 220 / 380 | 110, 120, 220, 230, 240 220 / 380 | 110, 120, 220, 230, 240 220 / 380 | 110, 120, 220, 230, 240 220 / 380 |
| Rated output KVA | 4.6/5.0 | 5/5.5 | 6/6.5 | 10.0/11.5 |
| Max output KVA | 5.0/5.5 | 5.5/6.0 | 6.5/7.0 | 11.0/12.0 |
| Rated welding current DC | 20A-180A | 20A-190A | 20A-230A | 20A-350A |
| DC output | 12V-8.3A | 12V-8.3A | 12V-8.3A | 12V-8.3A |
| Power factor | 1.0/0.8(three-phase) | 1.0/0.8(three-phase) | 1.0/0.8(three-phase) | 1.0/0.8(three-phase) |
| Welding voltage(DC)(V) | 20-30 | 20-30 | 20-30 | 20-32 |
| Electrode (mm) | 1.6-4.0 | 1.6-4.0 | 1.6-4.0 | 1.6-6.0 |
| Noise Level (7m) db (A) | 77 | 77 | 77 | 82 |
| Engine model | S186FAE | S188FBE | S192FE | SV292FE |
| Fuel tank capacity (L) | 12.5 | 12.5 | 12.5 | 28Liter( single fuel tank)56 Liter( if use double fuel tank ) |
| Continuous running time (hr) | 5.8 | 5.3 | 4.2 | 7 hours (single fuel tank) 14hours( if use double fuel tank) |
| Starting system | Electric start | Electric start | Electric start | Electric start |
| Packing size (L*W*H) mm | 760*520*620 | 760*520*620 | 760*520*620 | 1010*630*920 |
| Net weight (KG) | 101 | 106 | 112 | 225 |
| Q'ty/20'GP FCL | 99PCS | 99PCS | 99PCS | 40PCS |
| Q'ty/40'HQ FCL | 230PCS | 230PCS | 230PCS | 82PCS |
