QL-W72 New design custome weld neck flat face (ff) flanges
Ningbo Qilong Plastic Co., Ltd. [China] 
1.Powerful R&D Team 2.Welding/Grinding/Sensitivity 3.Welding Helemts/Machines/Cables 4.Fashion design
| ADF DX-300F | ADF DX-350D | ADF DX-400S | |
| Optical Class | 1 / 2 / 2 / 3 | 1 / 2 / 2 / 3 | 1 / 2 / 2 / 3 |
| Viewing Area | 90×35mm | 90×35mm | 92×42mm |
| Cartridge Size | 110×90×9mm | 110×90×9mm | 110×90×9mm |
| Arc Sensor | 2 | ||
| Light State | DIN 4 | ||
| Dark State | Fixed shade 10(11 ) | Variable shade, 9 ~13 | Variable shade, 9 ~13 |
| Shade Control | - | External,Variable | External,Variable |
| Power On/Off | Fully Automatic | ||
| Sensitivity Control | Unadjustable,Auto | Low — High, by infinitely dial knob | Low-High, by switch button |
| UV/IR Protection | DIN 16 | ||
| Power Supply | Solar cells. Re-chargeable battery No battery change required | Solar cell. Battery change required2×AAA Alkaline batteries | Solar cells. Re-chargeable batteryNo battery change required |
| Switching Time | 1/5000S,from Light to Dark | 1/15000S,from Light to Dark | 1/15000S,from Light to Dark |
| Dark to Light | 0.25-0.45S Auto | 0.1-1.0S by infinitely dial knob | 0.25~0.30S at fast position, 0.65~0.85S at slow position |
| Low Amperage TIG | ≥35amps(DC), ≥35amps(AC) | ≥20amps(DC),≥20amps(AC) | ≥20amps(DC), ≥20amps(AC) |
| Grinding Function | NO | NO | NO |
| Low Volume Alarm | NO | NO | NO |
| ADF self-check | NO | NO | NO |
| Operating Tep. | -5°C~+55°C | ||
| Storing Tep. | -20°C~+70°C | ||
| Warranty | 2 Years | ||
| Weight | 480g | ||
| Packing Size | 33×23×23cm | ||
QL-W72 New design custome weld neck flat face (ff) flanges
