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| Specification | 2m³ | 2m³ | 2m³ | 3m³ | 4m³ |
| Model | DNG-059 / DNG-060 | DNG-058 | DNG-057 | DNG-061 | DNG-062 |
| Nitrogen Production | 2m³ /h | 2m³ /h | 2m³ /h | 3m³ | 4m³ /h |
| Nitrogen purity/% | 99.99/99.999 | 99.99/99.999 | 99.99/99.999 | 99.99/99.999 | 99.99/99.999 |
| Power Supply | 220V/50Hz | 220V/50Hz | 220V/50Hz | 220V/50Hz | 220V/50Hz |
| Power | 3.6KW | 100W | 15W | 15W | 65W |
| Automatic Start And Stop | Standard configuration | ||||
| Configuration | No need for cold dryer or air compressor | need air compressor | need for cold dryer and air compressor | need for cold dryer and air compressor | need for cold dryer and air compressor |
| Appearance Size | 111*63*112 | 111*63*112 | 52x43x100 | 60*56*100 | 72*60*100 |
| Weight | 228KG | 168KG | 62KG | 71KG | 86KG |
| Air Intake Pressure | >0.65<0.8Mpa | 0.65<0.8Mpa | 0.65 <0.8Mpa | 0.65<0.8Mpa | 0.65<0.8Mpa |
| Nitrogen Production Pressure | >0.55<0.7Mpa | 0.55<0.7Mpa | 0.55 S 0.7Mpa | >0.55<0.7Mpa | 0.55<0.7Mpa |
| Recommendations For Adapting Welding Machines | 2 laser handheld welding | 2 laser handheld welding | 2 laser handheld welding | 3 laser handheld welding | 4 laser handheld welding |
