The height of the lower arm can be adjusted in 4 stages according to the size and shape of workpiece or jig
Specification
| Model | Rated capacity (kVA) | Maximum short circuit current (A) | Maximum electrode force (kN) |
| NDZ-070-57K* | 70 | 22 | 6 |
| NDZ-070-51K* | 70 | 22 | 10 |
| NDZ-070-77K* | 70 | 18 | 6 |
| NDZ-100-51K* | 100 | 30 | 10 |
| NDZ-100-77K* | 100 | 25 | 6 |