| Modell | Max. Grabtiefe der vertikalen Wand |
|---|---|
| 9NX-2 | 1167.4 mm - 3.8 ft. |
| 35NXE-2 | 3124.2 mm - 10.3 ft. |
| 35NX-2 | 2947.4 mm - 9.7 ft. |
| 35N-2 | 2438.4 mm - 8 ft. |
| 30NX-2 | 2566.4 mm - 8.4 ft. |
| 28N-2 | 1956.8 mm - 6.4 ft. |
| 25NX-2 | 1956.8 mm - 6.4 ft. |
| 15NX-2 | 1777 mm - 5.8 ft. |