| Modèle | Hauteur libre |
|---|---|
| GMK7550 | 284 mm - 0.93 pi |
| GMK5225 | 295 mm - 0.97 pi |
| GMK5165-2 | 356 mm - 1.2 pi |
| GMK5115 | 485 mm - 1.6 pi |
| AT9120 | 280 mm - 0.92 pi |
| AT865 | 275 mm - 0.9 pi |
| AT700D | 333 mm - 1.1 pi |
| AT700B | 635 mm - 2.1 pi |
| AT400 | 356 mm - 1.2 pi |
| AT1100 | 300 mm - 0.98 pi |