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| Comparison |
| Specifications | GMD 44 | GMD 55 | GMD 66 |
| Working width (m) | 1.6 | 2 | 2.4 |
| Number of discs with protecting skids | 4 | 5 | 6 |
| Swath width (m) | 1.2 | 1.4 | 1.8 |
| PTO speed (rpm) | 540 | 540 | 540 |
| Transport width (m) | Tractor width + 250 mm | Tractor width + 250 mm | Tractor width + 250 mm |
| Safety break-back | standard | standard | standard |
| Weight (kg) | 366 | 405 | 452 |
| Minimum power requirement for PTO (kW) | 21 | 25 | - |
| Minimum power requirement for PTO (hp) | 28 | 35 | - |
| Tractor hydraulic equipment | 1 SA | 1 SA | 1 SA |
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