7 material differences · fewer than 12
Tractor oneFord 7700 (A)1976–1981No measured PTO figureTractor twoHanomag Robust 901 A (S)1969–1970No measured PTO figure
Which should you choose?
Read our verdict on the 7700 (A) and the Robust 901 A (S) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
7 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 7700 (A) | Robust 901 A (S) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 90.8 hp | 91 hp | — |
| Engine declared | Ford 256 DF or 268 DF | Hanomag D162 R2 | differs |
| Displacement declared | — | 4.71 L | — |
| Maximum torque declared | — | 207 lb·ft · 281 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 12.3–16.9 mph · 19.87–27.15 km/h | differs |
| Clutch declared | — | Double clutch for transmission and PTO | — |
| Hydraulics & hitch | |||
| Pump flow declared | 10.8 gpm · 41.0 L/min | 8.5 gpm · 32 L/min | +28% 7700 (A) |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 8,305 lb · 3,767 kg | 8,223–8,885 lb · 3,730–4,030 kg | differs |
| Wheelbase declared | 101.6 in · 2,581 mm | 97.4–98.8 in · 2,475–2,510 mm | — |
| Length declared | 160.2 in · 4,069 mm | 157.1 in · 3,990 mm | — |
| Width declared | 64.0–82.4 in · 1,626–2,094 mm | 79.3–84.6 in · 2,015–2,150 mm | differs |
| Ground clearance declared | 21.7 in · 551 mm | 12.6 in · 320 mm | +72% 7700 (A) |
| Turning radius, braked declared | 12.8 ft · 3.90 m | 13.5 ft · 4.10 m | — |
| Fuel tank declared | 188.1 qt · 178.0 L | 132.1 qt · 125 L | +42% 7700 (A) |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
Ford 7700 (A) sources
- Source: Traktorenlexikon, “Ford 7700”
- Source: Traktorenlexikon, “Ford 6700”
Hanomag Robust 901 A (S) sources
- Source: Traktorenlexikon, “Hanomag Robust 901 A (S)”
- Source: Traktorenlexikon, “Hanomag Robust 901 (S)”