8 material differences · fewer than 12
Tractor oneGüldner AF 301948–1951No measured PTO figureTractor twoLanz D 85391934–1939No measured PTO figure
Which should you choose?
Read our verdict on the AF 30 and the D 8539 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
8 material differences · 1 fields identical or within 5%, which is not counted as material
| Field | AF 30 | D 8539 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 30 hp | 29.5 hp | — |
| Engine declared | Güldner 2F | — | — |
| Displacement declared | 2.60 L | — | — |
| Maximum torque declared | 110 lb·ft · 150 N·m | — | — |
| Transmission | |||
| Top speed declared | 12.4 mph · 20 km/h | 13.4 mph · 21.5 km/h | +8% D 8539 |
| Clutch declared | Single-plate dry clutch from Fichtel & Sachs | pedal-operated three-jaw clutch with clutch brake | differs |
| Hydraulics & hitch | |||
| Rear PTO speeds declared | 540 rpm | — | — |
| Weight & dimensions | |||
| Unladen weight declared | 4,497 lb · 2,040 kg | 9,149 lb · 4,150 kg | +103% D 8539 |
| Wheelbase declared | 70.5 in · 1,790 mm | 76.4–77.8 in · 1,940–1,975 mm | differs |
| Length declared | 115.0 in · 2,920 mm | 129.9 in · 3,300 mm | +13% D 8539 |
| Width declared | 64.6 in · 1,640 mm | 70.9 in · 1,800 mm | +10% D 8539 |
| Ground clearance declared | 13.0 in · 330 mm | 9.4–10.6 in · 240–270 mm | differs |
| Fuel tank declared | 44.4 qt · 42 L | 95.1–100.4 qt · 90–95 L | differs |
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.
Güldner AF 30 sources
- Source: Traktorenlexikon, “Güldner AF 30”
Lanz D 8539 sources
- Source: Traktorenlexikon, “Lanz D 8539”