Güldner AF
4 models in this series
Güldner AF – field tractors from Aschaffenburg of the 1950s: twin-cylinder diesels at 1,304 to 2,598 cc, 12.4 to 22 kW, types AF 15, AF 20, AF 30 and AF 30 P
Güldner built the AF series in the 1950s at its home site in Aschaffenburg; the company had previously been known mainly as an engine maker before turning increasingly to tractor building. The four types AF 15, AF 20, AF 30 and AF 30 P are ordered by ascending power through the type number, with the P denoting a special version. In 1961 the hydraulics group Linde took over Güldner's tractor division. Before the Linde takeover, Güldner was regarded as a technically accomplished German engine maker, which was also reflected in the construction of the AF tractors.
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The register lists 4 versions with 12.4 to 22 kW from consistently twin-cylinders of 1,304 to 2,598 cc displacement at 1,500 to 1,800 rpm. Unladen weights lie between 1,225 and 2,040 kg, lengths between 2,650 and 2,920 mm, widths between 1,578 and 1,640 mm, and heights between 1,500 and 1,680 mm.
The AF tractors were aimed at small and medium farms in West Germany during the post-war reconstruction period and competed with similarly positioned brands such as Fahr, Eicher and Hanomag, which at the time likewise had compact twin-cylinder diesels in their range.
On a used purchase of such a Güldner classic, check the condition and tightness of the twin-cylinder diesel, wear on the clutch and mechanical gearbox, and corrosion on sheet metal and the frame; parts are now only available through specialists and tractor exchanges.
Sources: SpecCodex register, model data: Güldner AF
Models compared
4 of 4 models.
| AF 151949–1954 | AF 201951–1952 | AF 301948–1951 | AF 30 P1948–1951 | |
|---|---|---|---|---|
| Power | 12.4 kW | 16.1 kW | 22 kW | 22 kW |
| Rated speed | 1,500 rpm | 1,800 rpm | 1,500 rpm | 1,500 rpm |
| Cylinders | 2 | 2 | 2 | 2 |
| Displacement | 1,304 cm³ | 1,630 cm³ | 2,598 cm³ | 2,598 cm³ |
| Fuel tank capacity | 20 l | 36 l | 42 l | 42 l |
| Forward gears | 5 | 5 | 5 | 5 |
| Reverse gears | 1 | 1 | 1 | 1 |
| Top speed | 20 km/h | 19.9 km/h | 20 km/h | 20 km/h |
| Wheelbase | 1,550 mm | 1,550 mm | 1,790 mm | 1,790 mm |
| Length | 2,650 mm | 2,650 mm | 2,920 mm | 2,920 mm |
| Width | 1,578 mm | 1,578 mm | 1,640 mm | 1,640 mm |
| Height | 1,500 mm | 1,600 mm | 1,680 mm | 1,680 mm |
| Unladen weight | 1,225 kg | 1,375 kg | 2,040 kg | 2,040 kg |
Models
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
AF 15
The Güldner AF 15 belongs to the AF series. Production: 1949–1954. The engine delivers 17 hp (12.4 kW), has 2...
AF 20
The Güldner AF 20 is a model in the AF series. Production: 1951–1952. The engine delivers 22 hp (16.1 kW), has 2...
AF 30
With the AF 30, Güldner offers a model from the AF series. Production: 1948–1951. The engine delivers 30 hp (22 kW),...
AF 30 P
The AF 30 P from Güldner is part of the AF series. Production: 1948–1951. The engine delivers 30 hp (22 kW), has 2...