Hanomag R 55 ATK
Built: 1952–1957 · Series: R
More machines from model year 1952
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Hanomag R – Core Tractor Series From Hanover, 1942 to 1964: one- to four-cylinder diesels with 8.8 to 43.9 kW (12 to 60 hp), 511 to 5,702 cm³ displacement, water-cooled
The R series was the core tractor line of the Hanover-based manufacturer Hanomag and was built in numerous variants from 1942 to 1964. According to the register, output of the recorded models ranges from 8.8 to 43.9 kW, with models rated in horsepower from 12 to 60 hp, using one- to four-cylinder engines with displacement from 511 to 5,702 cm³.
Read on 3 more paragraphs
Recorded operating weight runs from 800 to 5,200 kg, wheelbase from 1,500 to 2,325 mm, and top speed of the listed models spans 8.5 to 25.2 km/h. Later models such as the R 442 Brillant already carried the name of the later standalone Brillant series.
In 1971 Hanomag sold its agricultural machinery business to Massey Ferguson, marking the end of independent Hanomag tractor production. For a used R model, the exact type designation matters most, as engine and body style differ considerably across this long production run.
The entire production run of the R series, from 1942 to 1964, predates any EU emissions certification, which only began in 1999. With output up to 43.9 kW, the three-point hitch stayed consistently within category I under ISO 730, and the PTO mostly ran single-speed at 540 rpm. Original parts for the R series are likewise scarce today, since Hanomag tractor production has not existed since 1971; they are mainly sourced through specialist vintage-machinery dealers.
Sources: SpecCodex register, model data: Hanomag R
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 55 hp (40.3 kW)correct |
| Rated speed | 1,300 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 5,702 cm³correct |
| Bore | 110 mmcorrect |
| Stroke | 150 mmcorrect |
| Injection pressure | 120 barcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,300 mmcorrect |
|---|---|
| Width | 1,900 mmcorrect |
| Height | 2,250 mmcorrect |
| Wheelbase | 2,325 mmcorrect |
| Ground clearance | 325 mmcorrect |
| Unladen weight | 5,200 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 5V/1Rcorrect |
| Forward gears | 5correct |
| Front tyres | 6.00-18correct |
| Rear tyres | 12.00-24correct |
| Top speed | 17.7 km/hcorrect |
Working data
| Fuel tank capacity | 85 lcorrect |
|---|
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 1,179correct |
Where this model stands
Power-to-weight ratio: 7.7 kW/t (40 kW / 5.2 t)
Power class: Universal (40–100 hp)
Stronger than 38% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Hanomag R 55 ATK have?
The Hanomag R 55 ATK delivers 55 hp.
How much does the Hanomag R 55 ATK weigh?
The unladen weight is 5,200 kg.
What engine does the Hanomag R 55 ATK have?
4 cylinders, 5,702 cm³ displacement, Diesel.
How fast does the Hanomag R 55 ATK go?
Top speed is 17.7 km/h.
What are the dimensions of the Hanomag R 55 ATK?
4,300 mm × 1,900 mm × 2,250 mm.
When was the Hanomag R 55 ATK built?
Production years: 1952–1957.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 26 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data
Tractor in 3D section
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