Normag NG 25
Built: 1942–1947 · Series: NG
More machines from model year 1942
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Normag NG – five one- and two-cylinder tractors from the NG 10 to the NG 25 from Nordhausen/Zorge, 11 to 18.3 kW, 1,180 to 3,982 cm³ displacement, including a wood-gas version
Normag was a farm-machinery maker from Nordhausen, later Zorge, which built a series of one- and two-cylinder diesel tractors under the NG designation; the register lists here the NG 10, NG 15, NG 22, NG 23 and NG 25, with the number naming the power class. One of the versions ran on a wood-gas system, common during the war and immediate post-war period due to diesel shortages.
Read on 3 more paragraphs
The register lists here five versions with 11 to 18.3 kW, or 15 to 25 hp, from one- or two-cylinder engines of 1,180 to 3,982 cm³ displacement, unladen weights from 1,200 to 2,290 kg, lengths from 2,530 to 3,000 mm, widths from 1,500 to 1,600 mm and heights from 1,440 to 1,850 mm at speeds of 1,500 to 1,600 rpm.
As a small to medium farm-machinery maker in central Germany, Normag competed with Lanz, Deutz and the early post-war models from Fendt and Eicher; the one- and two-cylinder design with rugged slow-running engines was built for the smaller and medium farms of the period.
When buying used, the condition of the cylinder bore and injection pump, tightness of the cooling system and corrosion on sheet-metal parts and wings matter; since Normag no longer exists as a brand, spare parts can be sourced almost exclusively through collector markets or new-made parts from specialists in historic farm machinery.
Sources: SpecCodex register, model data: Normag NG
Technical data
Engine
| Engine | MWM-Zweizylinder-Gasmotor(TG 15-Z)3982 cm³25 PScorrect |
|---|---|
| Fuel | Gas (Holzgas)correct |
| Power | 25 hp (18.3 kW)correct |
| Rated speed | 1,550 rpmcorrect |
| Cylinders | 2correct |
| Displacement | 3,982 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,000 mmcorrect |
|---|---|
| Width | 1,600 mmcorrect |
| Height | 1,850 mmcorrect |
| Wheelbase | 1,815 mmcorrect |
| Unladen weight | 2,290 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4/1-manual gearbox gearboxcorrect |
| Forward gears | 4correct |
| Reverse gears | 1correct |
| Front tyres | 5.50-16correct |
| Rear tyres | 9-24correct |
| Top speed | 19.8 km/hcorrect |
Origin and approval
| Construction | frameless unit constructioncorrect |
|---|---|
| Units built | 2,449correct |
Where this model stands
Power-to-weight ratio: 8 kW/t (18 kW / 2.3 t)
Power class: Compact (< 40 hp)
Stronger than 12% 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 Normag NG 25 have?
The Normag NG 25 delivers 25 hp.
How much does the Normag NG 25 weigh?
The unladen weight is 2,290 kg.
What engine does the Normag NG 25 have?
2 cylinders, 3,982 cm³ displacement, Gas (Holzgas).
How fast does the Normag NG 25 go?
Top speed is 19.8 km/h.
What are the dimensions of the Normag NG 25?
3,000 mm × 1,600 mm × 1,850 mm.
When was the Normag NG 25 built?
Production years: 1942–1947.
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 23 individual figures for this model. They come from 2 recorded sources; 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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