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Hürlimann D-50

Built: 1948–1952 · Series: D-Reihe

More machines from model year 1948

Source: https://commons.wikimedia.org/wiki/File:H%C3%BCrlimann-D-100

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

The D-Reihe series from Hürlimann includes the D-50. Production: 1948–1952. The engine delivers 28 hp (20.6 kW), has 2 cylinders, with a displacement of 2,554 cm³. Rated speed is 1,450 rpm. The machine is 2,400 mm long, 1,500 mm wide and 1,420 mm high. The unladen weight is 1,735 kg. Top speed is 20 km/h. Transmission: 5V/1R. The engine is water-cooled. Tyres: front 6.00 x 15, rear 11.25 x 20. The fuel is diesel. The bore measures 112 mm. The stroke is 128 mm. The gearbox offers 5 forward gears. There are also 1 reverse gears. Injection pressure is 180 bar. Around 473 units were built. The D-Reihe series covers 43 models. Rated output within it ranges from 28 to 145 hp; the D-50 sits at the bottom of that range with 28 hp. Its immediate neighbours are the D 60 Spezial above it with 30 hp. Unladen weight within it ranges from 1,480 to 6,350 kg; here the D-50 sits at the bottom of that range with 1,735 kg. 88 Hürlimann models across 6 series are on record.

Hürlimann D Series – Swiss Diesel Tractors From the 1940s to the 1970s: two- to six-cylinder engines with 20.6 to 106.6 kW (28 to 145 hp), 2,360 to 9,186 cm³ displacement

The D designation covered the diesel tractors built by the Swiss manufacturer Hürlimann in Wil from the late 1940s to the mid-1970s – from the D-400 (production starting 1946) through the D-100 and D-200 families to the D-550 Hydrostat of 1974. That long span explains the wide range of register data: output from 20.6 to 106.6 kW, models rated in horsepower from 28 to 145 hp, and cylinder counts from two to six.

Read on 3 more paragraphs

Recorded operating weight runs from 1,480 to 6,350 kg, displacement from 2,360 to 9,186 cm³, and wheelbase from 1,636 to 3,000 mm. Top speed of the listed models spans 20 to 45 km/h, reflecting the long technical development from early post-war designs to later Synchromatic gearboxes.

Hürlimann was an independent Swiss builder before the company became part of the Italian SAME group. For collectors and buyers of historic D-series tractors, the exact model designation matters most, since engine, gearbox and drive type vary considerably within the series.

Across the three decades of this series, mounting technology also changed: early D models used a category I three-point hitch, the more powerful later types already category II under ISO 730, and the PTO moved from the single-speed 540 standard to a two-speed version with 540 and 1,000 rpm. Parts for early D models are today mainly available through specialist Hürlimann and SAME dealers.

Sources: SpecCodex register, model data: Hürlimann D-Reihe, Hürlimann

Technical data

Engine

Fueldieselcorrect
Power28 hp (20.6 kW)correct
Rated speed1,450 rpmcorrect
Cylinders2correct
Displacement2,554 cm³correct
Bore112 mmcorrect
Stroke128 mmcorrect
Injection pressure180 barcorrect
Coolingwater-cooledcorrect

Dimensions and weights

Length2,400 mmcorrect
Width1,500 mmcorrect
Height1,420 mmcorrect
Unladen weight1,735 kgcorrect

Drivetrain and chassis

Driverear-wheel drivecorrect
Gearbox5V/1Rcorrect
Forward gears5correct
Reverse gears1correct
Front tyres6.00 x 15correct
Rear tyres11.25 x 20correct
Top speed20 km/hcorrect

Origin and approval

Units built473correct

Where this model stands

Power-to-weight ratio: 11.9 kW/t (21 kW / 1.7 t)

Power class: Compact (< 40 hp)

Stronger than 15% 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 Hürlimann D-50 have?

The Hürlimann D-50 delivers 28 hp.

How much does the Hürlimann D-50 weigh?

The unladen weight is 1,735 kg.

What engine does the Hürlimann D-50 have?

2 cylinders, 2,554 cm³ displacement, Diesel.

How fast does the Hürlimann D-50 go?

Top speed is 20 km/h.

What are the dimensions of the Hürlimann D-50?

2,400 mm × 1,500 mm × 1,420 mm.

When was the Hürlimann D-50 built?

Production years: 1948–1952.

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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Other models in this series

D 100

D 200 S

D 500 S

D 60

D 60 Spezial

D 80 SSK

D 80 SSP

D 80 SSP Bj. 1958

D 800

D 90

D-100 Allrad

D-100 S/L

Sources: [1] [2]

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