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Lanz HL

Q: What engine does the Lanz HL have?

1 cylinders, 6,400 cm³ displacement, Teeröl, Rohöl, Petroleum, Diesel u.a..

Q: What are the dimensions of the Lanz HL?

2,250 mm × 1,370 mm × 2,195 mm.

Built: 1921–1929 · Series: Other models

Source: https://commons.wikimedia.org/w/index.php?curid=9795959 upl

The HL from Lanz is part of the Pozostałe modele series. Production: 1921–1929. The engine delivers 12 hp (9 kW), has 1 cylinder, with a displacement of 6,400 cm³. Rated speed is 420 rpm. The machine is 2,250 mm long, 1,370 mm wide and 2,195 mm high. The unladen weight is 1,850 kg. The wheelbase measures 1,390 mm. Top speed is 4.2 km/h. The engine is Verdampfungskühlung. Tyres: front 720 mm x 120 mm, rear 960 mm x 120 mm. The fuel is Teeröl. Rohöl. Petroleum. Diesel u,a,. Around 6030 units were built. Rated output across the Lanz range ranges from 8 to 40 hp; the HL sits at the bottom of that range with 12 hp. Its immediate neighbours are the D 1106/D 1206 below it with 11 hp and the Alldog A 1305 above it with 13 hp. Rated output across the Lanz range ranges from 8 to 40 hp; here the HL sits at the bottom of that range with 12 hp. 28 Lanz models across 10 series are on record.

Lanz – other Bulldog models from Mannheim: the collective page of the Bulldog, HL, HM and HP types, single-cylinders of 3.8 to 6.4 litres, 6 to 16 kW, running on tar oil, crude oil, paraffin and diesel

This page gathers the Lanz Bulldog types the register could not assign to their own range: Bulldog, HL, HM and HP. Heinrich Lanz AG of Mannheim, a farm-machinery maker since 1859, launched the Bulldog in 1921 with its single-cylinder two-stroke hot-bulb engine, the first field tractor fit for mass production; in 1956 John Deere took over the works, which remains Deere's largest tractor plant outside North America to this day.

Read on 3 more paragraphs

The register lists here 4 versions with 5.9 to 16.1 kW or 8 to 12 hp from the throughout single-cylinder engine of 3,818 to 6,400 cm³ displacement at rated speeds of 420 to 500 rpm. Unladen weights range from 1,150 to 3,330 kg, lengths from 2,050 to 3,180 mm, widths from 1,250 to 1,900 mm and heights from 2,130 to 2,345 mm; fuels used were tar oil, crude oil, paraffin and diesel.

The Bulldog's hot-bulb engine burned practically any available raw fuel, making the tractor independent of diesel shortages and prices – a decisive advantage for farmers from the 1920s to the 1950s that helped make the Bulldog the most widely built German field tractor of its era.

On a used example, the condition of the hot bulb, cylinder liner and water jacket, tightness of the oil sump, condition of the large flywheel, and rust on chassis, mudguards and bonnet after decades of use count; parts for the single-cylinder Bulldogs are available through specialist Lanz Bulldog workshops and vintage-machinery dealers.

Sources: SpecCodex register, model data: Lanz (weitere Modelle)

Technical data

Engine

Fuel	Teeröl, Rohöl, Petroleum, Diesel u.a.correct
Power	12 hp (9 kW)correct
Rated speed	420 rpmcorrect
Cylinders	1correct
Displacement	6,400 cm³correct
Cooling	evaporative coolingcorrect

Dimensions and weights

Length	2,250 mmcorrect
Width	1,370 mmcorrect
Height	2,195 mmcorrect
Wheelbase	1,390 mmcorrect
Unladen weight	1,850 kgcorrect

Drivetrain and chassis

Drive	rear-wheel drivecorrect
Front tyres	720 mm x 120 mmcorrect
Rear tyres	960 mm x 120 mmcorrect
Top speed	4.2 km/hcorrect

Origin and approval

Units built	6,030correct

Where this model stands

Power-to-weight ratio: 4.9 kW/t (9 kW / 1.9 t)

Power class: Compact (< 40 hp)

Stronger than 2% 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 Lanz HL have?

The Lanz HL delivers 12 hp.

How much does the Lanz HL weigh?

The unladen weight is 1,850 kg.

What engine does the Lanz HL have?

1 cylinders, 6,400 cm³ displacement, Teeröl, Rohöl, Petroleum, Diesel u.a..

What are the dimensions of the Lanz HL?

2,250 mm × 1,370 mm × 2,195 mm.

When was the Lanz HL built?

Production years: 1921–1929.

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.
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 18 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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