Technical register for agricultural, construction and commercial machinery · sourced data
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Lindner S - Serie

3 models in this series

The S - Serie series from Lindner comprises 3 models.

Lindner S series – the Bergfreund range BF 450 S, BF 550 S and BF 650 S from Kundl: three- and four-cylinder diesels, 48 to 58 hp, 2,250 to 2,400 rpm

Lindner BF 450 SN / SA
Pictured: Lindner BF 450 SN / SA

The S series covers at Lindner in Kundl the more powerful Bergfreund types BF 450 S, BF 550 S and BF 650 S, which build on the 50 series but are designed with bigger engines and higher weight for heavier draft work. The SN and SA equipment levels differ in fittings and tyres.

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The register lists here 3 versions with 48 to 58 hp from three- to four-cylinder diesel engines of 2,500 to 3,860 cm³ displacement at rated speeds of 2,250 to 2,400 rpm. Unladen weights range from 1,620 to 2,650 kg, lengths from 3,370 to 3,810 mm, widths from 1,670 to 1,920 mm and heights from 1,350 to 1,880 mm.

With more power than the 50 series, the S series covered larger mountain farms and mixed holdings in the Alpine region, where transport and PTO implements alongside meadow work demanded higher pulling power; Lindner remained specialised in the niche of sloping ground, where competitors such as Fendt or Steyr were less present.

On a used example, clutch and gearbox condition, hydraulic tightness, wear of the brakes, important on sloping ground, and rust on chassis and mudguards count; parts run through Lindner itself and independent farm-machinery workshops.

Unlike the lighter 50 series, the S series relied on water cooling throughout, which dissipates heat more evenly than an air-cooling system under higher continuous load and draft work. Here too, the PTO runs at 540 revolutions per minute for the usual implements of mountain farming. The S series likewise benefits from Lindner's manufacturing in Kundl, still independent today, which eases the supply of maker's own parts.

Sources: SpecCodex register, model data: Lindner S-Serie, Lindner

Models compared

3 of 3 models.

BF 450 SN / SA1971–1976 BF 550 SN / SA1973–1976 BF 650 SN / SA1971–1983
Power 48 hp 58 hp –
Rated speed 2,400 rpm 2,250 rpm 2,250 rpm
Cylinders 3 4 4
Displacement 2,500 cm³ 3,860 cm³ 3,860 cm³
Forward gears 8 8 12
Reverse gears 4 4 6
Wheelbase 1,945 mm 2,050 mm 2,240 mm
Length 3,370 mm 3,550 mm 3,810 mm
Width 1,670 mm 1,700 mm 1,920 mm
Height 1,350 mm 1,880 mm 1,780 mm
Unladen weight 1,620 kg 1,930 kg 2,650 kg

Models

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