Technical register for agricultural, construction and commercial machinery · sourced data
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Fruehauf ONCRK

8 models in this series

Fruehauf ONCRK – semi-trailers from 22 to 39 t gross weight: the type series from the inventor of the semi-trailer, up to 14 m long

Fruehauf ONCRK 30-128 A
Pictured: Fruehauf ONCRK 30-128 A

Fruehauf is credited with inventing the semi-trailer: in 1914 August Fruehauf built the first trailer in Detroit to be towed by a motor vehicle instead of horses, founding an entirely new vehicle class. The ONCRK series states the gross weight in tonnes within its type number – ONCRK 22-110 stands for 22 t, ONCRK 39-327 for the heaviest version in the register at 39 t.

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The register lists 8 versions here with unladen weights from 7,750 to 9,810 kg and gross weights from 22,000 to 39,000 kg. Lengths range from 11,600 to 14,000 mm, widths from 2,550 to 2,600 mm.

As a descendant of the first semi-trailer, the ONCRK series represents classic European long-haul semi-trailer transport, in which Fruehauf ranked among the defining brands for decades alongside makers such as Fliegl and Schmitz Cargobull.

When buying one of these older chassis, check the frame and main beams particularly carefully for corrosion and cracks, as well as the axle assemblies, suspension and brake system with its connections. The kingpin and the wear plates of the bearing surface also belong on the checklist; spare parts for this era are generally only available through specialist commercial-vehicle workshops. Assessing the condition of the tyres and wheels also forms part of the basic inspection for these historic chassis.

Sources: SpecCodex register, model data: Fruehauf ONCRK

Models compared

8 of 8 models.

ONCRK 22-110-A2000 ONCRK 22-110A2000-2001 ONCRK 30-128 A2001 ONCRK 30-218 A2001-2002 ONCRK 30-218A2002-2003 ONCRK 32 220A2004 ONCRK 32-220 A2001-2005 ONCRK 39-327 A2001-2005
Top speed 100 km/h 100 km/h 100 km/h 100 km/h 100 km/h 100 km/h 100 km/h 100 km/h
Wheelbase 7,350 mm 7,050 mm 9,510 mm 9,510 mm 9,510 mm 8,930 mm 9,510 mm 9,860 mm
Length 11,600 mm 11,650 mm 13,900 mm 13,950 mm 13,850 mm 13,900 mm 14,000 mm 13,900 mm
Width 2,600 mm 2,600 mm 2,550 mm 2,600 mm 2,550 mm 2,550 mm 2,600 mm 2,550 mm
Unladen weight 7,760 kg 7,750 kg 8,120 kg 9,080 kg 8,250 kg 8,280 kg 9,810 kg 9,560 kg
Gross vehicle weight 22,000 kg 22,000 kg 30,000 kg 30,000 kg 30,000 kg 32,000 kg 32,000 kg 39,000 kg

Models

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