Dohmen Other models
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Dohmen PL1 - class O4 trailer with a gross weight of 40,000 kg, an unladen weight of 7,500 kg, a length of 11,000 mm and a wheelbase of 8,430 mm, built 2007
With a gross weight of 40,000 kg, the PL1 falls into EU trailer class O4, the heavy category of trailers and semi-trailers above 10 tonnes, as used in heavy-haul and long-distance transport behind articulated tractor units.
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The PL1 dates from 2007 and has an unladen weight of 7,500 kg; against the gross weight of 40,000 kg that leaves a payload of 32,500 kg. Length is 11,000 mm, width 2,450 mm and wheelbase 8,430 mm. The low unladen weight relative to payload points to a design built for load volume rather than for its own mass.
In class O4, a multi-axle compressed-air brake system is mandatory; the overrun brake of the lighter classes is not sufficient above 10 tonnes. Towing requires driving licence category CE, and the towing vehicle's permitted towed mass must be rated for the gross weight of 40 tonnes.
When buying used, the brake system matters most: check lines, brake cylinders and linings on all axles for corrosion, leaks and wear. Chassis and frame should be checked for corrosion and cracks, as should axle bearings, suspension, tyres with their tread depth, lighting and the coupling to the towing vehicle. Exactly one example of this type is registered in the Netherlands; with a 2007 build date, also check the condition of the axle suspension after many years in service.
Sources: SpecCodex-Register: Kennwerte des Modells Dohmen PL1
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