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Lds A75 – O4-class semi-trailer with 38,250 kg gross weight, 14,570 kg unladen weight, 12,250 mm length and 8,800 mm wheelbase for long-haul transport.
Long-haul semi-trailers are typically long, mostly multi-axle bodies that rest on the tractor unit's fifth wheel via a kingpin, transferring part of their weight directly to the tractor. They form the numerically largest segment of heavy trailer vehicles in European road freight.
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The A75 carries a gross weight of 38,250 kg. Against an unladen weight of 14,570 kg that leaves a payload of 23,680 kg. Over a body length of 12,250 mm and a width of 2,520 mm, that load sits on an 8,800 mm wheelbase, a ratio typical of a multi-axle, compactly built semi-trailer. That combination of length and axle spread is common among general-purpose long-haul semi-trailers.
At 38,250 kg gross weight the A75 falls into EU trailer class O4, the heavy semi-trailers above 10 tonnes. Towing it requires driving licence category CE, a tractor unit with a matching fifth wheel, and an air brake system, standard for this class.
When buying a used semi-trailer in this weight class, the chassis around the axle mountings deserves particular attention, since the highest forces occur there. The brake system, axle suspension and even wear across all tyres should be checked carefully given the high payload, along with the kingpin for slack. It is also worth having the chassis welds inspected at the points of highest stress.
Sources: SpecCodex-Register: Kennwerte des Modells A75
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Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
