Kovcheng Other models
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Kovcheng NK 35: a heavy EU class O4 trailer with a 38,000 kg gross weight, 13.18 m overall length and a payload of around 28,370 kg
With a gross weight of 38,000 kg, the NK 35 is among the heavy trailers of EU class O4, well above the 10-tonne threshold that separates this class from the lighter trailer classes below it. At 13.18 m long and 2.55 m wide, it approaches the maximum dimensions permitted for road vehicles and counts among the large-format vehicles used in heavy haulage.
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At a kerb weight of 9,630 kg, the payload works out to 28,370 kg, almost three times the trailer's own weight. A gross weight of 38 tonnes at this length calls for a strong, multi-axle group of the kind needed for bulk goods, building materials or large loads spread across a wide area in long-distance haulage operations, rather than for a single concentrated heavy item.
Class O4 requires compressed-air brakes throughout, and the towing vehicle must be approved for the full trailer weight of 38 tonnes. Trailers of this scale are used almost exclusively in professional long-haul transport or in heavy building-material haulage, not in private use.
When buying a trailer this heavy and long used, the condition of the frame under full load matters most: deflection, cracked welds and corrosion on load-bearing struts should be checked carefully. All brake cylinders, air tanks along the long axle span and the condition of the heavily loaded tyres are equally important to inspect.
Sources: SpecCodex-Register: Kennwerte des Modells Kovcheng NK 35
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