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Kohr DSTA 243K51: an EU class O4 trailer with a 24,000 kg gross weight, 5,300 kg kerb weight and a compact multi-axle group
With a gross weight of 24,000 kg, the DSTA 243K51 falls into EU trailer class O4, the heavy trailers and semi-trailers registered above 10 tonnes. At 2.55 m wide, it approaches the maximum width permitted for road vehicles, pointing to a wide body built for heavy cargo rather than for light, bulky goods.
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At a kerb weight of 5,300 kg, the payload works out to 18,700 kg, more than three and a half times the trailer's own weight. A gross weight this high is normally carried not on a single axle but on a multi-axle group; the recorded spacing of 635 mm matches a close spacing within such an axle group rather than a single wheelbase running the full length of the vehicle.
Class O4 requires compressed-air brakes throughout. A tightly staggered axle group at a high gross weight is typical of compact yet load-bearing trailers used in building-material or heavy transport, where limited standing space on site is needed alongside high load capacity underneath.
When buying used with an axle group like this, checking all wheels and brakes for even wear matters most: with closely staggered axles, load is distributed unevenly during manoeuvring, which can cause one-sided wear over time. The air-brake lines and the frame around the axle mounts are equally important to check before any purchase.
Sources: SpecCodex-Register: Kennwerte des Modells Kohr DSTA 243K51
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