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Sh KHT20: eight-wheel trailer, built 2009, gross weight 20,000 kg, EU category O4, wheelbase 6,220 mm, payload 15,180 kg
Built in 2009 with a gross weight of 20,000 kg, the KHT20 falls into EU category O4. Eight wheels on a 6,220 mm wheelbase show several axles spread over a comparatively long footprint rather than a tightly grouped axle set. The model designation KHT20 matches, with the number 20, the registered gross weight of 20,000 kg, a naming pattern common for commercial vehicles of this kind.
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At a length of 8,200 mm and a width of 2,490 mm, an unladen weight of 4,820 kg leaves a payload of 15,180 kg, more than three-quarters of the gross weight. Eight wheels on this footprint spread the high axle load across more contact area than four wheels could.
Category O4 requires air brakes acting on every axle. A trailer like this is towed by vehicles holding driving licence category CE or C1E, matched to the combination's permitted gross weight and to the approved coupling load of the hitch.
Buying an eight-wheel trailer used, even wear across all tyres comes first: one-sided wear on one axle points to a skewed axle or an unevenly working brake system. Axle bearings, brake pads and the frame around the axle mounts need checking, as does the tightness of the air lines along the full length. The corners of the load bed are worth checking too, where corrosion from water collecting near the loading ramps tends to appear first on an eight-wheel trailer with this wheelbase.
Sources: SpecCodex-Register: Kennwerte des Modells KHT20
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