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Kriegler AKR00: an O4-class EU trailer with an 18,000 kg gross weight, 10,950 kg kerb weight and a length of 12.00 m, its 1,310 mm figure being tandem axle spacing.
At a gross weight of 18,000 kg, the Kriegler AKR00 falls into the EU O4 trailer class, the heavy trailers above 10 tonnes towed behind lorries in commercial haulage. At 12.00 m long, it ranks among the longer builds in this weight class, suiting bulky rather than extremely heavy cargo.
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With a kerb weight of 10,950 kg, the payload comes to 7,050 kg, just under two fifths of the gross weight. The comparatively high kerb weight at 12 metres points to a sturdy, stable chassis needed for a long load area. The stated figure of 1,310 mm is not the trailer's wheelbase but the standard spacing between the two axles of a tandem axle group.
As an O4-class vehicle, the AKR00 needs an air brake system and is towed only behind vehicles under a category CE licence. The combination of great length and moderate payload suits bulky but lighter goods, such as building elements, machine parts or unit loads that need more floor space than carrying capacity.
Buying a used long tandem-axle trailer, the tight axle spacing deserves particular attention: tyres and brakes in the tandem group wear unevenly on tight turns, so it is worth checking tread depth and brake lining thickness. It is also worth checking the long chassis for sagging, the air lines for chafing, and the coupling and landing legs for wear from years of loading and unloading.
Sources: SpecCodex-Register: Kennwerte des Modells AKR00
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