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Keppler AN18L: EU class O4 trailer with a gross weight of 18,000 kg, a 4,850 mm wheelbase, four wheels and a payload of about 14,380 kg
With a gross weight of 18,000 kg, the AN18L falls into EU trailer class O4, the heavy trailers above 10 tonnes. Vehicles of this size are used where high payload per trip matters more than the lowest possible unladen weight.
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With an unladen weight of 3,620 kg, the trailer carries a payload of around 14,380 kg, almost four times its own weight. It runs on four wheels with a wheelbase of 4,850 mm and is 2.55 m wide. This ratio of unladen weight to payload is typical of a design optimised for payload rather than its own weight.
Class O4 trailers carry air brakes as standard and need a towing vehicle with a matching air supply and load-dependent brake force control. Driving a combination like this requires licence category CE. Trailers in this weight class also need rear underrun protection under UN/ECE Regulation R58, intended to reduce the severity of collisions where a car runs into the back of the trailer.
When buying a used trailer of this type, it is worth checking all four wheel bearings and brakes for even wear, and the brake lines and couplings for leaks. Also worth checking are the frame for rust perforation and whether the chassis number matches the registration papers, together with the general condition of the drawbar and its coupling head. The rear underrun protection should additionally be checked for secure mounting and any deformation.
Sources: SpecCodex-Register: Kennwerte des Modells AN18L
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Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
