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3 AKS VPV 21000L by Mr: EU class O4 trailer with a gross vehicle weight of 28,000 kg, a length of 8,100 mm and an unladen weight of 7,500 kg
With a gross vehicle weight of 28,000 kg, the 3 AKS VPV 21000L belongs to EU trailer class O4, the heavy trailers above 10 tonnes used in commercial heavy-haul transport. At 28 tonnes, the gross weight is well above the 10-tonne threshold where this class begins.
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At a length of 8,100 mm and a width of 2,500 mm, the trailer has an unladen weight of 7,500 kg and a payload of 20,500 kg. The comparatively short length combined with the high gross weight points to a compact design built for high axle loads rather than a large load volume, the kind used for bulk goods or heavy individual items. At only 8.1 m long, that considerable weight is carried on a correspondingly short frame.
For trailers in this weight class, air brakes with a two-line connection are standard, and the towing vehicle must have a matching brake system. Driving licence category CE is required, since the combined weight of the rig is well beyond the limits of the lighter categories. The towing vehicle's coupling and air supply must also be rated for a 28-tonne trailer load.
On a compact, heavy trailer like this, checking the axle bearings and frame mounts is especially important, since high axle loads on a short base stress the components more than on long semi-trailers. In addition: condition of the brake linings, tightness of the air brake system, tyre condition, and a valid roadworthiness inspection.
Sources: SpecCodex-Register: Kennwerte des Modells 3 AKS VPV 21000L
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