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Jokopa 2-13.5-LA: an EU class O4 trailer with a 20,000 kg gross weight, 13,500 mm length and 15,040 kg payload for long-haul general cargo
With a gross weight of 20,000 kg, the Jokopa 2-13.5-LA sits in EU trailer class O4, the heavy trailers and semi-trailers above 10 tonnes that long-haul operators pull behind articulated tractor units and heavy rigs. The type designation 2-13.5-LA uses the figure 13.5 to point directly at the vehicle length of 13,500 mm; length-based model codes like this are common among trailer builders because they reveal the usable load length without a data sheet.
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Empty, the trailer weighs 4,960 kg, and it may be loaded up to 20,000 kg, giving a payload of 15,040 kg. At 13,500 mm long and 2,600 mm wide, it offers a long but not oversized loading area, the kind needed for general cargo, machine parts or palletised goods over long distances.
Driving such a combination requires a category CE licence in most EU states, since the permitted combined weight clearly exceeds the limits of category C. From trailer class O3 upward, a compressed-air braking system is mandatory, and it comes as standard at this weight class; the simple overrun brake fitted to smaller O1 and O2 trailers would not be sufficient here. Carrying 15,040 kg of payload calls for load-rated side boards or a curtain and cargo securing that meets the relevant standards, especially for irregularly shaped general cargo.
Buying a used example starts with the chassis: cracks or through-corrosion on the main rails and axle mounts are the most common reason a trailer fails its next roadworthiness test. The air brake lines and brake cylinders need checking for corrosion and leaks, along with the supply and brake line couplings to the tractor unit. Tyres matter as much for their date of manufacture as their tread, since tyres of this load rating age even with good tread left, and warped side boards point to past overloading.
Sources: SpecCodex-Register: Kennwerte des Modells Jokopa 2-13.5-LA
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