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Gotha SW24 – EU category O4 trailer: 24,000 kg gross weight, 6,900 kg unladen weight, 13,940 mm length, 2,600 mm width, air brakes
With a gross weight of 24,000 kg, the SW24 falls into EU trailer category O4, the group of heavy trailers above 10 tonnes.
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Unladen weight is 6,900 kg, giving a payload of 17,100 kg. At 13,940 mm long and 2,600 mm wide, this is a long, wide body close to the upper limit permitted for a single trailer on European roads.
Trailers of this size run on air brakes; a mechanical overrun brake is no longer permitted above roughly 3.5 tonnes gross weight. At a length of nearly 14 metres, additional rules on marking overhang and on securing long loads apply; the tow vehicle would be a lorry or tractor unit requiring category CE.
On a used trailer this long, besides the condition of the axles, brake system and linings, what counts most is checking the frame for distortion and cracking, since long bodies are exposed to greater bending forces. The tightness of the air lines, rust at the frame and landing gear, and the lighting working along the full length also belong on the check. On a body this wide, it is also worth checking the side marker lights and reflectors, which are a legal requirement at full vehicle width, along with the condition of the mudguards over such a wide track and the tightness of the electrical connector feeding the lights along the whole length. A recent test certificate for the brake system is worth asking for too.
Sources: SpecCodex-Register: Kennwerte des Modells Gotha SW24
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Trailer in 3D section
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