Seyit Usta Other models
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Seyit Usta: three-axle trailer, built 2021 to 2024, gross weight 39,000 kg, EU category O4, wheelbase 7,280 mm, payload 33,600 kg
With a gross weight of 39,000 kg, the trailer Seyit Usta, built between 2021 and 2024, falls into EU category O4, near the upper limit of trailer weights permitted on ordinary roads. Six wheels on a 7,280 mm wheelbase show a three-axle layout with widely spaced axles.
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At a length of 9,460 mm and a width of 2,550 mm, an unladen weight of 5,400 kg leaves a payload of 33,600 kg, more than six times the vehicle's own weight. Such a large gap between unladen and gross weight is only achievable with a frame and axles designed for very high loads.
Category O4 requires air brakes acting on all three axles. A trailer like this is towed by vehicles holding driving licence category CE, in practice semi-tractors or heavy trucks with a matching towing capacity and coupling load.
Buying a newer, heavy three-axle trailer used, actual usage matters most: full loading close to the payload limit over several years stresses the frame, axles and brake system more than the build year would suggest. Axle bearings, brake pads and the tightness of the air brake system need checking at inspection, not just the outward condition. Dents and scoring concentrated in one spot on the floor point to cargo repeatedly loaded at the same point, which at this payload accelerates wear on the frame beneath it, so a wider spread of light wear is the better sign.
Sources: SpecCodex-Register: Kennwerte des Modells SEYIT USTA
Models
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
