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SPA3S140SN by Montull: EU class O4 trailer with a gross vehicle weight of 42,000 kg, a length of 14,040 mm and an unladen weight of 8,540 kg
With a gross vehicle weight of 42,000 kg, the SPA3S140SN sits in EU trailer class O4, the heavy trailers and semi-trailers above 10 tonnes, the kind towed behind heavy tractor units in long-haul transport on the main road network between distribution hubs.
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The SPA3S140SN is 14,040 mm long and 2,550 mm wide, with an unladen weight of 8,540 kg. That gives a payload of 33,460 kg. The wheelbase is 9,330 mm, and six wheels are spread across three axles. This tridem axle group spreads the high permitted load over a wide footprint, easing the strain on any single axle and on the road surface.
O4 trailers are fitted with air brakes and a two-line connection as standard. Towing vehicle and driver need licence category CE, since the combined weight of the rig is well above the limits of the lighter categories. The tractor unit also needs an air supply and a coupling sized for the whole combination.
On a three-axle trailer of this weight class, check all three axles carefully for even tyre wear, since one axle running out of line in the tridem group quickly causes uneven wear elsewhere. Equally important: condition of the air suspension bellows, the brake linings on all six wheels, the tightness of the air brake lines, the coupling mounts, and confirm a valid roadworthiness inspection is on file.
Sources: SpecCodex-Register: Kennwerte des Modells SPA3S140SN
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