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Agro TA-EST/30 – class O4 trailer with 42,000 kg gross weight, 8,850 kg unladen weight, six wheels and a 7,150 mm wheelbase, Netherlands
With a gross weight of 42,000 kg, the TA-EST/30 belongs to EU trailer class O4, the heavy trailers above 10 tonnes. The trailer is registered in the Netherlands. Trailers of this class in the Netherlands are traditionally used to haul bulk material, construction goods or agricultural produce and usually run on six or more wheels to spread the load across several axles.
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The TA-EST/30 has an unladen weight of 8,850 kg against a gross weight of 42,000 kg, giving a payload of 33,150 kg. Length is 10,550 mm at a width of 2,550 mm, and the wheelbase is 7,150 mm across six wheels. The permitted top speed is given as 100 km/h, typical for braked trailers in this weight class.
Class O4 requires an air brake system under EU vehicle law; the simple overrun brake of classes O1 and O2 is not sufficient above 10 tonnes. Six wheels on a 7,150 mm wheelbase spread the load across several axles, which is necessary for road approval at a 42-tonne gross weight. Towing requires a category CE licence.
When buying used, check axle and wheel-bearing wear, especially if the trailer worked on construction sites with varying loads. The air brake system, including lines, coupling heads and brake cylinders, should be inspected, as should the sides or body for deformation from earlier overloading. Corrosion on the chassis, axle brackets and coupling is a common weak point on earthmoving-related vehicles. Axles and brake components from major suppliers such as BPW or SAF make spare parts easier to source independently of the vehicle maker.
Sources: SpecCodex-Register: Kennwerte des Modells Agro TA-EST/30
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