Bertram Other models
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Bertram PIAU 18: the only trailer of this brand outside the named ranges, model year 2018, 18,000 kg gross weight, 4,000 kg unladen weight
This page carries the only trailer model of Bertram that the register did not assign to a named range: the PIAU 18 from 2018. The model designation gives with its 18 a rounded figure for the gross weight in tonnes.
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The PIAU 18 has a gross weight of 18,000 kg against an unladen weight of 4,000 kg, giving a payload of 14,000 kg. At a length of 9,030 mm, an axle spacing of 6,930 mm and a width of 2,510 mm, it stands on two axles, a light chassis relative to its high payload, as is typical for platform or tipping trailers.
With a gross weight of 18,000 kg, the PIAU 18 falls into EU category O4, where an air brake system is standard. With a payload of 14,000 kg on two axles and a length of over nine metres, its main use lies in moving bulk goods, building materials or machines in commercial haulage.
On a used trailer of this size, what counts is the condition of the air brake system along with its lines and brake cylinders, rust on the frame and chassis rails, the state of the load bed or side boards, and the function of the tipping cylinders and hydraulics if the trailer is built as a tipper, plus the condition of the pintle hitch and its bearing. On two axles spread over more than six metres, it is also worth checking the frame for twisting after heavy loading and the state of side-board hinges and latches.
Sources: SpecCodex-Register: Kennwerte des Modells PIAU 18
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