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Meusel MCZA 18/75/2: heavy O4-class EU trailer with an 18,000 kg gross weight, 3,700 kg unladen weight and 14,300 kg payload
The Meusel MCZA 18/75/2 falls into EU trailer category O4 with a gross weight of 18,000 kg, the heavy trailers and semi-trailers above 10 tonnes used in construction and transport logistics behind suitably approved tractor units.
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At 9,500 mm long and 2,550 mm wide, the vehicle weighs 3,700 kg unladen, leaving 14,300 kg of payload, nearly four-fifths of the gross weight. That gives a payload share of around 79 percent of the gross weight.
Such a high payload share on a comparatively compact length points to dense, heavy cargo such as building materials, bulk goods or metal parts rather than bulky, light freight. Towing one requires licence category CE, since the gross weight is far above 3.5 tonnes, and a dedicated compressed-air braking system is standard in this class. Under EU rules, O3 and O4 trailers must carry retroreflective contour markings at the rear and along the sides.
Buying such a payload-heavy vehicle used calls for particular attention to axle play, the frame for cracking around the hitch, and the braking system and its lines. At this payload share, sustained overloading tends to show up first in the springs and axle stubs. After a test drive it is also worth checking that the wheel nuts are properly torqued and inspecting the tyre tread depth. The condition of the drawbar and its cross-member is worth a close look as well.
Sources: SpecCodex-Register: Kennwerte des Modells Meusel MCZA 18/75/2
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