Närko Trailers over 10 t (Class O4)

The register lists 447 versions with unladen weights from 2,300 to 25,500 kg and gross weights from 18,000 to 54,000 kg. Lengths run from 5,130 to 19,000 mm, widths from 2,450 to 3,000 mm.

With this range of gross weights, Närkö covers the whole field of heavy trailers for road trains, from medium-heavy builds to long, multi-axle combinations for bulky and heavy loads, used in Finnish and Nordic forestry and construction work behind truck tractors. The large number of parallel type codes reflects how finely axle count, frame length and chassis variant are matched to the towing vehicle and load.

On a used heavy trailer of this class, check above all the frame and welds, axles, suspension and brake system, plus wear on the coupling or the fifth-wheel kingpin, and, on tipping versions, the hydraulics and cylinders. Rust on load-bearing parts and accident damage to the frame need particularly close inspection at this weight class. Parts for axles, brakes and hydraulics are available through the truck and trailer trade.