Glossary › N

Naxtra: Low weight high strength steel often used to save vehicle weight.
Neck (main beams): The front section of a semi-trailer chassis where the main beams are reduced in height. This area has been increasingly important with the growth in popularity of Jumbo and high cube trailers because the depth of the neck has a critical influence in the internal height of the trailer. Improved design and materials have lead to necks which are now as thin as 40 mm this was considered impossible a few years ago.
No-hop-aggregate: A hydraulic suspension aggregate from the German manufacturer SAF. The system prevented the vehicle bouncing which often occurred with steel spring suspension. No longer manufactured.
Non slip floor: Floor covering usually using sand to provide a non-slip surface.
Non-standard containers: Swap bodies that have top as well as bottom corner castings or side doors that are not manufactured in line with ISO standard dimensions.
Tongue and groove: Timber assembly system for wooden drop-sides and floor boards which have a tongue on one edge and a groove on the other which fit into each other giving a flat finished surface.
Trailing steering (system): Trailing steering systems are used to be able to steer trailers or semi-trailers without the influence of the tractor unit. These are steered separately via the hydraulic system’s master side, which is in turn separate from the slave side and supplies the