These models have a monocoque supporting structure, which means that the tank is welded to a so-called "integral" cradle on its whole length and width.
It is the case for the Alpina2, Modulo2, Delta2, Tetrax2, Volumetra and Tetraliner.
While keeping an integrated linkage, the integrated self-supporting tubular structure is designed to reduce the total weight as much as possible. It is furthermore suited to all spreading techniques. Finally, self-supporting vehicles can be fitted with the option "tank buttresses" that reinforces it over its whole height in such a way that the rear implement weight strains are transferred on the whole vehicle.
Spreading booms up to 18 m can be hitched to them, just like the Multi-Action injectors, the Solodisc injectors up to 6 m wide and the arable injectors with up to 13 tines.
Tanks on Universal chassis
KOMFORT2, COBRA, QUADRA, X-TREM, EUROLINER, Q-BIGLINER and VACU-CARGO tankers are mounted on a universal chassis that is independent from the tank, which has many advantages:
• total transfer of the strains on the chassis;
• tank completely protected from the strains of the rear implement;
• possibility to hitch a rear implement with or without linkage;
• movement of the running gear in order to distribute the load according to the weight of the rear implement;
• standardization (because all chassis are designed on the same basis);
• compatibility with all JOSKIN spreading systems (as well as other systems, provided some adaptations are made). All linkages can be mounted since they were designed according to the existing chassis widths.
Self-supporting vehicles can be fitted at the back with a pre-equipment in order to fix a linkage in order to limit the strains on the tank.
JOSKIN hitching systems are very compact in order to limit the side and vertical strains on the whole running gear. Made up of four points, they ensure a very high stability of the rear implement while reducing the overhanging part.