Machinery World: information on the mechanization
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Anno 2020 Numero 6

June 2020

Alliance Forestar 644, a forestry tyre

A little over a year from its debut, the Forestar 664 tyre sees the launch of three new models in sizes 710/40-24.5, 710/55-28.5, 780/50-28.5, which join the classes 600/50-22.5, 710/40-22.5, 600/55-26.5, 710/45-26.5, 750/55-26.5, 800/40-26.5 already available on the market. This range expansion can therefore be considered as a confirmation of the success achieved by the Alliance tyre in the forestry sector; a sector, as we all known, characterized by difficult surfaces, heavy applications, by the presence of sharp edges (tree trunks) and by environments in which it is possible to switch suddenly from muddy soils to bare rock. Tyres for forestry applications must therefore be able to withstand very demanding workloads while ensuring maximum respect for the soil. And this is precisely the goal that ATG’s designers set for themselves when they developed the Forestar 644 range. On one hand, the width of the tread provides a reduced footprint - therefore a lower pressure on the ground - and on the other, the large central fins optimize driving stability and comfort, while the double fin angle improves both traction (the lower angle of the shoulder) and durability (the higher angle in the centre of the tyre). In short, as the manufacturer makes clear, the Forestar 644 range offers a traction comparable to that of tracks. It should also be noted that the introduction of wider fins with a high radius of connection has increased the lateral stability of the tyre, further enhancing its traction. Lastly, the exclusive tyre design strengthens its sides and offers high rigidity; this feature proves to be very effective in increasing impact protection and preventing the formation of cracks.

by Giacomo Di Paola

IFEX 27 - 29 gennaio 2021 Tokyo (Giappone)
AGRI TECH INDIA 29 - 31 gennaio 2021
Spostata al 5 - 7 agosto 2021 BIEC, Bangalore (India)