Global farm machinery manufacturer CLAAS has unveiled prototypes of its industry-leading JAGUAR forage harvesters and AXION advanced technology tractors equipped with terra trac at German agricultural event Agritechnica.
Based on the same proven crawler track technology found on LEXION combine harvesters, the JAGUAR assembly features a unique headland protection system that protects soil and grass cover during turning.
During turning, the land wheel of each track is raised, leaving the machine supported on the drive wheel and middle rollers.
As a result, the contact area and degree of soil pressure change briefly to a level comparable to that produced by 800mm diameter tyres.
Studies by Kiel University of Applied Sciences in Germany have shown that the technology reduces the undesirable shear effect to almost the same level as a wheeled machine.
Fitted with 635mm-wide tracks, JAGUAR with terra trac still retains a slim transport width of three metres and a top speed of 40km/h.
Optional 800mm-wide tracks increase the external width to 3.5m.
Another practical benefit is that the removal and installation of the corn cracker from the side of the harvester is considerably easier, as the crawler tracks are lower than tyres.
Also making its debut at Agritechnica was the AXION 900 with terra trac, billed as the first half-track tractor with full suspension.
The concept was awarded a silver medal for innovation at this year’s event.