The expertise.

30 years of experience.

It was 30 years ago that CLAAS presented the first combine harvester with full rubber tracks. With its superior on-road performance and ability to operate at higher speeds, this new technology overcame the disadvantages of the steel tracks which had been used until then. But this was just the first step in a whole series of developments and continuous optimisation measures. In 1994, CLAAS developed the TERRA TRAC half-track.

This new system impressed with its narrow transport widths and very smooth running characteristics. It was also possible to reduce the problem of the tracks "scrubbing" at the headland. 1997 saw the market launch of the new LEXION with TERRA TRAC. This means that CLAAS has over 30 years of experience in rubber crawler track technology and now 20 years of experience in series production of the TERRA TRAC drive systems.


The first series-production combine harvester on full rubber tracks had its public launch at the Farm Progress Show in the US.


CLAAS started TERRA TRAC trials with a MEGA combine harvester. The land wheels had pneumatic tyres.


The first TERRA TRAC crawler track series on a LEXION 450 was still attached rigidly to the axle. The land wheels were made of steel with bolted-on rubber elements to withstand the high frictional loads.


For the US market, the combine harvesters were equipped with vulcanised land wheels as well as improved tracks which brought a further increase in their durability.


The track units were now suspended on the axle by rubber blocks. This led to significantly reduced impact loads on the machine and a high level of driving comfort.


The TERRA TRAC crawler track units now had a significantly reinforced structure thanks to a one-piece cast frame in order to meet the demands of the increased weight of the machines.


The new hydropneumatic suspension provided a high level of driving comfort in the field and on the road. This crawler track system is still fitted today.

As the next logical step, the JAGUAR and the AXION are now equipped with the TERRA TRAC crawler track units which are specially optimised to meet customers' requirements.