The Claas Axion, introduced in the fall of 2006, was the first new model series designed under Claas's leadership. The Axion 800 series, which replaced the earlier Axion 800, used Deere's 6.8-liter engines, said to be exactly the same as those in the JD 30 series, and featured the Gima Hexashift transmission, which, except for the software, was the same as MF's Dyna-6. A year later, CMATIC versions were introduced, equipped with ZF's stepless S-Matic transmission based on Steyr technology.

The engines had four valves per cylinder, common rail injection, variable turbocharging, and exhaust gas recirculation. Most models had an additional 35 horsepower boost in the two highest ranges of the transmission or when using the power take-off. The hydraulics featured a closed system with outputs of 110 l/min or 150 l/min. The front axles were manufactured by Dana.

Cab suspension was standard, as in previous models. The CEBIS terminal, which centralized performance data and adjustment options, was borrowed from Lexion combines and included in the base price. However, if desired, the Axion was also available with mechanically controlled hydraulics, in which case it was replaced by a much simpler CIS display. The cab noise level was promised to be 74 dB. Apparently, during the Claas era, these promises were more realistic than the smaller figures previously claimed for Renault models.

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