John Deere MD 530 – MD 730

The largest model in the modernist designed and enclosed series introduced in 1964 was the MD 630 (MD = Mähdrescher = combine harvester). Later, the series was supplemented with the models MD 530 and MD 730, the latter being the first 5-rotor model. The two largest models originally had Perkins engines, although in the final phase the engine in the 630 was replaced with JD's own product. The 530 was found to be the most efficient combine harvester in its class in the Vakola group test at the time. The threshing machine width and the diameter of the threshing drum in this series have remained the same even into the 2000s.

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