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In 1984, MF made a similar agreement with Dronningborg as it had made a little earlier with Sampo Rosenlew. The models manufactured by Dronningborg continued the size range from where those made by Sampo ended. For example, in Norway and Germany, smaller Dronningborgs were also sold with model designations MF 21 and 21H.

The MF 24-31 series included four size classes. All had 6-cylinder Perkins engines, hydrostatic transmission, hydraulic reel drive, and a cylindrical sieve as the secondary cleaning device. The closest equivalent Dronningborg models were the D4500, D7200, D7500, and D8500. The Dronningborgs had slightly more powerful Valmet engines than the Perkins engines used in MFs.

In 1988, the MF engines were made more powerful, and the larger models came equipped as standard with the Unicontrol system, which included, among other things, speed monitoring on 9 shafts and measurement of the harvested area.

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