Krone’s Big M 400 self-propelled mower boasts 40hp more than its predecessor, the Big M 200.

Powered by the same 400hp Mercedes block as the Big X forager, it has a choice of three different conditioner versions. It’s fitted with a heavy-duty mower bed and has an automotive transmission, meaning lower revs in transport mode.

There’s a new cooling system, too, which sucks air in from the top rather than the back screen, and a reverser fan which blows any trash away every 10 minutes.

Capable of mowing more than 200 acres/day, the Big M 400 costs in the region of £250,000.

Having proven the SafeCut auto-reset cutterbar system on the Big M self-propelled mower for the past two years, Krone is now fitting all its mowers with it.

Each mower disc is connected via a roll pin which shears off there’s an obstacle, but as the sprocket revolves the stopped disc lifts up out of the way of neighbouring discs to prevent damage.

Once the roll pin has been replaced, the tripped bearing then goes back into use.