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The very best in rotary mulching technology has been packed into the Stubble Master 500, a premium five metre cutting width machine targeted at high output farmers and contract professionals demanding high levels of quality and performance.

The shaft driven machine benefits from Spearhead’s unique six-blade Starcut blade system as standard which; when coupled with the efficient delta wing design of the cutting deck provides a chop and spread of the highest standard.

Much of the appeal of the Stubble Master 500 is that it has been built without any compromise, mirroring many of the principles seen in the machines much larger in size in the same range.

Featuring three rotors, each with heavy duty blade holders and six robust 13 millimetre thick spring steel blades – three high lift and three flat for extra mulching, the machine is capable of leaving a flail type finish to support a more efficient harvest operation and an improved yield.

Image shows high-lift blade configuration using cutting and mulching technology.


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  • 5.0 metre cutting width
  • 120hp minimum tractor requirement
  • Heavy duty 250hp input gearbox
  • Heavy duty 111hp rotor gearboxes
  • Slip clutch protection
  • 8 large pneumatic rear wheels
  • Anti-scalp rotor protection dishes
  • 18 x heavy duty cutting blades (6 per rotor)
  • Floating wings
  • Rear lighting kit


Cutting width: 5.00m (16ft 5in)
Overall width: 5.20m (17ft 1in)
Overall length: 5.70m (18ft 9in)
Transport width: 2.80m (9ft 2in)
Transport height: 2.20m (7ft 3in)
Machine weight*: 2830kg
Gearbox rating: 250hp and 111hp
Cutting range: 0mm – 380mm (0in – 15in)
Number of rotors: 3
Number of blades: 18
Blade overlap: 80mm
Blade tip speed: 90m/sec
Wing work angle: 30° up / 7.5° down
PTO protection: Slip clutch
PTO speed: 1000rpm
Tractor power required**: 120hp

*Dependent on machine specification
**Dependent on conditions

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