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With high output in mind the Stubble Master 910 is designed to deliver superb performance in some of the largest arable applications in world farming.

Packed with a massive 9.1 metres of cutting width the machine can also be fitted with the standard Multicut blade to appeal to further applications within aviation and the military.

The Stubble Master 910 builds on the features packed into the smaller 500 and 730 models with a monocoque deck and HD6 cutting system as standard.

Cutting performance is boosted by complimentary deck baffling to ensure a fine mulch and even spread in grassland and cereal crops.

With an extended cutting width the machine still folds down to a compact transport width with an innovative folding mechanism ensuring that the wing tips fold over completely to reduce the transport height within road legal limits.

Spearhead’s unique six-blade Starcut blade system


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Stubble Master 910 Rotary Mower

  • 9.1 metre cutting width
  • 190hp minimum tractor requirement
  • Heavy duty 250hp input gearbox
  • Heavy duty 116hp rotor gearboxes
  • Slip clutch protection
  • 8 large pneumatic rear wheels
  • Anti-scalp rotor protection dishes
  • 30 x heavy duty cutting blades (6 per rotor)
  • Floating wings
  • Rear lighting kit


Machine weight*: 6750kg / 14882lbs
Hitch: Multi-positional drawbar
Cutting width: 9.09m (29ft 9in)
working machine width: 9.32m (30ft 7in)
Transport machine width: 3.00m (9ft 10in)
Maximum working length: 6.42m (21ft 1in)
Deck height**: 0.26m (10in)
Transport height: 3.17m (12ft 4in)
Cutting height: 25mm – 400mm (1ft 16in)
Cutting capacity: 100mm (4in)
Recommended tractor HP: 190hp / 142kW
Wing work angle: 15° up / 5° down
Gearbox [splitter]: Cast iron housing
Gearbox [rotor gearboxes (x5)]: Cast iron housing
Input shaft: 1″ 3/4 Z20 SFT tractor end
Gearbox lubricant: EP80-90W or GL-4 / GL-5 oil
Gearbox oil capacity [splitter gearbox]: 2.7 litres / 4.7 pints
Gearbox oil capacity [centre & inner rotor gearboxes (x3)]: 3.5 litres / 6.2 pints
Gearbox oil capacity [outer rotor gearboxes (x4)]: 2.1 litres / 3.7 pints
Deck construction: All welded construction
Deck material thickness: 3mm (1/8″)
Side skirt material thickness: 6mm (1/4″)
Skid construction: Replaceable bolt on skid shoes
Anti-scalp dish: 5mm (3/16″) round pan with blade holder bar
Blades standard (x15) : 12mm (1/2″) 30 Carbon Boron hardened
and tempered. Free swinging high lift – low friction. Handed.
Blades Starcut (x15) : 12mm (1/2″) 312mm (1/2″) 30 Carbon Boron hardened
and tempered. Free swinging high lift – low friction. Non-handed.
Blade bolts: M24 C/W shank grade 8.8
Blade tip speed: 88mps / 17322fpm
Driveline: ASAE Category 10
Driveline protection: 2/4-way slip clutches on rotor gearboxes.
Overrun on input shaft
Tailwheel mount assemblies: Tubular welded walking axles
Tailwheels (x8): 7.00-12 pneumatic tyre with steel hub
Front guard: Single chain guards on each deck
Rear guard: Single chain guards on each deck

* With front and rear single chain guards
** Underside of deck to skid

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