Chapmans Machinery- ATV Pro Flail Mower

Product Description


The FM PRO enters new territory in the ATV flail mower market for extreme power and reliability while maintaining better fuel efficiency versus traditional carburettor models.

Designed for the full range of topping and mowing tasks, from thick dense rushes to fine topping of parkland, the FM series Flail Mowers can tackle anything thrown at them.

  • Powerful 25hp Honda Petrol Engine
  • Electronic Fuel Injection
  • Oil Cooled
  • Heavy duty construction throughout
  • Unique double helix flail rotor
  • Large diameter tyres for smooth travel
  • Automatic belt tension system
  • Forged Hammer Flails


We use industry-leading 21hp Honda GX630 V-Twin Engines, which offer unparalleled power and performance. All machines are fitted with a heavy-duty rear roller to prevent scalping.

The compact design of the FM Series self-powered flail topper keeps the mass low to the ground for stability and allows cutting easily beneath trees and overhanging branches.


The FM Series are fitted as standard with a centrifugal clutch, allowing for safe & efficient operation from the towing machine.

The centrifugal clutch gives automatic drive engagement and disengagement, and combined with the automatic tensioning assembly reduces maintenance by compensating for belt wear and belt loading.


Our innovative rotor design incorporates a solid 40mm diameter drive shaft right through the centre of the rotor with a structural grade 90mm diameter outer tube, onto which the flail lugs are welded in a spiral pattern.

This unique design transfers cutting power more efficiently from the engine to the cutting heads, giving a cleaner cut and better performance in tough situations. Furthermore the rotor incorporates dedicated bearing guards designed to prevent string and wire damaging the bearings.


Cutting Width1.2m
Cutting Height25-225mm
Rotor RPM2400rpm
Deck Steel Thickness5mm cover, 8mm side plates
Number of Y Flails44
Engine Power21hp Honda GX630 V Twin w/ Electric start
Tyre Size22x11x8″
Fuel Tank Capacity10 Litre
Belt Size2 x BX41 Cogged Belts w/ automatic tensioning system
Rotor BalancingG6.3 Dynamic balanced

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Product Specification