Chapman FM120 towing flail topper, Hammer flails



The FM Range of ATV Flail Mowers is the perfect tool for the removal of weeds, rushes & bracken; and the general maintenance of fields, paddocks and parkland. Also ideal for cutting game trails. Heavy duty construction and Honda engines for a long working life.

FM Series Flail Mower – Centrifugal ClutchFM Series Drive SystemFM120 Working in wet conditionsFM120 Flail Mower Standard FlailsFM Flail Mower with Optional Cutter BarFM150 Flail Mower With Engine Centre Mount OptionFM150 Flail Mower with Twin Axle OptionFM120 Flail Mower Cutting ragwortFM120 FLAIL MOWER CUTTING REEDSFM120 Cutting RagwortFM120 Towed with Suffolk punch horsesFM120 Towed with Suffolk punch horsesFM120 Towed with Suffolk punch horsesFlail mower FM150 Ragwort 2FM120 Trailing Wheels cutting thick vegetationFM150 Cutting thick vegetation

The FM120 ATV Flail Mower, part of the FM Series Flail Mowers range by Chapman Machinery Ltd are designed from the outset to tackle tough mowing tasks including mowing on rough, wet & boggy ground where a heavier mounted unit could become stuck. Built to be exceptionally tough, yet have a low ground pressure for easy towing, the FM Series Flail Mower can go where other machines cannot. 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 FM120 self-powered flail topper keeps the mass low to the ground for stability, and allows cutting easily beneath trees and overhanging branches.

The FM120 ATV Flail, like all the mowers in the FM Series Flail Mower range 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. Heavy-duty ‘bx’ type drive belts last longer and are more efficient than smaller units used on competing machines.


Technical Specification
Cutting Width 1.25m
Weight 290 kg
Cutting Height 25-225mm
Rotor RPM 2400rpm
Deck Steel Thickness 5mm cover, 8mm side plates
Number of Blades 44
Engine Power 21hp Honda GX630 V Twin w/ Electric start
Tyre Size 22x11x8″
Fuel Tank Capacity 10 Litre
Belt Size 2 x BX41 Cogged Belts w/ automatic tensioning system
Rotor Balancing G6.3 Dynamic balanced

Options available
Front Break Bar – Tubular fender bar to protect wheels and feed tall material (eg. bracken, reeds) into the mower smoothly

Cutter Bar – Fixed cutter bar within the deck to increase mulching and reduce chop size, for faster cut material de-composition.

Twin Bogie Axle – Replaces standard axle assembly with rocking beam axle with two wheels (per side), for smoother travel over rough terrain. Can only be used with the wheels to the side, cannot be used with wheels trailing.

Engine Centre Mount – Engine is centrally mounted on the deck to provide 50/50 weight distribution for improved safety on steep terrain.

Forged Hammer Flails – Fitted in place of standard steel blades, the forged hammer flails are considerably heavier, harder and give a better finish when cutting tough material eg. reeds, bracken. Higher rotational mass improves mower performance when encountering heavy clumps of material.

Auto Idle – Standard cable operated throttle is replaced with electronic actuator and switch, which enables change from idle to full engine RPM at the flick of a switch. Ideal for cutting alternate areas as required (eg. cutting fire-breaks on moorland)

Call us on 01363 84424 for a price on a spec that meets your needs.

The one we have in the photos is a FM120 fitted with hardened hammer flails, this has an RRP of £4850.00 Plus Vat


Chapman Machinery


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