3–7 Tonne Excavator Flail Mower – 850mm & 1050mm
Delivery within 7–10 Working Days*
The 3–7 tonne excavator flail mower steps up to heavier-duty hammer blades for thicker growth. It cuts brush, brambles and hedgerow material up to 40mm thick, with an 850mm or 1050mm head for midi excavators.
A high-torque direct drive motor spins the rotor, and the hammer blades cut and chop whatever the head passes over. The self-levelling head follows the ground, a height-adjustable roller sets the cutting height, and a pre-set flow control valve with anti-shock and anti-cavitation protection looks after the motor. On the end of an excavator arm, the flail has the reach to cut banks, ditch sides and hedges from the cab.
It's supplied with two hoses for flow and return and needs no drain line. Check your excavator's auxiliary flow against the figures below, then send us your machine and hitch details so we can confirm fitment before it's supplied.
Key Features
- Built for 3–7 tonne excavators
- 850mm or 1050mm cutting widths
- Hammer rotor that cuts material up to 40mm thick
- High-torque direct drive motor
- Self-levelling head that follows the ground
- Height-adjustable roller to set the cutting height
- Pre-set flow control valve with anti-shock and anti-cavitation protection
- Supplied with two hoses for flow and return, with no drain line needed
3–7 Tonne Flail Mower Specifications
| Specification | 850mm head | 1050mm head |
|---|---|---|
| Model / SKU | 040-FM-850 | 040-FM-1050 |
| Excavator size | 3–7 tonnes | 3–7 tonnes |
| Cutting width | 850mm | 1050mm |
| Oil flow | 30–50 l/min | 30–50 l/min |
| Maximum pressure | 200 bar | 200 bar |
| Maximum cut | 40mm | 40mm |
| Weight | 180kg | 203kg |
| Blade type | Hammer | Hammer |
| Number of blades | 12 | 16 |
| Hoses | 2 (flow and return), no drain line needed | 2 (flow and return), no drain line needed |
Which Width?
Both heads run on 30–50 l/min. The 1050mm head covers more ground with each pass and weighs 203kg, against 180kg for the 850mm head, which is easier to place in tight spots.
Where It Works Best
With hammer blades, this size handles thicker growth on midi excavators:
- Cutting brambles, brush and gorse
- Hedgerow and boundary cutting
- Clearing overgrown land before groundworks
- Verge and embankment maintenance
- Clearing growth from ditch and watercourse banks
Y-Blades or Hammer Blades?
This flail is fitted with heavier-duty hammer blades, which cut thicker brush and hedgerow material up to 40mm. The smaller 0.8–2 tonne and 1.5–3 tonne flail mowers use Y-blades, which suit grass and lighter growth up to 20mm.
Hydraulic Requirements
Both heads need 30–50 l/min of oil flow, at a maximum pressure of 200 bar. The flail is supplied with two hoses for flow and return and needs no drain line. If your machine's auxiliary flow is below the range, the rotor won't reach full speed and the cut will suffer, so check your manual or spec sheet before ordering. Don't assume couplings or installation parts are included unless they are listed on your quote.
Before You Start
A flail mower can throw stones and debris, so keep everyone well clear of the working area, and walk the ground first for wire, fencing, stones and other hidden objects. Check hedges, scrub and long grass for nesting birds. In England, hedgerows on or next to farmland can't be cut or trimmed from 1 March to 31 August unless an exception applies. Our guide on how to use an excavator flail mower covers set-up, cutting technique and the rules.
Excavator and Quick-Hitch Compatibility
Machine weight is only a starting point. Excavators in the same weight class can use different pin sizes, linkage widths, quick hitches and auxiliary hydraulics, so please send us the following when you order:
- Excavator make and model
- Machine operating weight
- Quick hitch make and model, if you run one
- Pin diameter and pin centres
- Dipper width
- Auxiliary hydraulic flow and pressure, from your manual or spec sheet
Our guide on how to measure an excavator for a new bucket shows how to take the pin measurements. If you can't measure, send us photos of your hitch and we'll help.
Delivery and Ordering
Each flail mower is confirmed to suit your machine before it's supplied. Delivery is usually within 7 to 10 working days, although factory lead times can change this. If you need it for a fixed date, contact us before ordering so we can confirm the current lead time.
3–7 Tonne Flail Mower FAQs
What can it cut?
Its hammer blades cut grass, brush and hedgerow growth up to 40mm thick. For thicker material, step up to the 5–10 tonne flail mower.
What oil flow does it need?
Both heads need 30–50 l/min of oil flow, at a maximum pressure of 200 bar. Check your excavator's auxiliary flow in its manual or spec sheet, or send us your machine details and we'll check it for you.
Does it need a drain line?
No. It comes with two hoses for flow and return and doesn't need a case drain.
Will it fit my 3–7 tonne excavator?
Machine weight is the starting point, but excavators in the same class can use different pins, linkage widths, quick hitches and hydraulic flows. Send us your machine model, hitch details and auxiliary flow, and we'll confirm fitment before the flail is supplied.
Other Sizes
For a smaller or larger machine, see the 1.5–3 tonne flail mower or the 5–10 tonne flail mower. Compare every size in our excavator flail mowers range. Got trees to clear as well? Our excavator tree shears cut stems up to 450mm.