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Maintaining green spaces

Stump grinder

Orange compact tool carrier with a stump grinder on the end of the arm, guard raised, above a ground-out stump in a lawn, along a white wall.
Fitted to a compact tool carrier, the grinder reduces the stump to chips at ground level.
The guard holds back the flying chips.
Photo:
Riggwelter, CC BY-SA 3.0, via Wikimedia Commons, resized, brand removed.

A toothed disc that attacks the stump in successive passes.
It does not pull it out:
it eats it, on the spot, down below ground level.

Other names for this tool: stump cutter, disc stump remover, stump mulcher, stump router.

The essentials
Family
Maintaining green spaces
Classes (t)
All
Coupler
All, by plate
Power source
Hydraulic, continuous function — flow and pressure: we calculate it with you for your machine

Identify your coupler →

01 Use

What it is for

On the left, the grinder reduces the stump to chips below ground level. On the right, pulled out with a claw, the stump leaves a crater and still has to be removed. Computer-generated image.
the grinder reduces the stump to chips below ground level pulled out with a claw, the stump leaves a crater and still has to be removed
Left: the grinder reduces the stump to chips below ground level.
Right: pulled out with a claw, the stump leaves a crater and still has to be removed.
What sets it apart:
it goes below ground level without ever opening it.
Computer-generated image.
Close-up of a yellow stump grinder at work, the toothed disc half buried in a bed of chips.
The toothed disc goes down into the stump and reduces it to chips below ground level.
The hole is filled back in with the chips themselves.
Photo:
Kinemsm, CC BY-SA 4.0, via Wikimedia Commons, resized, brand removed.
A toothed disc turning attacks a stump at ground level in a wood, throwing chips into the air; the disc is carried at the end of the arm.
It does not pull it out:
it eats it, on the spot, down below ground level.
Synthetic image.

The disc goes down in side passes and reduces the wood to fine chips.
What is left on the spot is a mixture of chips and soil, and ground that almost closes over by itself:
no open pit, no stump to load, no lorry to bring in.

That is what makes it suited to places where the ground cannot be opened:
a lawn, a public square, a yard, the surroundings of a building, near services or surfacing.
You work where a claw would make a crater.

The grinder and the claw do two opposite jobs, and the waste is not the same. The grinder leaves a fine product that stays on the spot;
the claw leaves a hole and a stump mixed with soil that has to be carted away.
Choose first what you want to be left afterwards. See the stump-pulling claw.

02 Key technical data

On which machine?

On an excavator from 1,5 to 35 t: a cutter from 120 to 2 100 kg.
On an excavator over 20 t: from 1 200 to 2 100 kg.
The cutter fits all quick couplers, via a mounting plate, or directly on the pins.
Some models have a universal plate, adaptable to most couplers, to be checked with you.

What the tool does

This stump grinder is used for maintaining green spaces.

What is needed on the hydraulic side

It needs a hydraulic circuit with continuous function.
On an excavator over 20 t, the recorded pressure is 350 bar.
The flow, and the pressure on smaller excavators: we calculate them with you for your machine.

Figures taken from 7 models on the market.
Your study sets the exact value for your machine.

How to read these values →

03 Your study

Have your machine checked.

Tell us how many stumps, their species and their size, and what has to be at that place afterwards.
It is that last answer that separates the grinder from the claw.

What we need to answer you
  • Your machine Its make and its tonnage.
  • The auxiliary circuit Its flow in l/min, its pressure in bar, single- or double-acting.
  • The coupler in place Its system and its class.
  • The work The use, and the material.

Without these details, the study still begins: we will ask you for them.

Send my photos

or describe your need

Book an appointment with the specialist

Or call 01 84 16 55 49 · our lines are open 7 days a week, from 7h to 22h.

Written study within 3 working days, once the file is complete.

04 Choice

What determines the choice

  • 01 — What you want to be left Ground closed over and chips, or a clean excavation ready to take something else.
    It is the question that decides, before any other.
  • 02 — The depth of attack aimed at A simple levelling and a preparation for planting do not call for the same work.
  • 03 — The stoniness around the stump A tooth that meets a stone is damaged, and the stone flies off.
    Stony ground can be recognised beforehand.
  • 04 — The access around the tree The grinder works from the side:
    it needs room around the stump, not only above it.
05 Check

What is checked before ordering

  • The number and size of the stumps It is what governs the machine before it governs the tool.
  • The services and surfacing nearby Grinding is often done on an occupied site:
    the declaration of services is made beforehand, without exception.
  • The teeth, which are a consumable Their type and how easily they are replaced weigh on the whole campaign.
  • The throwing perimeter The grinder throws chips and stones.
    On a public site, the screen and the perimeter are part of the work.
The other logic
What the machine needs
After the stump removal
To go further
A question about an attachment? 01 84 16 55 49 Send my photos