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Cutting and milling

Diamond circular saw

Diamond circular saw on the arm of an excavator, disc cutting through the asphalt of a carriageway in a straight line, clean slot, site signing
A clean line in the asphalt:
you do not break it up, you cut it.
Synthetic image.

A diamond disc driven hydraulically, mounted on the excavator arm.
It draws a clean line in the concrete or the masonry:
you no longer demolish, you cut and you take down.

Other names for this tool: hydraulic disc saw, diamond disc on an excavator, disc cutter, demolition saw.

The essentials
Family
Cutting and milling
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 water-cooled blade cuts the wall along the line, the cutting slurry runs off and the section is lifted out. On the right, cut dry, the same cut raises a cloud of dust and the segment overheats. Computer-generated image.
the water-cooled blade cuts the wall along the line, the cutting slurry runs off and the section is lifted out cut dry, the same cut raises a cloud of dust and the segment overheats
Left: the water-cooled blade cuts the wall along the line, the cutting slurry runs off and the section is lifted out.
Right: cut dry, the same cut raises a cloud of dust and the segment overheats.
Computer-generated image.
A diamond disc turning, engaged in a concrete wall, the straight line of cut open above it, and the cooling water running down the face.
The water is not an option, it is the process:
it cools the segment and washes away the cutting slurry.
Synthetic image.

The principle is that of the asphalt disc, but the work is not the same.
Where the road disc opens the outline of a trench in a horizontal layer, the demolition saw cuts a structure:
a section of wall, a slab, a ground beam, a reservation to be opened in something that is kept.

The value is in cutting instead of breaking.
A wall sheared to a line frees a piece that is taken down, without shaking the neighbouring structure and without throwing fragments.
On a building partly kept, it is often the only method allowed.

The cutting depth is bounded by the radius of the disc, and a corner cut always overcuts on the other side. That overrun is visible and sometimes unacceptable on the structure that is kept.
When it is, it is the chain saw you should look at. See the chain saw.

02 What we check with you

On which machine?

A diamond circular saw fits all excavator classes.
It attaches to all couplers, via a mounting plate.
The recommended class for your excavator: we calculate it with you for your machine.

What the tool does

It is used for cutting.
The cutting width and depth, and its weight: we calculate them with you for your machine.

What is needed on the hydraulic side

It needs a continuous hydraulic function.
The flow and the max. pressure: we calculate them with you for your machine.

Your study sets the exact value for your machine.

Don't have these figures?
A photo of the machine is enough to start.

03 Your study

Have your machine checked.

Describe what you are cutting:
nature, thickness, reinforcement, and what stays in place around it.
Tell us whether water is available on site and whether the building is occupied.

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 — The thickness to be cut through It decides the diameter of the disc, so the size and weight of the whole.
    A cut that does not go through is of no use.
  • 02 — The disc, chosen on the material Concrete, reinforced concrete, masonry, stone:
    neither the same segmentation nor the same bond.
    A badly matched disc clogs or wears out in a few metres.
  • 03 — Dry or with watering Water cools, lengthens the life of the disc and damps down the dust.
    It requires a supply and produces slurry.
  • 04 — Keeping the plane of cut A disc constrained in its slot jams.
    The stability of the arm during the pass is part of the choice, not only the tool.
05 Check

What is checked before ordering

  • The reinforcement and the real nature of the concrete They are known from a drawing or a trial hole, and they decide the disc.
  • What is still holding after the cut Cutting a load-bearing element assumes a structural study that is not that of the tool.
  • The dust, the water and the neighbours On an occupied site, dry cutting is rarely acceptable.
    We publish neither threshold nor figure:
    the constraint is settled with the client before the job.
  • Picking up and carting away the pieces cut A piece cut out has to be held, then taken out.
    It is an item in its own right.
When the disc is not enough
On the carriageway
Demolishing another way
To go further
A question about an attachment? 01 84 16 55 49 Send my photos