Special foundations rig
Driving, vibro-driving, large-diameter boring, building a diaphragm wall.
Heavy set-up, long immobilisation:
it is a site in itself.
Other names for this machine: pile driver, drop hammer, wall rig, drilling chisel.
- Category
- Covered by CACES R.482A category B2 depending on the machine
- Status
- Partial carrier
What it does
it does not share the site — it occupies it.
Driving, vibratory driving, large-diameter drilling, building a diaphragm wall.
What it does not do. Long immobilisation, heavy set-up.
It is a site in itself.
it is the pile that goes down, not the machine that digs.
Synthetic image.
bore, reinforce, concrete, in that order and without waiting.
Synthetic image.
What governs the fitting of an attachment
-
The boring tool and its diameter
Auger, chisel, bit, core barrel:
the tool follows the ground, not the other way round. - The torque and thrust available They decide what the machine goes through, and how fast it goes through it.
-
The method of support
Casing, slurry, hollow auger:
it is chosen on the nature of the soil and the presence of water. - Access and headroom The mast governs access as much as the weight of the machine does.
One model, as a reference point
The values below hold for this model only.
They are there to give an order of magnitude to anyone who has none, not to serve as a reference.
- Mass of the drop hammer
- 3,000 to 6,000 kg recommended
- Maximum pile length
- 20 m
- Operating weight
- 64 000 kg
- Engine power
- 179 kW, that is 240 hp
- Travel of the telescopic mast
- 4 000 mm
Caveat. 64 tonnes to drive 20 m piles:
the machine is chosen on the pile to be driven and on the ground, never on a maximum figure.
Source. Manufacturer's data sheet, Junttan,
recorded on 1 September 2026.
These values are those of one precise model, at one precise date. They do not describe a category:
there are no characteristics of a compact loader in general, there are those of the model you have.
They change from one year to the next and never replace the data sheet of your machine.
Have your machine checked.
Give us the exact model and the work you have in mind.
We check
the coupler, the flow, the pressure and the capacity on your machine,
and we tell you what fits on it — and what does not.
Written study within 3 working days, complete file.
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