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By trade

Quarries and rock

Blasting out, picking up, loading a material that wears everything it touches.
Here the tool does not break:
it wears, and it is the wear that makes the price of the tonne.

This trade also covers: quarrying, gravel pits, ballast pits, extraction, rock ripping, earthworks in rocky ground, stockpile handling, lorry loading.

The essentials
Common classes
20 t and above
Coupler
Often direct
Constraint no. 1
Wear
Tools per job
Two to three

The typical machine class →

01 The trade

What this trade demands of the tooling

Heavy-tonnage excavator fitted with a breaker attacking a limestone bed at the foot of a quarry face, mineral dust hanging in the air
In a quarry, the tool works continuously against the rock:
it is the wear that governs the choice, not the power alone.
Synthetic image.
The hydraulic breaker attacks the bench at the foot of the face.
Here the tool does not break, it wears: wear is what sets the price per tonne.
Synthetic video.

In a quarry, the machine does not change trade every day:
it makes the same movement, in the same material, from morning till night.
It is not the variety that costs, it is the repetition.
An ordinary earthmoving tool lasts a few weeks there, then its edge is eaten away and the body starts to go with it.

Hence a logic that is the reverse of the site's:
you do not buy a tool, you buy a wear plan.
Teeth, corner protectors, bottom, sides, picks:
each area has its rate of consumption and its lead time, and it is that lead time that decides the availability of the machine.

Here the tool does not break:
it wears, and it wears every day. The real calculation is therefore not the purchase price, it is the cost of the tonne handled:
the filling, the cycle time, and the hours of stoppage spent changing wear parts.
A set of teeth that is not available immobilises a machine as surely as a breakdown, and that is why the logistics of parts is dealt with before the order, never after.

02 The tools

The tools that matter, in the order of the job

  • 01 — Opening up and stripping A ripping tooth concentrates all the force of the machine on one point:
    it loosens fractured rock with no hydraulic line at all.
    The multi-ripper rake does the opposite — it works less deep, but it opens and gathers in the same movement.
  • 02 — Fracturing The hydraulic breaker remains the tool for volume blasted out.
    What decides the day is not the hammer, it is the point fitted on it:
    it is what touches the material, so it is what wears.
  • 03 — Cutting instead of breaking When what is left around has to be preserved, the rock chain saw separates without overcutting, and the drum cutter takes off a controlled thickness instead of breaking a volume.
    On volume, both will always be slower than percussion.
  • 04 — Opening a slot in the rock The rock chain trencher gives a regular slot as long as the rock is soft or weathered.
    In sound rock, the rate of advance collapses and the calculation changes completely:
    it is a tool for a length of work, not for a one-off.
  • 05 — Picking up and loading The rock bucket picks up here and there what has been fractured;
    the quarry bucket is a production station sized by the cycle.
    The bucket with bolt-on teeth is what allows both to last:
    as long as the teeth are in place, the edge does not rub.
  • 06 — Standing up to the abrasive, and getting value The reinforced bucket does not dig better, it lasts longer — at the price of a weight that comes off the load chart.
    The crusher bucket makes it possible to handle waste or blocks on the spot rather than carting them away.

A bucket, even a rock bucket, is not a fracturing tool. Attacking a solid mass with teeth breaks the tooth adapters, ovalises the pins and tires the dipper arm:
the bucket then costs more than what it loads.
The reasoning is taken the other way round:
what breaks upstream decides what loads downstream, and a badly controlled particle size is paid for twice, at the breaker and then at the loading.

03 Check

What is checked before fitting out

  • The real particle size after blasting Not the one aimed at:
    the one you have on the heap.
    Blocks that will not go in do not get loaded, whatever the capacity of the tool.
  • The logistics of the wear parts Lead time, stock held on site, replacement time.
    It is that trio that makes the availability of the machine, more than the robustness announced.
  • The load chart at the loading reach A reinforced tool is heavy by construction, and that weight cannot be made up for.
    The calculation is made with the bucket full, at the reach where you actually load.
  • What the operator imposes on the site Blasting method, traffic, dust, noise, conditions of working.
    Those conditions are given to you by the operator of the site, not by an attachment supplier.

Have your fleet checked.

Tell us the material and the cycle:
what you pick up, what fractured it, and how many times the movement is repeated in the day.
Above all, tell us what you consume in wear parts today:
it is the most useful piece of information you can give us.

Written study within 3 working days, complete file.

Tell us about your worksite Written study within 3 working days, complete file · no obligation

Other trades
By machine
The wear parts
By trade

The same tool is not chosen in the same way depending on who fits it, and on what is around it.

The 12 trades

Tell us what you want to do.

Your machine, your worksite, your coupler if you know it.
We tell you what fits on it — and what does not.

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