Attachments for an excavator of more than 20 tonnes
Demolition, quarrying, recycling.
At this tonnage, the attachment is no longer a
consumable:
it is an investment that compares with the price of a whole
machine.
Other names for this class: big excavator, big digger, demolition excavator, quarry excavator, 25 t excavator, 30 tonne excavator, production excavator.
- Common coupler
- S, CW, or direct pins
- Auxiliary line
- Multiple
- Constraint no. 1
- The cost of the tool
- Strength
- Production
the tool compares with the price of a machine, and is decided on production.
The relative sizes are indicative.
you size a haulage cycle, machine and transport together.
Synthetic image.
What this class allows, and what it rules out
Nothing is technically closed to it.
An excavator of this tonnage carries the biggest
breakers, high-capacity demolition grabs, large-range screeners,
loading grapples.
What changes is the nature of the decision. At this size, an
attachment is chosen the way a machine is chosen:
on a calculation of output
per hour, a write-off period and a maintenance cost.
A mistake cannot be
made good by selling the tool to the neighbour.
It is the class where the preliminary study is worth the most — and where it
costs the least. Checking a flow, a coupler size and an operating
weight takes a few hours.
Choosing the wrong tool at this level is counted in
tens of thousands of euros.
The tools that go on this class
-
Production recycling
A screening bucket recorded covers
23 to 40 t, with screening at 25 or 45 mm depending on the
configuration.
It is the range designed for volume. - Heavy demolition Demolition grabs, crushers, shears, and the breaker of high energy.
-
Ripping and quarrying
A ripping tooth recorded goes up to
60 t.
The hydraulic cutter finds its biggest heads here. - Loading and sorting Clamshell grapple bucket recorded at 2 to 50 t, scrap grapples, skeleton bucket recorded at 1 to 50 t.
The interface follows the tonnage. An S type coupler recorded covers
1 to 90 t depending on the size, and a hydraulic coupler
4 to 60 t.
Beyond that, you often come back to direct pins — simpler,
more robust, and with no loss of height at the end of the arm.
See the couplers.
What is checked before buying
- The flow and the pressure, at working values At this tonnage the differences between machine models are considerable, and a high-capacity tool badly fed does not produce what it should. See the 7 criteria.
-
The operating weight, and the arm configuration
Standard boom, long boom, short dipper arm:
at equal load, the reach changes everything.
The calculation is made on the real configuration of the machine. -
The pin dimensions, if the tool mounts directly
Diameter, pin centres, width between ears.
They are three measurements, they are taken on the machine, and they cannot be guessed from a serial number. -
What the tool costs per hour, not only to buy
Wear parts, intervals, availability of consumables.
On a tool of this size, it is the maintenance that decides profitability.
Have your machine checked.
Give us the make, the model, the arm configuration and the coupler
system.
Above all, tell us what you expect in output:
at this tonnage,
it is the output aimed at that designates the tool, not the other way round.
Written study within 3 working days, complete file.
Tell us about your worksite Written study within 3 working days, complete file · no obligation