Screening bucket
the material goes through, the oversize stays in the bucket.
It is that stirring that makes this family demanding on flow.
Synthetic image.
The screening bucket sorts the material in the bucket itself, on the site.
The spoil becomes a reusable material instead of a waste to be hauled away and then
bought back.
Other names for this tool: rotary bucket,
screening bucket, material screener, rotating bucket, screening and crushing bucket.
The term “rotary bucket” is common among dealers — it is the same
tool.
- Family
- Recycling and recovering
- Classes (t)
- 0.8 to 52 t
- Coupler
- All, by plate
- Power source
- Hydraulic — flow and pressure: we calculate it with you for your machine
What it is for
Right: the coarse material stays inside and is tipped separately, in a second heap.
What sets it apart:
the cut is the starting decision — everything else follows from it.
Computer-generated image.
One tool sorts on site what would otherwise have been hauled away.
Synthetic video.
A rotor or a set of shafts works the material inside the bucket.
The fine
goes through and falls, the coarse stays and is tipped separately.
You get two distinct
heaps with no intermediate transport, no fixed screen and no loader.
The common use is the reuse of trench spoil:
the fine soil goes back
as backfill, the stones go to the bottom of the trench.
On an urban site where
carting away costs a lot and where space is short, the calculation is soon made.
Some models crush as well as screen:
they handle compost, topsoil
and clay spoil, with an adjustable particle size.
Others
use star screening, better suited to sticky materials.
It is the family that is hungriest for flow. The rotor turns
continuously, unlike a bucket movement, which is occasional.
An undersized
machine does not refuse to work — it turns slowly and screens
badly.
That is the trap:
the tool works, but it does not keep up the rate
announced.
An example that explains everything
On a mini-excavator of 2.5 to 3.5 t, a screening and crushing bucket recorded calls for
25 l/min at 200 bar.
A breaker of that same class
works at around 15 to 25 l/min under 90 to 120 bar.
The same machine, the same coupler, similar flows — and a pressure twice as
high.
It is the demonstration that the tonnage alone decides nothing.
On which machine?
They exist for machines from 1 to 52 t.
For example, on a 10 to 20 t excavator, the weight is generally from 690 to 1 980 kg.
It fits all couplers via a mounting plate, and comes in a version for loaders and telehandlers.
What the tool does
Its stars turn continuously: it screens without cutting or pinching.
For example, on a 10 to 20 t excavator: capacity from 500 to 2 000 l, width from 1 000 to 1 550 mm.
Depending on the model: wear-resistant steel, interchangeable screens to suit the material, interchangeable or optional teeth, automatic lubrication, to be checked with you.
What is needed on the hydraulic side
It needs an auxiliary hydraulic circuit.
It generally needs from 20 to 180 l/min, at a pressure from 120 to 230 bar, depending on the size of the machine.
Figures taken from 35 models on the market.
Your study sets the exact value for your machine.
Have your machine checked.
Give us your excavator model, the material to be screened and the particle size
aimed at.
We cost the whole:
tool, coupler, workshop, transport.
- 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.
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.
What determines the choice
-
01 — The cut particle size\
It is the starting decision:
at what size do you separate? Models recorded\ screen at 25 or 45 mm.
It is chosen on the use of the fine material, not on\ the look of the heap. -
02 — The flow available, continuously
A rotor calls for a sustained flow, not a peak.
It is that parameter that decides the real output, and not the capacity of the bucket. -
03 — The nature of the material
Dry soil, sticky soil, clay spoil, demolition rubble:
the technology differs.
A toothed rotor does not handle clay the way star screening does. -
04 — The loaded weight, bucket full
Far above the empty weight.
It is the loaded weight that counts for stability and reach, not the catalogue one.
| Range | Carrier class | Detail recorded |
|---|---|---|
| Mini-excavators | 1.5 to 8 t | Range dedicated to mini-excavators |
| Mini-excavator and loader | 3 to 9 t | — not recorded |
| Intermediate class | 17 to 24 t | Screening at 25 or 45 mm |
| Heavy class | 23 to 40 t | Screening at 25 or 45 mm |
What is checked before ordering
On this tool more than on any other, an incomplete quotation is discovered at delivery.
-
A screening bucket is not bought on its own
The whole consists of the tool, the coupler in the format of your machine, some
assembly time in the workshop and the transport.
A quotation that announces only the tool is incomplete. - The continuous flow, measured on the machine And not the peak flow announced in the excavator's catalogue.
-
The loaded weight in relation to the reach
Bucket full, at the end of the arm:
that is where the stability is decided. -
The workshop's capacity to prepare the whole within the time
The assembly is not instantaneous.
It is planned together with the date the machine becomes available. -
The size for transport
These tools are heavy and bulky.
Their carriage is costed separately.
The item most often forgotten in a budget is the workshop.
Assembly, welding the mounting plate, fitting the coupler:
it is real work and
it can be costed.
It appears in the study rather than turning up at the end of the process.
- Family
- Recycling and recovering
- Trade
- Railways
- Compatibility
- The seven criteria in detail →