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À LA PELLE, the specialist in hydraulic excavator attachments Who is Arnaud Dufour
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The auxiliary hydraulic line is the first filter. Many mini-excavators are not fitted with one:
without it, no breaker, no grab, no auger, no screening bucket.
It is spotted by the presence of hoses at the end of the dipper arm.

The indication given here applies to the current version of the tool.
Some mechanical versions are worked by the bucket ram and need no auxiliary line — that is one of the points checked in the study.

A bucket, a grab, a breaker, a grapple: the same arm carries them all.
You choose by the job to be done, not by the name of the tool.
Synthetic video.
01 Digging and ditching

Moving soil, opening and finishing a ditch.

The widest and most accessible family:
most of these tools need no hydraulics and fit any machine whose coupler is known.

Earthmoving bucket

The most common attachment, and the one whose choice is most often made by default.
It needs no hydraulics:
the only question is that of the interface and the width.

Auxiliary line
Not required

Ditching bucket

Wide, smooth and toothless, the ditching bucket does not dig:
it profiles.
It is the tool for finishing, for the even bank and the clean ditch.

Auxiliary line
—

Trapezoidal bucket

The shape of the bucket is the shape of the ditch.
One pass is enough to give the section, both banks and the bottom — with no reworking, no levelling, no finishing.

Auxiliary line
Not required

Skeleton bucket

A bucket whose floor is open:
the fine soil passes between the bars, the stones stay inside.
The sorting is done while loading, with no extra machine.

Auxiliary line
Not required

Ripper teeth and rippers

A single tooth concentrates the whole force of the machine on one point.
It loosens cracked rock, pulls out stumps and opens compact ground — with no hydraulic line at all.

Auxiliary line
Not required

Grading blades and rakes

Spreading, levelling, gathering, building a heap back up.
Passive tools, with no hydraulics at all, that save hours on finishing a platform.

Auxiliary line
Not required

Reinforced bucket

The same work as an earthmoving bucket, in ground that wears.
It does not dig better:
it lasts longer.

Auxiliary line
Not required

Rock bucket

Closed profile, reinforced edge, teeth made to penetrate.
It loads what has already been broken up — it does not break it up.

Auxiliary line
Not required

Grading bucket

Wide, smooth, toothless.
It does not dig:
it grades, it smooths, it finishes.

Auxiliary line
Not required, except the tilting version

Tilting ditching bucket

It tilts hydraulically, so the slope is set at the tool.
The machine no longer moves to correct half a degree.

Auxiliary line
Required, one double-acting circuit

Narrow trenching bucket

A narrow trench means less spoil to take out and less backfill to bring back.
Over a length of it, the difference becomes a line on the quotation.

Auxiliary line
Not required

Bucket with bolt-on teeth

The tooth wears, the tooth is replaced.
The body of the bucket, for its part, must never touch the ground.

Auxiliary line
Not required

Smooth toothless bucket

A working bucket with the teeth taken off.
It loads and it picks up again:
but it leaves no furrow behind it.

Auxiliary line
Not required

Tilting bucket

A ram tilts the body of the bucket.
The slope is followed at the tool:
the tracks no longer move to catch up half a degree.

Auxiliary line
Required, one double-acting circuit

High-capacity bucket

More material per cycle, so fewer cycles.
The gain exists only if the product is light:
otherwise you fill it half way.

Auxiliary line
Not required

Weed-cutting bucket

A slotted bucket, for cleaning out under water.
The water drains away as it comes up:
what remains is what you wanted to take out.

Auxiliary line
Not required

Stripping bucket

Wide, toothless, and capacious all the same.
It takes off a layer of constant thickness over a whole area — and it moves the volume of it.

Auxiliary line
Not required

4-in-1 bucket

The bottom opens like a jaw.
A single tool to dig, scrape, grip and meter out:
provided you accept that none of the four is done at its best.

Auxiliary line
Required, one double-acting circuit

Bucket with an opening bottom

It empties from below.
The bucket no longer needs to turn over to release its contents:
it lays them where they are needed, and only as much as is needed.

Auxiliary line
Required, one double-acting circuit

Quarry bucket

A production tool, not a site tool.
It is sized by the cycle:
so many lorries in the day, every day, in the same material.

Auxiliary line
Not required

Forestry bucket

Stumps, roots, stones, soil mixed with wood.
Forest ground does not wear a bucket the way fill does:
it punctures it.

Auxiliary line
Not required

Planting bucket

Narrow, deep, often V-shaped or half-moon.
It opens a planting pit:
not a cylindrical hole, a pit.

Auxiliary line
Not required

Lightweight aluminium bucket

Lightening the bucket increases what the machine can carry.
That gain is paid for elsewhere:
on wear, and on repair.

Auxiliary line
Not required

Multi-ripper rake

Several ripper teeth mounted as a rake.
It opens the ground and it gathers:
decompaction and clearing in the same movement.

Auxiliary line
Not required

Grading beam

A screed, drawn at the end of the dipper arm.
It pushes no material:
it finishes a layer already graded, over its whole width, in a single pass.

Auxiliary line
Not required

The 25 tools in this family, as a list →

02 Coupling and adapting

Making the tool hold at the end of the arm.

The family that governs all the others:
it is the interface that decides what you will be able to fit tomorrow, and in how much time.
No coupler type is an obstacle — it is the tool that adapts to yours.

Mechanical quick coupler

The locking is manual:
the driver gets down, puts it in place, locks it.
It is the first step between knocking out pins and a tool carrier.

Auxiliary line
Not required

Hydraulic quick coupler

The locking is controlled from the cab.
Changing tools stops being an operation and becomes an everyday movement.

Auxiliary line
Dedicated control line

Fully automatic coupler

The hydraulic connection is made at the same time as the locking.
The driver changes a breaker for a bucket without getting down or connecting a hose.

Auxiliary line
Required, with a dedicated control

Symmetrical type S coupler

The symmetrical standard of Swedish origin, often called “Volvo type”.
Sizes S30 to S90:
the number follows the class of the machine.

Auxiliary line
Depending on the version, mechanical or hydraulic

Coupler taking the original pins

It grips the tool's pins instead of requiring a mounting plate.
That is what makes it possible to keep in service tools that were never designed for a coupler.

Auxiliary line
Depending on the version

Tilting coupler

It gives the tool sideways tilt, but not rotation.
It is half of a tiltrotator — and often the half that is used most.

Auxiliary line
Required, one double-acting circuit

Mini-excavator quick coupler

The same logic as on a large machine, with two tight constraints:
the weight added, and the hydraulics available.

Auxiliary line
Depending on the version

Lehnhoff system

One of the systems met with regularly, alongside the S and CW types.
It is dealt with exactly like the others:
through the mounting plate.

Auxiliary line
Depending on the version

OilQuick system

A fully automatic coupler:
the hydraulic connection is made with the locking.
The driver no longer gets down, even for a hydraulic tool.

Auxiliary line
Required, with a dedicated control

Klac system

A French system, very present on the mini-excavator market.
Modules identified by a letter, C to F and beyond.

Auxiliary line
Depending on the module, mechanical or hydraulic

Morin system

A French system with play take-up, modules M0 to M9.
Common in the hire trade, and recognisable in that it compensates for wear instead of suffering it.

Auxiliary line
Depending on the module

CW type coupler

A Verachtert designation, very widespread in Europe.
Sizes CW05 to CW70:
as for the S type, the number follows the class of the machine.

Auxiliary line
Depending on the version, mechanical or hydraulic

Liebherr system

A manufacturer's coupler, fitted as original equipment on its machines.
It is read off at the end of the dipper arm, never from a catalogue.

Auxiliary line
Depending on the version, mechanical or hydraulic

Martin system

Met with on the French market, above all in the small classes.
It is read off on the machine before buying the tool.

Auxiliary line
Depending on the version, mechanical or hydraulic

MBI system

It is met with above all under demolition tools.
The condition of the locks matters there as much as the geometry.

Auxiliary line
Depending on the version, mechanical or hydraulic

Direct pin-on mounting

The tool mounts directly on the dipper arm pins.
No intermediate coupler:
cheaper, more rigid, and slower to change.

Auxiliary line
Not required

Hydraulic rotator

Continuous rotation, without the tilt.
It is what is found under a grapple or a sorting grab, where orientation matters more than slope.

Auxiliary line
Required, one double-acting circuit

Tiltrotator

It is inserted between the coupler and the tool and gives it two freedoms the machine does not have:
sideways tilt, and continuous rotation through 360°.

Auxiliary line
Required, several circuits

Mini-excavator tiltrotator

The same function as on a large machine.
But on a mini-excavator, what it adds at the end of the arm is taken directly off the useful reach.

Auxiliary line
Required, several circuits

Weld-on mounting plate

It is the part that brings a tool to the format of your coupler.
It is the reason why you do not have to change coupler:
it is the tool that adapts.

Auxiliary line
Not required

Bolt-on mounting plate

The same function as a welded mounting plate, without a welding set and without any permanent modification.
It can be taken off, which is sometimes the whole question.

Auxiliary line
Not required

Adapter between two systems

It allows a tool of one standard to be fitted on a coupler of another.
It is the way of keeping going when you inherit a mixed fleet.

Auxiliary line
Not required

Coupler conversion kit

The set of parts that moves a fleet from one standard to another.
It is not a tool purchase:
it is a fleet decision.

Auxiliary line
Depending on the technology aimed at

Auxiliary hydraulic line

It is the first question, even before the flow.
Without an auxiliary line:
no breaker, no grab, no auger, no screening bucket.

Auxiliary line
It is the line itself

Coupler safety check valve

It prevents the coupler from opening if a line lets go.
It is what stands between the tool and the ground on the day something breaks.

Auxiliary line
On the control line

Lifting eyes

The hitching point provided, calculated and marked for slinging a load.
Lifting with an excavator is regulated:
it is not a diverted use of the bucket.

Auxiliary line
Not required

Centralised greasing

A pump distributes grease to the joints at regular intervals.
What changes is not the quality of the greasing:
it is the fact that it happens.

Auxiliary line
Not required

The 27 tools in this family, as a list →

03 Demolishing and breaking

Breaking rock, concrete and scrap.

The family that demands most of the machine:
all these tools need an auxiliary line, and the flow matters there as much as the tonnage.
This is where the matching is checked line by line.

Hydraulic breaker

The hydraulic hammer breaks rock, concrete and asphalt by percussion.
It is the most requested attachment, and the one where the match with the machine is checked most closely.

Auxiliary line
Required

Concrete crusher

Two jaws squeeze the concrete until it bursts, and leave the reinforcement bare.
Without a blow, without vibration:
the noise and the shaking disappear with the percussion.

Auxiliary line
Required

Hydraulic shear

It cuts steel, it does not crush it.
Beam, plate, cable, section:
the shear cuts cleanly what a demolition grab would only twist.

Auxiliary line
Required

Demolition grabs

The grab demolishes by squeezing, with no percussion and no vibration.
It separates the concrete from its reinforcement as it goes, which turns demolition into a sorting operation.

Auxiliary line
Required

Mini-excavator breaker

The same principle as on a large machine, on a machine that has almost no margin.
The hydraulic line decides first:
without it, there is nothing to discuss.

Auxiliary line
Required

Silenced hydraulic breaker

A casing encloses the body of the hammer.
It acts on the noise the hammer itself makes:
not on that of the material breaking.

Auxiliary line
Required

Breaker point and chisel

It is the part that touches the material, so the part that wears.
The profile is chosen on what is being broken;
the service life is decided by the maintenance.

Auxiliary line
Not required — wear part

Multi-processor

A body, a ram, a rotation — and jaws that are changed.
It is the carrier tool:
it is the jaws that decide the work.

Auxiliary line
Required, two circuits

Scrap shear

The name designates a use more than a separate technology:
cutting metal already on the ground, and bringing it down to the length that fits in a skip.

Auxiliary line
Required

Crocodile shear

A jaw hinged at one end, which opens like a mouth.
The name comes from the shape:
it does not designate a separate technical family.

Auxiliary line
Required

Concrete pulveriser

It does not bring the structure down:
it picks up on the ground what has fallen, reduces the concrete and leaves the bars bare.

Auxiliary line
Required

Interchangeable jaws

These are not tools:
they are the sets that a multiprocessor body takes.
They decide the material that can be handled.

Auxiliary line
Not required — they fit on the carrier tool

Demolition ram

It does not strike, it does not squeeze:
it pushes.
The force comes from the arm and the ram, not from a beating piston.

Auxiliary line
Depending on the version

Rock-armour grab

It takes natural blocks, irregular, heavy.
Laying rock armour is not loading a heap:
each block is placed.

Auxiliary line
Required

The 14 tools in this family, as a list →

04 Sorting and gripping

Gripping, sorting, laying.

The excavator becomes a handling machine.
A few of these tools work without any hydraulics:
that is often the way in for a small machine on this kind of work.

Hydraulic sorting grab

The sorting grab handles the gripping and moving of materials on demolition and recycling sites.
It fits on the dipper arm of a tracked excavator as well as a wheeled one.

Auxiliary line
Required

Scrap and timber grapples

Several tines meet at the centre and close around the load.
Where a grab squeezes between two jaws, the grapple wraps around — that is what lets it pick up loose material.

Auxiliary line
Required

Clamshell bucket

Two shells that close vertically.
It is the tool for what has to be taken from above:
where a bucket cannot tip, it can go down.

Auxiliary line
Required

Hydraulic thumb

An articulated finger, opposite the bucket.
What the machine could only push, it now grips — and the bucket it already has becomes a hand.

Auxiliary line
Depending on the version

Concrete skip

It is not mounted on the coupler:
it is suspended.
That is not a detail of fitting — it is what tips the operation into another set of rules.

Auxiliary line
Not required

Orange peel grab

Several shells hinged about the same axis, closing into a sphere.
What is taken does not come back out:
that is the whole difference.

Auxiliary line
Required, two circuits (opening and rotation)

Multi-tine grapple

Two jaws fitted with tines that interlock.
What is bulky is held:
what is fine passes between the tines, and that is intended.

Auxiliary line
Required, two circuits (opening and rotation)

Four-tine multi-purpose grab

Four tines closing onto a counter-jaw.
It is not a grapple:
it is a vice, and it holds what is flat, long or on its own.

Auxiliary line
Required, two circuits (opening and rotation)

Timber grapple

Two curved jaws, made for the shape of timber.
It takes an armful, lifts it and lays it down:
it cuts nothing.

Auxiliary line
Required, two circuits (opening and rotation)

Log grab

It grips the piece, not the armful.
A log held firmly is laid where you want it:
that is all that is asked of it.

Auxiliary line
Required, two circuits (opening and rotation)

Block grab

It takes the block by the sides.
No sling to pass round, so nobody to send into contact with it:
that is the real argument.

Auxiliary line
Required, two circuits (opening and rotation)

Rail grab

It grips the rail and holds it.
The tool is the simple part of the problem:
the rest is access to the track.

Auxiliary line
Required, two circuits (opening and rotation)

Multi-sleeper lifting beam

Several sleepers taken together, laid down in line.
It is not an earthmoving tool:
it is a lifting accessory.

Auxiliary line
Required, one double-acting circuit

Multi-purpose loader bucket

A rounded bucket, a grab, side walls that can be removed.
It takes silage, manure and long materials.

Hitch
Loader or telehandler

The 16 tools in this family, as a list →

05 Recycling and recovering

Treating the material on site rather than carting it away.

These tools work the material in the bucket itself, and are hungry for flow:
it is the family where an undersized machine shows immediately.

Crusher bucket

It loads rubble and out comes aggregate.
The material does not leave the site:
it changes state on the spot, in the bucket.

Auxiliary line
Required

Screening bucket

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.

Auxiliary line
Required

Star screening bucket

Shafts fitted with rubber stars turn in opposite directions.
Where a grid clogs, the stars clean themselves — it is the tool for wet soil.

Auxiliary line
Required

Mixing bucket

The mixing bucket makes the concrete or the mortar in the bucket, at the point of use.
It answers three situations:
difficult access, small volumes, and a need spread over the day.

Auxiliary line
Required

Rotary screening bucket

A drum that turns, and material that breaks up as it turns.
The fines pass through the grid:
the oversize stays inside and is emptied out at the end of the cycle.

Auxiliary line
Required, one double-acting circuit

Screening and crushing bucket

It does not merely separate:
it reduces, then it grades.
One pass instead of two, but hydraulics under markedly more strain.

Auxiliary line
Required, one double-acting circuit

Hydraulic magnet

It picks up metal without gripping it.
The problem is not the hitching:
it is finding, on the machine, what will feed it.

Auxiliary line
Required, plus a supply of current on board

Grid bucket

A bucket whose bottom lets the fines through.
No motor, no line:
the separation is done by the movement of the arm.

Auxiliary line
Not required

The 8 tools in this family, as a list →

06 Drilling and compacting

Boring a regular hole, closing a trench again.

Repetitive work where the machine replaces a gang:
the regularity of the result matters more than raw power.

Hydraulic auger

The auger bores regular holes for posts, fences, planting or light foundations.
Over a series of holes, it replaces a gang.

Auxiliary line
Required

Vibratory pile driver

It does not strike, it vibrates.
The ground fluidises around the pile, which goes down on its own — and comes back up the same way when it has to be pulled out.

Auxiliary line
Required

Vibrating plate and compaction wheel

Compacting the bottom of an excavation without sending anyone down into it.
With these tools, the first gain is not a gain in time:
it is a gain in safety.

Auxiliary line
—

Directional drilling rig

Taking a service under a road, a driveway or a wall without opening them.
You go in on one side, you come out on the other, and between the two nothing has moved.

Auxiliary line
Required

Screw splitter

A threaded cone that screws into the log and opens it by forcing the fibres apart.
No ram, no travel to wait for:
the wood opens as the screw goes down.

Auxiliary line
Required

Auger flight

It is the part that works, so the part that wears.
It is chosen on the ground being drilled, not on the machine:
the auger motor, for its part, does not change.

Auxiliary line
Carried by the auger

Sheet-pile vibratory driver

The principle is that of the vibratory pile driver:
no blow, a vibration that makes the friction of the soil collapse.
What changes here is what the clamp grips — a sheet-pile section, not a stake.

Auxiliary line
Required

Driving hammer

It strikes.
Where the vibratory driver fluidises the soil, it drives by repeated blows:
that is what makes it effective in compact or stony ground, where vibration refuses.

Auxiliary line
Required

Compaction wheel

No moving part, no hydraulics, no circuit to maintain.
It compacts by rolling, through the weight of the machine alone:
it is the simplest compaction tool that fits on an excavator.

Auxiliary line
Not required

Breaker-mounted compactor

A compaction plate fitted in the nose of the hammer, in place of the point.
The percussion of the breaker becomes the source of the tamping:
you compact with the tool you already have.

Auxiliary line
That of the breaker

Arm-mounted drilling module

A mast and a drilling head fitted at the end of the dipper arm.
The excavator does the work of a drilling rig where you would not bring one:
a bank, a narrow platform, a short job.

Auxiliary line
Required, often beyond one circuit

Auger for tractors and loaders

An auger that turns in the ground, on the tractor or the loader.
It drills the hole for the post or the stake.

Hitch
Tractor, loader or telehandler

The 12 tools in this family, as a list →

07 Cutting and milling

Cutting in cleanly rather than tearing out.

Cutting before opening changes what will have to be done again afterwards:
asphalt torn out with a bucket lifts at its edges.
These tools all demand flow, and they produce dust and noise — two site constraints before being two machine constraints.

Hydraulic cutter

A drum fitted with picks turns at high speed and rasps the material instead of striking it.
You take off what you want, to the thickness you want, without shaking what remains around it.

Auxiliary line
Required

Drum cutter

Two drums bristling with picks, mounted across the tool.
They rasp the material instead of striking it:
you take off what you want, to the thickness you want, and the rest does not move.

Auxiliary line
Required, continuous function

Vertical drum cutter

The same principle as the drum cutter, another geometry:
the axis of the rollers is in line with the tool, and the cutter goes down into the material instead of planing it.
It opens a slot where a transverse drum will not fit.

Auxiliary line
Required, continuous function

Asphalt planer

The same pick drum, applied to a road surface.
It takes off a thickness of asphalt and leaves a regular base:
it is the tool for the patches that a road planer cannot reach.

Auxiliary line
Required, continuous function

Rock chain saw

A chain fitted with cutting elements turns around a flat bar.
It plunges into the material instead of going round it:
the depth no longer depends on the radius of a disc.

Auxiliary line
Required, continuous function

Diamond circular saw

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.

Auxiliary line
Required, continuous function

Chain trencher

Let us say it plainly:
the chain trencher and the trencher are the same tool.
The name stresses the cutting part, the toothed chain that turns around a plunging boom.

Auxiliary line
Required, continuous function

Rock chain trencher

The same architecture as the chain trencher:
a plunging boom, a chain, a slot with vertical walls.
What changes is the equipment of the chain, made to attack ground that soil teeth will not go through.

Auxiliary line
Required, continuous function

The 8 tools in this family, as a list →

08 Handling and lifting

Carrying, laying and lifting what cannot be taken with a bucket.

The excavator serves here as a lifting appliance, and lifting has its own rules:
a hitching point calculated and marked, a known maximum load, safety devices.
It is the family where the tool is the simplest part of the problem.

Pallet forks and lifting hook

Two simple tools, without hydraulics, that turn the excavator into a handling machine.
And two tools where the regulations matter more than the technique.

Auxiliary line
Not required

Lifting hook

A slinging point provided, marked, fitted with a safety catch.
Lifting with an excavator is not forbidden:
it is regulated, and it assumes a part made for it.

Auxiliary line
Not required

Lifting jib

A jib that takes the place of the bucket and carries the hook further out.
What it gains in reach:
it loses in permissible load.

Auxiliary line
Not required

Pipe clamp

It grips the pipe instead of slinging it.
The hold is firm and can be turned:
the joint is made with nobody under the load.

Auxiliary line
Required, one double-acting circuit

Pipe layer

It lowers the pipe into the trench, presents it, then releases it.
What it avoids is simple to name:
somebody at the bottom, under a suspended load.

Auxiliary line
Depending on the version, mechanical or hydraulic

Hydraulic winch

It pulls by cable what cannot be carried.
Its usual carrier is most often another machine:
on an excavator, the use is checked case by case.

Auxiliary line
Required, with a dedicated control

Tipping handling skip

It does not dig:
it carries, then it empties where it is told.
It is a container, not an earthmoving tool.

Auxiliary line
Depending on the version, mechanical or hydraulic

Load cell and load limiter

The load cell weighs:
it gives information.
The limiter prevents:
it acts.
Confusing the two is the most frequent mistake on this subject.

Auxiliary line
Depending on the device

Pallet box rotator

Two forks on a slewing ring.
The box turns and empties without being handled by hand.

Hitch
Loader

Big bag filling bucket

A bucket with a discharge gate.
It meters bulk material into the bag, without tipping.

Hitch
Loader

Poultry crate fork

Two long tines, at a fixed spacing.
The stack of crates is picked up whole.

Hitch
Loader

Bale clamp

Two arms that close by means of a ram.
The bale is gripped from the sides, the film stays intact.

Hitch
Loader or telehandler

Bale transport and bale spikes

Spikes that pierce, or tubes that carry.
The bale is loaded and stacked, in front of or behind the tractor.

Hitch
Tractor or loader

Farm loader bucket

A bucket cut out for the loader.
It is chosen with the material, from grain to stone.

Hitch
Loader or telehandler

Silage and unloading fork

Long tines, an arm or a blade.
It pushes the grass up onto the silo, then takes up the silage and cuts the face clean.

Hitch
Loader, telehandler or tractor

Bale unroller

A round bale that turns or moves forward.
The forage settles in a strip along the trough, without a fork.

Hitch
Tractor, loader or telehandler

The 17 tools in this family, as a list →

09 Maintaining green spaces

Clearing scrub, mulching, felling.

Vegetation work from the machine, with nobody working on the ground.
The flow required is high and often continuous, unlike earthmoving tools.

Rotary mulcher and flail mower

The rotary mulcher reduces the vegetation on the spot and leaves the material on the ground.
No collecting, no hauling away — that is what makes it pay on long stretches.

Auxiliary line
Required

Circular-saw hedge trimmer

Several circular saws in line on a bar.
The saw cutter trims a whole face in a single pass, and it trims it cleanly — where a mulcher would tear.

Auxiliary line
Required

Circular pruning saw

The saw cuts branches and trunks at a distance and at height, from the machine.
No platform, no climber, no work on the ground under the branch to be cut.

Auxiliary line
Required

Tree shear and felling head

It cuts and it holds.
The tree does not fall:
it stays gripped in the tool, and the operator sets it down where they decided.
It is the holding, more than the cutting, that makes the value of this family.

Auxiliary line
Required

Forestry rake

Spaced tines that hold back stumps and let the soil through.
The whole tool lies in that gap:
you take away the wood, you keep the soil.

Auxiliary line
Not required

Forestry mulching head

A heavy rotor, cutting tools, and wood that becomes chip.
What is mulched stays on the ground:
there is no windrow, no lorry, no tip.

Auxiliary line
Required, continuous function

Disc brush cutter

Armed discs that turn, and a stem cut through at one stroke.
It is not mulching:
it is a cut, and the difference shows in the regrowth.

Auxiliary line
Required, continuous function

Arm-mounted flail mower

An articulated arm that carries a mulching head and walks it along a verge.
Its usual carrier is not an excavator:
it is a tractor.

Auxiliary line
Required, continuous function

Stump grinder

A toothed disc that attacks the stump in successive passes.
It does not pull it out:
it eats it, on the spot, down below ground level.

Auxiliary line
Required, continuous function

Stump grubbing claw

Long tines, passed under the stump, and the whole force of the arm behind them.
It wears nothing away:
it pulls out, and it brings the whole stump up.

Auxiliary line
Not required

Log splitter

A wedge, a ram, and a log that opens.
The point is not to split harder:
it is to split where the wood has fallen, without carrying it.

Auxiliary line
Required, one double-acting circuit

Pruning bar

Cutting at height without a platform and without a climber, from the arm of the machine.
The name covers several tools:
it is the work aimed at that separates them.

Auxiliary line
Required, continuous function

Weed cutter

A cutter bar passed under the water, in a ditch or a pond.
It cuts the aquatic vegetation:
it does not take it out.

Auxiliary line
Required, continuous function

Branch chipper for tractors

A rotor hitched to the rear of the tractor.
It turns branches and twigs into chips, on the spot.

Hitch
Tractor

Watering arm for tractors

An articulated hydraulic arm, hitched to the tractor.
It carries water above the plants, the tank stays separate.

Hitch
Tractor

Firewood strapping cradle

A cradle carried on the loader.
The logs are strapped in it, then the bundle leaves in a single lift.

Hitch
Loader

Hammer flail mulcher for tractors

A horizontal rotor fitted with hammers or knives.
It shreds grass, brush and stalks, and leaves the mulch on the spot.

Hitch
Tractor

The 18 tools in this family, as a list →

10 Roads and winter

Maintaining the road, in winter as in summer.

A family of its own, with its own cycles:
local authorities and roads-and-utilities firms buy on an annual budget, and winter equipment is decided before the autumn.
This is linear work, not one-off sites.

Weed-control brush

A brush that turns and tears out the vegetation established between the setts and in the gutters.
No product, no re-entry period, no risk of drift.

Auxiliary line
Required

Snow blade

A wide blade at the end of the arm, pushing the snow to the side.
Fitted on an excavator rather than a lorry, it goes where the lorry cannot.

Auxiliary line
Depending on the version

Salt and grit spreader

Clearing the snow is not enough:
what remains freezes again.
The spreader treats the cleared surface, and it does so in the same pass as the blade.

Auxiliary line
Required

Road sweeper

A roller of bristles that turns and sweeps ahead of it.
With a hopper, it no longer pushes:
it collects, and what is swept up leaves with the tool.

Auxiliary line
Required, continuous function

Finishing roller

A cylinder carried at the end of the arm, walked over a surface already graded.
It does not correct the shape:
it tightens it and closes it.

Auxiliary line
Not required, except the vibrating version

Snow bucket

A lot of volume, little weight, an edge that does not scratch.
Its usual carrier is not an excavator:
it is a loader or a tractor.

Auxiliary line
Not required

Trencher

A toothed chain that digs a narrow slot, straight and of constant depth.
Where a bucket opens wide and disturbs everything, the trencher takes only what is needed.

Auxiliary line
Required

Kerb grab

Gripping, lifting and positioning a kerbstone from the machine.
One model recorded is given for excavators from 5 to 16 tonnes, with rotation through 360°.

Auxiliary line
Required

Asphalt disc

A trench begins with a cut.
The disc opens the asphalt on the line, without breaking it up around — and it is that cut which decides the quality of the reinstatement, months later.

Auxiliary line
Required

High-pressure cleaner

A pump driven by the carrier's hydraulics, and a lance.
Its usual carrier is not an excavator:
it is a tractor or a municipal tool carrier.

Auxiliary line
Required, continuous function

The 11 tools in this family, as a list →

11 Equipping and securing the machine

What does not go at the end of the arm, and decides all the same.

This family contains no working tools:
it contains what allows the machine to carry the others.
Lengthening, protecting, guiding, weighing, lighting, feeding — each of these choices changes what the excavator can do, and sometimes what it can carry.

Long-reach boom

It reaches far, further than an original boom.
And as it lengthens, what it can carry decreases:
it is the same movement, seen from both sides.

Auxiliary line
Not required for the boom itself

Offset boom

It shifts the line of the trench to the side.
The machine stays in line with the track:
it is the equipment that goes to sit against the wall.

Auxiliary line
Required for the hydraulic offset

Dipper arm extension

It is the simplest way to gain reach.
It is also the quickest way to lose load at the end:
the two go together, always.

Auxiliary line
Not required, but the existing lines have to be lengthened

Additional counterweight

It restores at the rear what the lengthening has moved forward.
It is not an attachment part:
it is a modification of the machine.

Auxiliary line
Not required

Cab protection screen

It stands between the driver and what falls, what flies, what bounces.
It is protective equipment:
it is chosen on the risk, not on comfort.

Auxiliary line
Not required

Ram protection

A ram rod does not forgive.
One impact, one scratch, and the seal leaks:
the machine stops for a part that is not repaired on site.

Auxiliary line
Not required

2D grade guidance

Sensors on the equipment, a screen in the cab.
The driver sees where the cutting edge is in relation to a reference set on the site:
a depth, a slope.

Auxiliary line
Electrical supply

3D machine guidance

The machine no longer works from a peg:
it works in the coordinate system of the project.
It works on a digital model, not on a dimension.

Auxiliary line
Electrical supply

On-board bucket weighing

The machine announces what it loads, bucket after bucket.
The lorry leaves at the right weight, the day is counted in real tonnage.
One question remains:
what the figure is for.

Auxiliary line
Electrical supply

On-board camera

It makes visible what the driver cannot see.
The blind spot of an excavator is not a matter of comfort:
it is an area where people walk.

Auxiliary line
Electrical supply

Boom LED lighting

What has to be lit is not the machine:
it is the place where the tool is working.
It is the positioning that makes the quality of the lighting, not the announced power.

Auxiliary line
Electrical supply

On-board hydraulic power pack

The machine has no auxiliary line, or it has one that is not enough.
The power pack brings the hydraulics with it:
it asks the excavator only to carry it.

Auxiliary line
It replaces it

The 12 tools in this family, as a list →

12 Wear parts

What wears out so that the rest may last.

A wear part is not a part that breaks:
it is a part that sacrifices itself, and that is replaced before it is finished.
Letting them go to the end always costs more than changing them in time.

⛔ One rule holds for all of them: the dimension is taken on the part in place, never on the machine model alone.
Two machines of the same tonnage do not necessarily carry the same part.

Rubber tracks

They carry the machine and protect the finished ground.
Three numbers identify them:
pad width, pitch, number of links.

Auxiliary line
Not applicable

Steel tracks

Where rubber cuts, steel holds.
Repairable link by link, but it marks the ground.

Auxiliary line
Not applicable

Pads and over-pads

The pad belongs to the steel track; the over-pad bolts on top of it so as not to mark.
Two different parts, often confused.

Auxiliary line
Not applicable

Undercarriage parts

Rollers, sprocket, idler, tensioner.
Their wear decides the life of the track, and not the other way round.

Auxiliary line
Not applicable

Pins, bushes and links

Every joint of the arm is a pin in a bush.
Caught early, the repair is a part; caught late, it is a reboring job.

Auxiliary line
Not applicable

Bucket wear parts

Teeth, tooth adapters, edges, side protectors.
They sacrifice themselves so that the bucket lasts.

Auxiliary line
Not applicable

Cab glazing

A broken windscreen stops the machine as surely as a breakdown.
It can be replaced without going through the manufacturer.

Auxiliary line
Not applicable

Hoses and fittings

The cheapest wear part, and the one that costs the most when it is neglected.
The fitting decides the compatibility.

Auxiliary line
Depending on the circuit

Stone crusher hammer

The rotor's impact hammers, rebuilt with a hard-metal facing.
They are changed as a complete set.

Auxiliary line
Not applicable
13 Working the soil

Working the soil: preparing the ground, removing stones.

These machines are hitched to a tractor, not to an excavator.
For stones, the excavator has its own tools: skeleton bucket, crusher bucket.

Stone windrower

It gathers surface stones into a line, without carrying them away.
The first stage of stone clearing in two passes.

Hitch
Tractor

Stone picker

It brings surface stones back to a hopper that is emptied at the end of the field.
Towed, driven by the tractor.

Hitch
Tractor

Stone and clod separator

It separates the fine soil from the stones and clods.
Market gardening and potatoes.

Hitch
Tractor

Stone crusher

It reduces the stone on the spot, instead of carting it away.
Hitched to the tractor, driven by the power take-off.

Hitch
Tractor

Self-standing mixer

A tub on legs, hitched to the tractor.
It mixes concrete, screed or feed, without a bucket.

Hitch
Tractor
14 Feeding and ensiling

Feeding and ensiling: compacting the silo, distributing forage, keeping the barn clean.

These tools are mounted on a tractor, a loader or a telehandler, not on an excavator.
They serve livestock farming:
the silo, the feed trough and the barn.

Barn and yard scraper

A flexible scraper, on a pendulum suspension.
It cleans the barn or the yard without damaging the ground.

Hitch
Tractor

Silage spreader

One or two discs that turn flat.
The unloaded grass spreads in thin layers over the silo.

Hitch
Tractor

Cubicle aerator

A disc or an auger at the end of a swivelling arm.
The cubicle bedding is loosened from the alley.

Hitch
Loader or Euro hitch

Silage milling roller

A roller armed with knives, in front of the bucket.
It mills the silo face and leaves a clean surface.

Hitch
Loader or telehandler bucket

Beet chopper bucket

A bucket that picks up and chops beet.
It pours it into the trough or the feeder.

Hitch
Loader, telehandler or tractor
15 Site essentials

Site essentials: preparing the ground before the machine arrives.

These products are not fitted to any machine.
They prepare the site:
the machine passes over without damaging the ground or getting bogged down.

Ground protection mats

Mats laid edge to edge on the ground.
The machine passes, the ground stays intact.

Hitch
None, the machine drives over them

Stabiliser pads

A wide pad under each stabiliser.
The foot does not sink into the ground.

Hitch
None, laid under the stabiliser

Steel trench plates

A thick plate laid over the excavation.
The street stays open, and so does the trench.

Hitch
None, laid over the excavation

Lightweight trench shoring

Aluminium panels against the walls.
The trench stays open, the soil stays in place.

Hitch
None, set by the mini-excavator

Ground stabilisation grids

Cellular panels filled with gravel or grass.
Soft ground becomes a firm platform.

Hitch
None, laid on the ground

Aluminium loading ramps

Two ramps hooked onto the bed.
The machine drives up under its own power.

Hitch
None, hooked onto the bed

Excavation dewatering pump

A pump set in the flooded excavation.
The water goes out, the digging resumes.

Power source
Electric or engine-driven

Buried utility detector

A device that locates buried utilities.
The route is marked, then the machine digs.

Principle
Electromagnetic

Spill absorbent kit

Absorbents ready on site.
The leak is surrounded, the ground stays clean.

Contents
Socks, pads, granules

Fuel transfer tank

A closed tank, with pump and nozzle.
Refuelling is done on site.

Transfer
Pump and nozzle

Site barriers and fencing

Fencing on blocks around the machine.
The site is closed, the public kept away.

Laying
On blocks, by hand

Does your need fit none of these fifteen families?

Describe the work to be done rather than the tool you are looking for.
It is from the use that the attachment is deduced, and not the other way round.

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