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Machinery SpecialistForestry Attachment Guide

Head to head

The four comparisons buyers actually get wrong

Two attachments with similar names doing entirely different jobs is the most expensive mistake in this category. Each comparison below answers the question first, then shows the working.

The short answer

Four pairings account for most of the wrong purchases in this category. In every case the two tools sound similar, fit the same machines and do materially different jobs. Each comparison below gives the answer in a sentence, then shows the reasoning, the running costs and three worked buyer situations.
Orange and blue Dipperfox SC600 stump grinder on a backhoe boom, standing over the pile of coarse wood chips it has just produced
Trevi Benne WE 010 stump cutter closing its toothed jaw on an extracted stump, surrounded by split timber and root debris

Stump Grinder or Stump Cutter?

They solve opposite problems.

OMEF BIG INCH BI500 tree shear in green, mounted on the stick of a John Deere 200D LC excavator in a contractor's yard
OMEF TE series forestry mulcher on an excavator, showing the fixed-tooth rotor, front pusher bar and hydraulic hose routing

Tree Shear or Forestry Mulcher?

Shear if the timber has value or has to be placed somewhere specific.

OMEF GS400 grapple saw on a compact Kubota excavator, jaws open beside a standing trunk in autumn woodland with a cut log on the ground
OMEF BIG INCH BI500 tree shear in green, mounted on the stick of a John Deere 200D LC excavator in a contractor's yard

Grapple Saw or Tree Shear?

Shear for volume felling in open ground where speed is the goal.

OMEF GS400 grapple saw on a compact Kubota excavator, jaws open beside a standing trunk in autumn woodland with a cut log on the ground
Green OMEF PFIMX log grapple closed around a freshly cut hardwood log, with more logs laid out on the ground behind it

Grapple Saw or Forestry Grab?

If your work is feeding a chipper, building log decks and cleaning up after someone else has cut, buy the grab — it is the highest-utilisation attachment most contractors own.

Compare the complete work method

These decisions sit beyond attachment names: a lighter maintenance head versus a forestry rotor, grinding versus excavation, and mechanised cutting versus conventional crews.
Excavator-mounted fixed-tooth forestry mulcher with protective pusher bar
Excavator hydraulic mower maintaining grass and light scrub on an orchard bank

Forestry Mulcher vs Hydraulic Mower

Choose a forestry mulcher when stems, regrowth and woody residue must be reduced into a controlled residual layer. Choose a hydraulic mower for grass, weeds and light scrub where fast area coverage and a maintained finish matter more than destroying woody material. A mower is not a lighter, cheaper mulcher; it is a different rotor and duty cycle.

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Excavator-mounted stump grinder destroying a stump in place
Tracked excavator clearing vegetation and ground on a civil work front

Stump Grinder vs Excavator Removal

Grind in place when access, spoil, buried assets and reinstatement make excavation expensive. Excavate when the ground is already being stripped, the root plate must be exposed, or the stump can be handled inside an existing earthworks and disposal stream. Compare the completed site, not the minutes spent at the stump.

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Excavator grapple saw holding a tree section during controlled removal
Roadside vegetation work around retained trees and public infrastructure

Grapple Saw vs Climber and Crane

Use a grapple saw where the carrier can establish a stable working envelope and controlled sections can be cut, held and placed from the ground. Use climbers and cranes where canopy access, reach, rigging geometry, tree condition or site constraints sit outside that envelope. The methods overlap, but neither replaces the other across every tree.

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Excavator tree shear holding a felled stem under mechanical control
Selective vegetation work across Australian farm ground with retained trees

Tree Shear vs Chainsaw Crew

Choose a tree shear where the carrier can grip, cut and place repeat stems safely and downstream handling can absorb the output. Keep chainsaw felling where access, selectivity, terrain, retained vegetation or unusual stem form defeats the machine envelope. Judge both methods at the point where timber is safely landed and the work area is released.

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How to compare two attachment categories

The specification sheet is the last thing to look at, not the first. These four questions settle most comparisons before you open a brochure.
  1. 01

    What are you producing?

    Whole stems, mulch, chip, sized material or a cleared area. The output is the job, and two tools that produce different outputs are not alternatives regardless of how similar they look.
  2. 02

    Does the material have value?

    If the timber is worth something, tools that destroy it are excluded immediately. If it is waste, tools that carefully preserve and place it are doing expensive work for no return.
  3. 03

    How are you pricing the work?

    Per stem, per stump or per hectare. The unit you quote in tells you which tool's economics you need to model, and the two calculators on this site cover the two hardest cases.
  4. 04

    What does your carrier already have?

    Circuits are a real cost to add. Where two categories otherwise tie, the one your machine can already run today usually wins on total cost.

Comparisons this site deliberately does not make

Impartial buyer advice means saying where a comparison is not useful.

You will not find brand-versus-brand shoot-outs here, because this site has not independently tested this equipment and pretending otherwise would be dishonest. What the manufacturer profiles do instead is set out each range’s published specification, what it suits, where it does not fit and what the parts situation looks like in Australia — which is the part of a brand decision that actually costs money.

You will also not find price comparisons, because attachment pricing moves with the exchange rate, specification, rotation options and the carrier bracket. The costs page covers what drives the number instead, which stays true for longer than a figure does.

Frequently asked questions

01

Why do buyers confuse these attachment categories?

Because the names describe the tool rather than the job. A stump grinder and a stump cutter both have “stump” in the name and do opposite things. A tree shear and a forestry mulcher both clear vegetation and produce completely different outputs. The brochure language does not separate them, so the confusion is structural rather than careless.
02

What is the most expensive category mistake?

Buying a stump cutter expecting it to remove stumps from the ground. It cannot — it works on stumps that are already out. It is the most common error in the Australian market and it produces an attachment that is functionally useless for the job it was bought to do.
03

Can one attachment cover two of these jobs?

Rarely, and the exceptions are narrow. A grapple saw both cuts and holds, which genuinely replaces two operations. Beyond that, the categories exist because the mechanisms are different: grinding is not cutting, mulching is not felling, and holding is not sawing. Contractors who try to make one tool do two jobs usually end up buying the second tool anyway.
04

Should I buy the more versatile option?

Only if the versatility maps to work you actually have. Versatility usually costs money up front, adds hydraulic complexity and adds consumables. An attachment that does one job well at high utilisation beats one that does two jobs adequately at low utilisation, every time.
05

How do I decide when both options fit my machine?

Stop looking at the machine and look at the work: what you are producing, whether the material has value, and whether you are pricing per stem, per stump or per hectare. Those three questions settle most of these comparisons faster than any specification table.
Frequently asked questions

Where to go next

The full buyer's guideAll eight categories and what separates them, from the top.
What suits your carrierNarrow the field by machine before you compare anything.
What attachments costThe five cost lines, and how to compare two quotes properly.
AS 4373 and mechanised pruningWhere a compliance specification, not a comparison, decides the tool.