Head to head

Grapple saw versus tree shear

Controlled sectional removal, or fast repeat felling?

8 criteria compared

Both attachments cut and hold. The difference is what the job demands of that hold.

A grapple saw grips before or during the cut and keeps control of the severed section — valuable around buildings, roads, utilities, rail and waterways. A tree shear grabs, cuts, retains and places, optimised for repeat cycles rather than precision lowering.

Framing

Why this comparison recurs

Both attachments grip and cut. The difference is what the job demands of that grip, and it is a binary distinction rather than a spectrum: either the severed section must be controlled, or it does not matter where it falls.

That single question settles most of the decision. Around buildings, roads, live utilities, rail corridors and waterways, an uncontrolled drop is unacceptable and a grapple saw is the only answer. In an open paddock, a shear will be faster and cheaper per stem.

Where buyers go wrong is assuming the grapple saw is simply the more capable machine. It is more capable at controlled removal and considerably slower at repeat felling.

What each is for

These are not two points on one scale

Most of the confusion in this comparison comes from reading them as better and worse versions of the same thing. They are built for different work.

A grapple saw holds and places

It grips the section, cuts it, and keeps control of it afterwards. That sequence is the entire product where the client is paying for the absence of an incident rather than for volume removed — beside conductors, track, traffic and buildings, a section that falls freely is a failure regardless of how quickly it was cut.

Best at

Work near live assets, structures and services
Controlled sectional removal where each piece must be placed
Jobs where cut quality or stem face matters afterwards
Urban and corridor settings with no room for material to fall

A shear severs, fast

It is mechanically simpler, cheaper, faster per stem and less demanding of the carrier's hydraulics. Where material can fall freely and the cut face does not matter, all of that is straightforwardly better — and paying for placement capability you do not need is just cost.

Best at

Open-site clearing where material can drop
Regrowth and fence-line work at volume
Sites where speed per stem governs the day's earnings
Carriers with modest hydraulic capacity

Side by side

The comparison

Criterion	Grapple saw	Tree shear
Primary value	Control of the severed section	Stems per minute
Working near assets	Excellent	Limited
Sectional removal at height	Designed for it	Not suited
Repeat felling production	Moderate	High
Cutting mechanism	Hydraulic chainsaw	Hydraulic blade
Binding constraint	Carrier lift capacity	Stem diameter and blade wear
Unit of production	Controlled cuts per day	Stems per hour
Typical buyer	Arboriculture, utility, rail, storm response	Land clearing, farm, fire-break, biomass

The decision

Which one, and when

Choose grapple saw when

Work is beside buildings, roads, live utilities, rail corridors or waterways
An uncontrolled drop is unacceptable
Sections must be lowered, placed or fed directly to a chipper
The job is sold as completed removals, not as hectares

More detail →

Choose tree shear when

Open-site felling where the stem can simply be placed in a bunch or pile
Regrowth, fence lines, shelterbelts and fire-break work
Production is measured in stems per hour
Cost per stem matters more than placement precision

More detail →

The decision rule

If a dropped section would damage something, you are buying a grapple saw. If nothing below matters, you are buying a shear — and the shear will be faster and cheaper per stem.

The money

How the two differ on cost, specifically

Capability comparisons are easy to find. This is where the commercial difference actually sits.

Factor	Grapple saw	Tree shear
Unit of production	Controlled cuts per day	Stems per hour
Binding constraint	Carrier lift capacity at radius	Stem diameter and blade wear
Dominant consumable	Saw chain and bar	Blades, pins, bushes
Cost driver on site	Setup, mobilisation, traffic management	Stems per minute and accumulation
Value proposition	Jobs completed without asset damage	Hectares or stems cleared

What would change the answer

The variables that move this decision

Read across the row your own situation matches. Where most rows point the same way, the decision is straightforward; where they split, the comparison is genuinely close and the economics below should settle it.

Variable	Points to grapple saw	Points to tree shear
Proximity to assets, structures and traffic	Routine	Rare; material can fall freely
Whether the cut face matters afterwards	Yes — regrowth, disease, appearance	No
Carrier hydraulic capacity	Ample, with rotator provision	Modest
Share of work that is sectional removal	High	Low; mostly felling at the base
Client's basis of payment	Jobs completed without incident	Volume or area cleared

Three situations

What we would actually recommend

Not a balanced summary — a recommendation for each case, with the reasoning.

Tree overhanging a building, no crane access

Choose: Grapple saw

Sections must be lowered under control. The constraint to check is the carrier lift chart at working radius minus attachment, rotator and coupler mass — not the saw's cutting capacity.

Regrowth and fence-line clearing on a farm

Choose: Tree shear

Nothing below matters, production is measured in stems per hour, and a shear that accumulates several stems before placing will clear the work far faster and more cheaply.

Utility corridor with both clearance work and occasional close removals

Choose: Both, on the same carrier

The attachments serve different parts of the same contract. The carrier hydraulic and lift capability must satisfy the more demanding of the two, which is usually the grapple saw.

The arithmetic

The weight budget that decides the job

1A grapple saw rated to cut 550 mm is fitted to a mid-size carrier. The attachment weighs 420 kg; the rotator and linkage add roughly 120 kg; the quick coupler adds roughly 150 kg.
2That is about 690 kg deducted from the lift chart before any timber is touched.
3If the chart allows 2,200 kg at the reach and slew the work actually uses, the timber allowance is about 1,510 kg — not 2,200.
4A long green hardwood section reaches 1,510 kg at a diameter well below the saw's 550 mm rating.

The saw's cutting capacity is not the working limit. The carrier's ability to hold what you just cut, where you are standing, is.

The coupler and rotator masses above are placeholders to show the shape of the calculation — get the real figures from the supplier in writing. The same arithmetic applies to a shear, with one difference: a shear drops what it cuts, so the question only arises if you intended to hold it.

What goes wrong

Mistakes specific to this decision

How to settle it

The order to work through, for your own case

Each step narrows what the next has to establish. Worked in order, most buyers find the decision resolves before the last one.

Establish where the machine is permitted to stand

On corridor, roadside and rail work the reach requirement is set by access rules rather than by the vegetation, and the permitted position may be metres further back than the site suggests.

Run the lift chart at that geometry

With attachment, rotator and coupler weight deducted, at the reach and slew the work actually uses. Near live assets this is the binding constraint, not the cutting rating.

Decide whether material can fall freely

If it can, a shear is faster, simpler and cheaper and there is no case for paying for placement capability. If it cannot, that capability is the whole product.

Check the carrier's hydraulic and rotator provision

A grapple saw asks more of the carrier than a shear — continuous flow for the saw, rotator circuit, and the controls to modulate both. Confirm all three before assuming a fit.

Consider carrying both

Most established fleets do. A shear is inexpensive relative to the carrier, the two suit genuinely different work, and the combination lets one machine quote both open clearing and asset-adjacent removal.

Often overlooked

The option that is not on this page

Carry both

Most established vegetation and clearing fleets do, and choose per job rather than per business. The attachments serve genuinely different work, a shear is inexpensive relative to the carrier, and the combination lets one machine quote both open clearing and asset-adjacent removal. Where your work spans both, the honest answer to this comparison is often that it is not a comparison.

Common questions

Frequently asked questions

Can a tree shear be used for arboriculture?

For open-site removals where sections can be dropped, yes. For work near structures, roads or services, no — a shear retains and places a stem, but it is not designed for the controlled sectional lowering that close-quarters removal requires.

Why is my grapple saw limited to smaller sections than its cutting rating?

Because cutting capacity and allowable piece weight are unrelated specifications. What is available to lift timber is the carrier lift chart at working radius minus attachment, rotator and coupler mass, and in green hardwood that remainder binds well before the saw does.

Which is cheaper to run?

Both are modest against the carrier. Shears consume blades; grapple saws consume chain, bar and rotator service. On scattered urban work, mobilisation between jobs usually exceeds all of it, which is why transportability is an economic specification in that market.

Detail