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Harvesting systems

Feller bunchers

Highest-throughput felling in the full-tree system — cut, accumulate, bunch, repeat.

1 benchmark machines10 buying criteria4 buying traps

A feller buncher mechanically cuts a standing tree and places it into a bunch suitable for extraction. It does not normally process the tree into finished sawlogs — that job belongs to a processor at the landing, or to a harvester in a cut-to-length system.

Feller bunchers are the opening stage of the full-tree and tree-length production chain. Because they do one job and do it extremely quickly, they can achieve production rates that no multi-function machine matches. That specialisation is also the commercial risk: a feller buncher that runs out of felling work is expensive idle capital with very few alternative uses.

What it does

  • Approaches and grips the standing stem
  • Severs the stem with a disc saw, bar saw or shear
  • Accumulates several stems in the head before releasing
  • Places the accumulated bunch in a position suited to skidder or forwarder extraction
  • In plantation thinning, works selectively within a corridor or row

Who profitably buys one

  • Large plantation harvesting contractors
  • Full-tree and tree-length harvesting contractors
  • Biomass contractors recovering whole stems
  • Large-scale land-clearing contractors

Market context

The feller bunchers market in Australia

Feller bunchers sit at the top of the capital ladder in Australian plantation harvesting, and the population is concentrated where the work is: the Green Triangle, the Tumut and Murray region, Gippsland and the softwood estates of Western Australia. Outside those regions a dedicated felling machine is difficult to keep busy, which is why land-clearing businesses in the same tonnage bracket almost always run an excavator and a shear instead.

The commercial logic is narrow but powerful. A feller buncher does one job — sever the stem and place it in a bunch — and does it faster than anything else. It cannot process, cannot load, cannot dig, and has almost no alternative revenue use. Everything therefore depends on whether the felling hours exist, and whether the machines downstream can move what it cuts.

Australia's softwood outlook supports long-term investment in this class: ABARES projects softwood plantation log availability rising from roughly 15 million m³ a year in 2025-29 toward approximately 23 million m³ a year by 2050-54. That is a genuine case for high-production felling capacity — but it is a 25-year case, not a guarantee that your particular contract will be renewed.

Variants

Main configurations

Tracked feller buncher

Best for

  • Difficult and broken terrain
  • Steep ground
  • Heavy timber
  • Maximum stability under large attachments
  • Soft or wet soils needing low ground pressure

Wheeled feller buncher

Best for

  • Fast travel between trees
  • Regular plantation blocks
  • Flatter terrain
  • High-production clearfell where travel time dominates the cycle

Published specifications

Benchmark machines in the Australian market

Indicative published manufacturer and distributor figures. Confirm every specification, lift chart and hydraulic requirement with the manufacturer or authorised dealer before purchase.

A useful Australian benchmark for a heavy tracked feller buncher, offered with multiple disc-saw heads including the FS50 and FR50 positioned for plantation, thinning and high-accumulation work.

Peak power~224 kW
Maximum boom reach8.49 m
Tractive effort373 kN
Operating weight~36 t
Pump flow~494 L/min
Fuel capacity~870 L
Head cutting capacity~510 mm to high-600 mm class, depending on head

Model pages

Specific machines in this class

Full published specifications, commercial fit, and what to verify before signing — for each machine.

Side by side

Comparison

Tree shear versus feller buncher — the recurring commercial decision
RequirementTree shear on excavatorDedicated feller buncher
Acquisition costLowerMuch higher
Carrier versatilityHighLow
ProductionModerate to highVery high
Plantation clearfellLimitedExcellent
Civil clearingExcellentSpecialised
Occasional tree workExcellentPoor economics
Multiple attachments on one carrierYesLimited
Utilisation flexibilityHighLower

Measurement

How this machine should be judged

These are the numbers that determine whether the purchase works. Specification sheets rarely contain any of them.

Stems per productive machine hour
The single most useful felling productivity number — far more informative than horsepower.
Tonnes per hour in comparable timber
Ask for it in your dominant stem class, not the supplier's best-case demonstration timber.
Average accumulation per cycle
How many stems the head carries before placing determines cycles per hour.
Fuel per tonne
Fuel per hour flatters a slow machine. Fuel per tonne does not.
Mechanical availability
Available scheduled hours ÷ total scheduled hours × 100.

Before you request quotes

Buying criteria

Assemble every one of these before contacting a supplier. Any line you cannot answer is where your commercial risk sits.

  • Average stems per hour in your dominant stem class
  • Tonnes per hour in comparable timber, witnessed not quoted
  • Fuel per hour and fuel per tonne
  • Average accumulation per cycle
  • Attachment weight and its effect on the carrier's lift chart
  • Disc-saw tooth consumption and saw maintenance cost
  • Hydraulic operating temperature under sustained load
  • Expected undercarriage life in your soils
  • Machine availability history from existing Australian fleets
  • Transport dimensions and whether the head must come off to travel

What goes wrong

Buying traps

Each of these is a documented pattern, not a hypothetical.

Ownership

Consumables and wear items

Cost drivers

  • Disc-saw teeth and tooth-holder wear
  • Undercarriage life on tracked machines
  • Hydraulic oil and cooling under sustained high flow
  • Fuel, which is heavily influenced by travel between trees
  • Boom and head pin and bush replacement
  • Transport and permits for a 36-tonne-class machine

Price these before signing

  • Saw teeth and holders
  • Hydraulic hoses
  • Track chains and idlers
  • Pins and bushes
  • Filters

Obtain consumable prices at quotation stage and model annual expenditure. Use the dealer quote checklist.

What it actually costs

Cost structure and the variables that move it

Purchase price is the smallest part of most forestry equipment decisions. These are the variables that decide what the machine costs per unit of saleable production.

A feller buncher is bought in the $700,000-and-above bracket new, and the purchase price is the smallest part of the decision. Depreciation per productive hour, undercarriage life and saw-tooth consumption between them usually exceed the finance cost over a five-year hold.

The single largest variable is utilisation. A machine carrying $100,000 of annual depreciation costs $40 per productive hour at 2,500 hours and $80 at 1,250 — same machine, same price, double the cost. No specification advantage recovers a utilisation shortfall of that size.

Cost drivers, their effect, and what you can do about them
Cost driverEffect on your economicsHow to control it
Annual productive hoursDominates depreciation per hour. Halving hours doubles the fixed cost carried by every tonne.Contract the hours before signing. Treat uncontracted hours as zero in the model.
Disc-saw teeth and holdersA continuous consumable. Consumption rises sharply in dirty stems, sandy soils and stump-height cutting.Price teeth and holders at quotation stage and track consumption per 100 tonnes, not per week.
UndercarriageOn a 36-tonne tracked machine this is a major periodic cost, and abrasive or rocky ground shortens life considerably.Ask existing Australian operators in comparable soils what life they achieve, not what the brochure claims.
Fuel per tonneTravel between trees can dominate fuel burn in scattered or low-stocking stands.Measure fuel per tonne during the demonstration, not litres per hour.
Transport and permitsA 36-tonne machine with a head fitted frequently exceeds standard dimensions, adding permit and escort cost on every move.Confirm transport width and height with the head fitted, and whether it must be removed to travel.
DowntimeIn a full-tree chain, a stopped feller buncher idles the skidders and processor behind it.Buy dealer response time and local parts holding as deliberately as you buy the machine.

Model these against your own contracted hours rather than accepting a generic hourly rate — the machine cost calculator works the arithmetic with your figures, and the bottleneck analyser shows whether the machine is the constraint at all.

Worked situations

Three buyers, three different right answers

The same machine class suits very different businesses in very different configurations. These are the situations that recur.

1

Contractor moving from shear to dedicated felling

The situation
A land-clearing business has won a three-year plantation clearfell contract on top of its existing civil work. Its 25-tonne excavator and shear currently handle around 600 felling hours a year; the new contract would add roughly 1,800.
What usually works
At around 2,400 contracted felling hours, a dedicated machine becomes defensible — but only if the excavator stays in the fleet for the civil work rather than being traded to fund it.
The trade-off
The business takes on a machine with almost no alternative use. If the contract is not renewed in year three, it holds a specialised asset into a narrow resale market.
Ask the supplier
Can the contract term be matched to the finance term, and what happens to the machine if it is not renewed?
2

Established clearfell contractor replacing an ageing machine

The situation
A harvesting contractor running 3,000+ productive felling hours a year is replacing a machine approaching 20,000 hours. Timber averages 250 mm DBH with occasional stems to 500 mm.
What usually works
The replacement decision turns on accumulation and cycle time in the 200-300 mm class, not on maximum cut diameter. Head selection matters more than carrier size here — a head configured for high accumulation in plantation thinning-scale stems will out-earn a larger-capacity head in this stand.
The trade-off
Specifying to the dominant stem class means occasional oversize stems need a second pass or a different machine. That is usually cheaper than carrying unused capacity for 3,000 hours a year.
Ask the supplier
What is the average accumulation per cycle with the exact head being quoted, in 250 mm timber?
3

Biomass contractor recovering whole stems

The situation
A biomass operation is felling small-diameter, high-stocking regrowth for chipping, with an offtake priced per green tonne delivered.
What usually works
Stems per hour and accumulation dominate completely; maximum cut diameter is almost irrelevant. A smaller, faster machine with a high-accumulation head will beat a larger one.
The trade-off
Small-stem work is hard on saws and produces high tooth consumption per tonne. The consumable budget must be modelled per tonne before the offtake price is accepted.
Ask the supplier
What is the tooth cost per green tonne in stems of this size, from an operator already doing it?

Local conditions

Australian considerations

Specification sheets are written for global markets. These are the factors that change the answer here.

Operator protection is not optional

Forestry introduces risks from falling trees, branches, chain shot, timber penetration and rollover that a general civil machine is not built for. Tasmania's Forest Safety Code and the SafeWork NSW code both address mechanised felling directly. Confirm the protective structures required in your state before specifying the carrier, not after delivery.

Fire risk in summer operations

Exhaust, turbocharger, DPF, hydraulic oil, electrical faults, bearings and accumulated debris are all ignition sources in a highly combustible environment. For high-utilisation machines, evaluate automatic detection and suppression, engine and hydraulic isolation, and a daily debris-cleaning regime as part of the purchase rather than as an afterthought.

Soil and wet-season trafficability

Ground pressure decides whether the machine works in a wet week or sits. In regions with restricted harvest plans, rutting is a compliance issue as much as a productivity one, and a tracked base is frequently specified for that reason alone.

Regional support depth

Onetrak's Tigercat network includes forestry-relevant branches at Tumut and Mount Gambier alongside its state locations. Distance to the nearest branch holding felling-head parts changes the real availability of the machine more than most specification differences.

Warning signs

Red flags in the sales conversation

None of these are proof of a bad supplier. All of them are reasons to keep asking.

  • A quoted maximum cut diameter with no stated accumulation figure or stems-per-hour rate
  • "Fits your application" without the supplier asking for your DBH distribution, stocking or terrain
  • A demonstration arranged in timber noticeably larger or cleaner than your own stands
  • No answer on disc-saw tooth consumption per tonne in comparable conditions
  • Transport dimensions quoted without the head fitted
  • A production figure quoted per engine hour rather than per productive machine hour
  • No named local technician or parts location for the felling head specifically, as distinct from the carrier

Before you sign

Feller buncher buyer checklist

Any line you cannot answer is where your commercial risk sits. Take this to the supplier meeting.

  • Contracted annual felling hours, in writing, with the contract term compared against the finance term
  • Your stand's average DBH, 90th-percentile DBH and stems per hectare
  • Stems per hour and tonnes per hour witnessed in comparable timber
  • Average accumulation per cycle with the exact head being quoted
  • Fuel per hour and fuel per tonne recorded during the demonstration
  • Disc-saw tooth and holder prices, and expected consumption per 100 tonnes
  • Expected undercarriage life in your soils, from an existing operator
  • Downstream capacity: can the skidders, processor and trucks absorb this felling rate?
  • Transport width, height and mass with the head fitted, plus permit requirements
  • Nearest technician and parts location for both carrier and head
  • Fire suppression specification and daily debris-cleaning regime
  • Protective structures confirmed against your state's forest safety code

For the full procurement sequence, see the commercial procurement checklist and what a dealer quote should include.

Common questions

Frequently asked questions

How much does a feller buncher cost in Australia?

New machines in the heavy tracked class sit in the $700,000-and-above bracket, though configuration and head selection move that considerably. The used market is far wider: observed Australian listings have included a 2018 Tigercat L822D at approximately $375,000 excluding government charges and a 2021 Tigercat 875E at approximately $850,000. Those are individual asking prices rather than valuations, and condition, hours and head configuration drive the spread more than model year does.

How many hours a year do I need to justify a feller buncher?

There is no fixed threshold, but the arithmetic is clear. A machine carrying $100,000 in annual depreciation costs $40 per productive hour at 2,500 hours and $80 at 1,250. Below roughly 1,500 contracted productive hours, a 25-tonne excavator with a tree shear almost always produces a better return, because the carrier keeps earning from civil and clearing work when felling stops.

Tracked or wheeled — which should I buy?

Work out what dominates your cycle. If travel between trees is a large share of it — regular plantation blocks, flat ground, high production clearfell — wheels earn the difference. If stability, flotation, slope or heavy timber is the constraint, tracks do. Neither choice fixes a bottleneck further down the chain.

Does maximum cut diameter matter when comparing machines?

Much less than buyers assume. A machine with a 690 mm maximum cut does not create value because it can occasionally cut a 690 mm tree. For a contractor working predominantly 180-300 mm stems, the figures that decide profitability are accumulation area, stems accumulated per cycle, swing and boom speed, travel time between trees, and fuel per tonne.

What is the biggest mistake buyers make with feller bunchers?

Buying felling capacity the rest of the system cannot use. A chain with a 100 t/h feller buncher, an 80 t/h skidder, a 65 t/h processor and 55 t/h of truck supply delivers 55 t/h. The larger machine adds capital, depreciation, fuel and transport cost, and not one extra tonne.

What should I check on a used feller buncher?

Start with ECM hours against idle hours — 10,000 hours with 4,000 idle is a very different wear profile from 10,000 under load. Then run a pump flow test, pressure test, case-drain test, cylinder leakage test and operating-temperature test. Inspect the boom base and track frame for cracking and undocumented repair welds, and establish head hours separately from machine hours.

What does a feller buncher cost to run per hour?

It depends far more on your conditions than on the model. The components are depreciation, fuel, operator, service and repairs, disc-saw teeth and holders, undercarriage, and transport. Model them against your own contracted hours rather than accepting a generic hourly rate — the machine cost calculator on this site works the arithmetic with your figures.

Can a feller buncher be used for land clearing?

It can fell, but it is usually the wrong economic choice. Land clearing rewards a carrier that changes attachments and moves between industries — grapple, shear, mulcher, stump shear, bucket. A feller buncher does one job and has little alternative use, so its fixed cost has nowhere else to go when the clearing work is quiet.

Elsewhere on this site

Where this class comes up

The comparisons, buyer profiles and fleet packages that turn on this machine.

See also

Related machine classes