Skip to content

Attachments

Forestry grapples

Geometry beats size — the grapple should be selected according to material flow.

3 benchmark machines7 buying criteria2 buying traps

A forestry grapple should be selected according to material flow, not simply according to area. Different jobs require different geometry, and a grapple optimised for one material handles another badly.

Australia has a genuine domestic manufacturing presence in this category: Randalls manufactures rotating logging grapples in Australia, alongside distributing a wide range of international forestry brands.

What it does

  • Collects, holds and places logs or stems
  • Orients material for stacking, sorting or truck loading
  • Rotates to align with the material or the receiving stack

Who profitably buys one

  • Log loading and yard operators
  • Forwarder and skidder operators
  • Land-clearing contractors
  • Biomass handling operations
  • Sawmill and yard material handlers

Market context

The forestry grapples market in Australia

Grapples are the least glamorous and most consistently profitable attachment in forestry. Almost every operation needs one, they are mechanically simple, and geometry rather than size determines whether they work well.

Australia has genuine domestic manufacturing in this category. Randalls manufactures rotating log grapples locally alongside distributing international forestry brands, and New Zealand-built equipment is represented here for felling, bunching, log loading, woodlot thinning, sorting and stacking.

The commercial mistake is selecting on jaw area. A large open area does not guarantee a secure grip on your material — closing profile, tip shape and jaw count determine whether pieces are held or re-handled, and re-handling is pure lost time.

Variants

Main configurations

Forwarder grapple

Best for

  • Repeatedly collecting multiple cut-to-length logs
  • Fast loading cycles in the strip

Loader grapple

Best for

  • Loading trucks
  • Handling roadside piles
  • High tonnes per hour

Sorting grapple

Best for

  • Individual log control
  • Assortment sorting at the landing or yard

Bunching grapple

Best for

  • Multiple stems
  • Full-tree and tree-length work

Fixed grapple

Best for

  • Simple, robust duty
  • Lower cost and fewer failure points

Rotating grapple

Best for

  • Better log orientation and placement
  • Truck loading and stacking accuracy

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.

Randalls Australian-manufactured rotating logging grapples

Brand profile →

Domestically manufactured rotating logging grapples, supported by an Australian forestry supplier operating since 1968.

ManufactureAustralia
TypeRotating logging grapples
Supporting rangePonsse, SP Maskiner, SANY, Duxson, Indexator, Clark Tracks, Falcon Forestry, Risutec, OMEF

Duxson Felling and bunching equipment

Brand profile →

New Zealand-manufactured equipment represented in Australia through Randalls, targeting felling, bunching, log loading, woodlot thinning, sorting and stacking.

ManufactureNew Zealand
Australian representationRandalls
ApplicationsFelling, bunching, log loading, woodlot thinning, sorting, stacking

Indexator Forestry rotators

Brand profile →

Rotators are a specification in their own right — rotator weight subtracts directly from usable lift capacity.

CategoryForestry rotators

Measurement

How this machine should be judged

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

Cycles per hour
Grapple geometry and rotator speed drive this more than raw grapple area.
Tonnes handled per hour
The commercial number in loading and yard work.
Dropped or re-handled pieces
Wrong geometry shows up as re-handling, not as an obvious fault.

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.

  • Material type and whether pieces are handled individually or in bunches
  • Grapple area matched to log diameter and piece count
  • Jaw geometry — closing profile matters more than open area
  • Rotator specification, torque and service life
  • Total assembly weight against the carrier lift chart
  • Hydraulic flow and rotator feed arrangement
  • Availability of pins, bushes, seals and rotator parts in Australia

What goes wrong

Buying traps

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

Ownership

Consumables and wear items

Cost drivers

  • Pin and bush wear
  • Rotator service and rebuild
  • Cylinder seals and hoses
  • Tip and jaw wear in abrasive conditions

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.

Grapple economics are about cycles per hour and re-handling, not purchase price. A grapple with the wrong geometry for your material costs you a percentage of every cycle for its whole life.

The rotator is a specification in its own right rather than an accessory, and its mass subtracts directly from usable lift capacity.

Cost drivers, their effect, and what you can do about them
Cost driverEffect on your economicsHow to control it
Jaw geometry versus materialWrong closing profile shows up as re-handled pieces rather than an obvious fault.Test on your actual material — bunched stems and single sorted logs need different geometry.
Pin and bush wearThe primary consumable, accelerated by abrasive conditions and heavy cycling.Confirm local pin, bush and seal availability before purchase.
Rotator service lifeA significant periodic cost, and rotator play is an early indicator on used equipment.Establish service intervals and check play on any used purchase.
Total assembly massGrapple plus rotator plus coupler comes off the lift chart before any timber.Budget the whole assembly against lift capacity at working radius.

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

Truck loading at roadside

The situation
High-volume loading from roadside stacks onto log trucks.
What usually works
A loader grapple with rotation, optimised for tonnes per hour and accurate placement rather than individual log control.
The trade-off
Poor at single-log sorting where assortments must be separated precisely.
Ask the supplier
What cycles per hour do existing operators achieve loading this log size?
2

Assortment sorting at the landing

The situation
Multiple assortments requiring individual log handling and accurate stacking.
What usually works
A sorting grapple designed for individual log control, accepting lower gross throughput for placement accuracy.
The trade-off
Slower on bulk handling than a loader grapple.
Ask the supplier
How precisely can this place a single log without re-gripping?
3

Full-tree bunching and clearing

The situation
Handling multiple stems in land clearing and biomass recovery.
What usually works
A bunching grapple sized for multiple stems, with robust construction for abrasive conditions.
The trade-off
Over-large for single-log work if the operation later changes.
Ask the supplier
What bunch size does this hold securely without dropping stems?

Local conditions

Australian considerations

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

Local manufacture and support

Australian-manufactured rotating log grapples are available through the domestic forestry supplier network, which shortens parts lead times for pins, bushes and seals — the components that actually wear.

Abrasive conditions shorten life

Sandy and gritty Australian soils accelerate pin, bush and tip wear beyond northern-hemisphere expectations. Specify for the conditions and stock wear parts locally.

Rotator mass matters on reach work

Where the grapple is used at extended reach — loading over obstacles, working from a trail — the rotator's contribution to total assembly mass becomes a real constraint on what can be lifted.

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.

  • Comparison presented on jaw open area alone
  • Rotator treated as an accessory rather than specified
  • No local availability of pins, bushes and seals
  • Total assembly mass not stated for lift chart purposes
  • No opportunity to test on your actual material

Before you sign

Forestry grapple buyer checklist

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

  • Material type, and whether pieces are handled individually or in bunches
  • Grapple area matched to log diameter and piece count
  • Closing profile and tip geometry tested on your material
  • Rotator specification, torque and expected service life
  • Total assembly mass against the carrier lift chart at working radius
  • Hydraulic flow and rotator feed arrangement
  • Local availability of pins, bushes, seals and rotator parts
  • Cycles per hour achieved by an existing operator on comparable material

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

Common questions

Frequently asked questions

What type of forestry grapple do I need?

It follows material flow. Forwarder grapples suit repeatedly collecting multiple cut-to-length logs. Loader grapples suit truck loading and pile handling. Sorting grapples suit individual log control. Bunching grapples suit multiple stems. Fixed grapples are simple and robust; rotating grapples give better orientation and placement. Start from how your material actually moves.

Should I buy a rotating or fixed grapple?

Rotating grapples give better log orientation and placement, which matters for truck loading and accurate stacking. Fixed grapples are simpler, more robust and have fewer failure points, which suits rough handling where placement accuracy is less important. Rotation adds mass and service cost as well as capability.

Why does my grapple keep dropping logs?

Usually geometry rather than size. A large open area does not guarantee grip — closing profile, tip shape and jaw count determine whether pieces are held. A grapple matched to bunched stems will handle single sorted logs poorly, and vice versa. Re-handling is the symptom, and it costs a percentage of every cycle.

What wears out on a forestry grapple?

Pins and bushes first, then cylinder seals and hoses, then rotator internals, with tip and jaw wear in abrasive conditions. None of it is expensive individually, which is why local parts availability matters more than purchase price in this category.

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