Machinery Specialist

  • 7 Speedwell Place South Windsor NSW
  • sales@machineryspecialist.com
  • 0292480120
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Forestry Equipment

Forestry Equipment Selection Guide

Excavator Attachment Sizing

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How to Choose the Right Forestry Attachment for Your Excavator

Not sure which attachment fits your carrier? This guide covers the full OMEF, Shearex, Dipperfox, Powerhand and TreviBenne range for Australian and New Zealand conditions. Below you will find application tables that pair common forestry jobs – land clearing, stump removal, tree felling and log handling – to the correct attachment type, plus excavator sizing tables that map carrier weight to hydraulic flow requirements. If you need a compatibility check, our technical team can confirm oil flow, pressure and mounting specifications for your specific machine. 

Recommended Forestry Attachments by Excavator Size

Attachment Type 1.5 - 5T
Mini		 5 - 10T
Small		 10 - 20T
Medium		 20 - 30T
Large		 30T+
Heavy
Tree Shear OMEF Big Inch
BI100 (1.5-3T)
BI200 (2.5-8T)		 OMEF Big Inch
BI200 (2.5-8T)
BI300 (7-18T)		 OMEF Big Inch
BI300 (7-18T)
BI400 (14-24T)		 OMEF Big Inch
BI400 (14-24T)
BI500 (23-40T)		 OMEF Big Inch
BI500 (23-40T)
BI600 (30-50T)
Stump Shear — — OMEF ST90
12-20T		 OMEF ST140
20-35T		 OMEF ST140
20-35T
Stump Grinder Dipperfox SC400
1.5 - 5 tons		 Dipperfox SC600
6 - 14 tons		 Dipperfox SC850
14 - 30 tons		 — —
Stump Cutter — — TreviBenne WE 010
11.5-20T		 TreviBenne WE 013
16-28T		 —
Grapple Saw OMEF GS250
3-6T / 250mm		 OMEF GS250 / GS400
3-6T / 250mm
5-10T / 400mm
+ Powerhand EX 25 + saw
(6-12T)		 OMEF GS400 / GS600
5-10T / 400mm
12-22T / 600mm
+ Powerhand EX 25 / EX 28 / EX 36 + saw
(6-12T / 12-25T / 16-25T)		 OMEF GS600 / GS800
12-22T / 600mm
22-30T / 800mm
+ Powerhand EX 28 / EX 36 / EX 40 + saw
(12-25T / 16-25T / 20-30T)		 Powerhand EX 40 + saw
(20-30T)
Log & Forestry Grab OMEF PFIMX 600
1.5-5T		 OMEF PFIMX 1000
5-10T		 Powerhand EX 25 / EX 28 / EX 36
6-12T / 12-25T / 16-25T		 Powerhand EX 28 / EX 36 / EX 40
12-25T / 16-25T / 20-30T		 Powerhand EX 40
20-30T

NOTE: Always confirm compatibility with your excavator hydraulics before purchase.

Complete Forestry Attachment Range

From clearing dense brush to felling and processing large timber, our curated range of OMEF, Dipperfox, TreviBenne and Powerhand attachments give Australian operators the right tool for every stage of the job.

OMEF Tree Shears

TREE SHEAR

Powerful shears for cutting and processing trees quickly and safely with precision and control.

BRAND: OMEF

Dipperfox Stump Grinder

STUMP GRINDER

Efficient stump grinders that make light work of stumps for land clearing and site preparation.

BRAND: Dipperfox

TreviBenne Stump Cutter

STUMP CUTTER

Powerful stump cutters for fast, efficient removal for land clearing and site reclamation.

BRAND: TreviBenne

OMEF Grapple Saw - Forestry Attachments

GRAPPLE SAW

Hydraulic grapple saws for cutting and handling trees in one efficient operation.

BRANDS: OMEF + Powerhand

Powerhand Log Grab - Forestry Attachment

FORESTRY GRAB

Heavy duty log grabs for handling, loading and moving logs and timber with ease.

BRANDS: OMEF + Powerhand

OMEF Excavator Mulcher - Forestry Attachment

FORESTRY MULCHER

High performance mulchers designed to shred vegetation, trees and branches.

BRAND: OMEF

Not Sure Which Attachment Fits Your Excavator?

Our team works with operators across Australia and New Zealand to match the right forestry attachment to your carrier weight, hydraulic flow, and job site conditions. Tell us your excavator model and we will recommend the best fit.

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Frequently Asked Questions

Quick answers to common questions about matching forestry attachments to your excavator. For specific hydraulic or compatibility advice contact our technical team

What size tree shear do I need for my excavator?
Match the OMEF Big Inch model to your carrier weight: BI100 for 1.5–3 ton, BI200 for 2.5–8 ton, BI300 for 7–18 ton, BI400 for 14–24 ton, BI500 for 23–40 ton, and BI600 for 30–50 ton excavators. Always confirm hydraulic flow and pressure before purchase.
Which stump grinder fits a 5 ton excavator?
The Dipperfox SC400 is designed for 1.5 to 5 ton excavators. For 6–14 ton carriers, use the Dipperfox SC600. For 14–30 ton excavators, the Dipperfox SC850 is the correct fit.
What is the difference between a stump grinder and a stump cutter?
A stump grinder (Dipperfox SC series) uses a cutting wheel to grind stumps into mulch. A stump cutter (TreviBenne WE series) uses a drum or cutter head to crush and grind stumps below ground level. Stump cutters are suited to 11.5–28 ton excavators, while stump grinders cover 1.5–30 tons.
Which grapple saw fits a 10 ton excavator?
For a 10 ton excavator, use the OMEF GS400 (5–10 ton / 400mm cut) or the Powerhand EX 25 with saw attachment (6–12 ton). The OMEF GS250 (3–6 ton) also overlaps at the lower end of this range.
What log grab fits a 20 ton excavator?
For 20 ton excavators, use the Powerhand EX 28 (12–25 ton) or EX 36 (16–25 ton). The OMEF PFIMX 1000 covers 5–10 ton carriers, while the Powerhand EX 40 handles 20–30 ton machines.
Can I use a stump shear on a mini excavator?
No. OMEF stump shears require larger carriers. The ST90 fits 12–20 ton excavators and the ST140 fits 20–35 ton excavators. Mini excavators under 10 tons do not have sufficient hydraulic power or lifting capacity for stump shears.
Which forestry attachment is best for land clearing?
For vegetation and brush clearing, use an OMEF forestry mulcher. For tree removal, use an OMEF Big Inch tree shear or an OMEF grapple saw. For stump removal after felling, use a Dipperfox stump grinder or TreviBenne stump cutter. For handling cut timber, use a Powerhand or OMEF log grab.
What hydraulic flow do I need for a stump grinder?
Hydraulic flow requirements vary by model and excavator size. The Dipperfox SC400 requires lower flow suited to mini excavators, while the SC600 and SC850 need higher flow rates. Always check your excavator's hydraulic specifications against the attachment requirements before purchase.