Contract slashing, council verges and firebreaks punish a slasher in ways pasture topping never will. Hidden stumps, rocks, rubbish and woody regrowth hit the blades every day, and the machine runs for hours at a time behind a bigger tractor.
That’s the work heavy duty slashers are built for. This guide explains what actually makes a slasher heavy duty, how the Fieldquip XHD Series is built, and how it compares with the contractor slashers Australian operators most often shortlist.
The short version: a heavy duty slasher has a gearbox rated well above typical farm models, a deck of 6mm or more and a stronger blade carrier. The Fieldquip XHD Series has a 150hp gearbox and a 6mm galvanised monocoque deck, in 1.8m ($15,949 inc GST) and 2.15m ($19,249 inc GST) widths.
Fieldquip XHD: specs, pricing and options
| Model | Working width | Tractor HP | Gearbox | Weight | RRP (inc GST) |
|---|---|---|---|---|---|
| XHD72C | 1.8m (6′) | 50–150hp | 150hp | 700kg | $15,949 |
| XHD84C | 2.15m (7′) | 70–150hp | 150hp | 880kg | $19,249 |
Prices are RRP from the Fieldquip retail price list effective 1 March 2026 (PDF) and may change without notice. Confirm current pricing with Fieldquip before purchase.
Standard on every XHD:
- 150hp gearbox with friction clutch
- Heavy-duty monocoque pressed galvanised 6mm deck plate
- 540rpm PTO driveshaft
- Pivoting headstock with chain backstays
- Adjustable height, high-clearance skids
- Heavy-duty spring steel blade carrier
- Heavy-duty swing-back lift blades
- Front and rear chain guards
| Option | RRP (inc GST) |
|---|---|
| Rear lights | $607 |
| Tool box | $1,622 |
| Additional wheel kit (XHD72) | $1,690 |
| Sign rack, complete with 4 signs | $2,442 |
What makes a slasher heavy duty?
“Heavy duty” is printed on a lot of slashers. These are the specs that actually back it up:
- Gearbox rating. A contractor slasher needs a gearbox rated well above the tractor’s horsepower, so it can absorb shock loads from stumps and rocks. Farm slashers typically run 75–100hp gearboxes; heavy duty machines run 130hp, 150hp or more.
- Deck thickness and construction. Heavy duty decks start at 6mm. A monocoque (one-piece pressed) deck is stiffer than a flat plate with welded sides, and resists flexing and cracking under impact.
- Blade carrier and blades. A spring steel blade carrier and swing-back blades let the blades fold back on impact, instead of transferring the full shock to the gearbox.
- Driveline protection. A good friction clutch slips under overload, protecting the gearbox and the tractor.
- Ground clearance. High-clearance skids keep the deck riding over obstacles rather than digging in on uneven verges.
- Weight. More steel means a stronger machine. Comparing weight per metre of cutting width is a quick way to see how heavily a slasher is built.
For council and roadside work, practical extras also matter: rear lights for road travel, a sign rack for traffic management, and a tool box for blades and tools on site.
How the XHD compares with other heavy duty slashers in Australia
| Brand / model | Width | Min tractor HP | Gearbox | Deck | Weight (kg per metre) |
|---|---|---|---|---|---|
| Fieldquip XHD72C | 1.8m | 50hp | 150hp | 6mm galvanised monocoque | 700kg (about 390kg/m) |
| Fieldquip XHD84C | 2.15m | 70hp | 150hp | 6mm galvanised monocoque | 880kg (about 410kg/m) |
| Silvan Shireboss 145 (1.8m) | 1.8m | 75hp | 130hp | 6mm | 648kg (about 360kg/m) |
| Silvan Shireboss 145 (2.1m) | 2.1m | 75hp | 130hp | 6mm | 790kg (about 375kg/m) |
| Howard EHDE210 | 2.1m | 85hp | Market-standard gearbox | — | 950kg (about 450kg/m) |
| Howard EHD | 1.8m+ | — | Fabricated steel, no HP limit | — | — |
| John Berends Warrior (1.75m) | 1.75m | 100hp | Unlimited-HP Italian gearbox | — | 700kg (about 400kg/m) |
| John Berends Warrior (2.05m) | 2.05m | 100hp | Unlimited-HP Italian gearbox | — | 805kg (about 395kg/m) |
| Woods Brushbull (extreme duty) | 1.5–2.13m | — | Up to 210hp | Galvanised | — |
How they line up:
- Gearbox. The XHD’s 150hp gearbox sits above the Shireboss at 130hp. The Howard EHD and John Berends Warrior go further with unlimited-HP gearboxes, and the extreme-duty Woods Brushbull runs up to 210hp with a 100mm cutting capacity and a 6-year gearbox warranty.
- Entry point. The XHD72C is rated from 50hp, lower than the Shireboss (75hp), Howard EHDE210 (85hp) and Warrior (100hp). That makes the XHD the contractor-grade option for operators running mid-size tractors.
- Build. By weight per metre, the XHD sits in the same class as the Warrior and above the Shireboss. The Howard EHDE210 is the heaviest per metre in this group.
If you run 150hp-plus tractors in the worst conditions every day, an unlimited-HP machine like the Howard EHD or Warrior is worth a look. If you want contractor-grade strength behind a 50–150hp tractor, with roadside options and a published RRP, the XHD is built for exactly that job.
Frequently asked questions
What is a heavy duty slasher?
A heavy duty slasher is a rotary slasher built for contract, council and roadside work. It has a higher-rated gearbox (usually 130hp or more), a thicker deck of 6mm or more, a stronger blade carrier and more weight per metre than a farm slasher.
What gearbox rating do I need for contract slashing?
Choose a gearbox rated at or above your tractor’s horsepower, with extra margin for impact loads. The Fieldquip XHD has a 150hp gearbox and suits 50–150hp tractors (70–150hp for the 2.15m model).
Can I run a heavy duty slasher on a 50hp tractor?
Yes, with the right model. The Fieldquip XHD72C is a 1.8m heavy duty slasher rated from 50hp, while many contractor slashers start at 75–100hp.
What does an unlimited horsepower slasher gearbox mean?
It means the manufacturer doesn’t set an upper tractor HP limit for the gearbox. Howard’s EHD and John Berends’ Warrior use gearboxes sold this way. Other parts of the driveline, like the PTO shaft and clutch, still have limits.
What options do I need for roadside slashing?
For road travel and traffic management, look for rear lights and a sign rack. The Fieldquip XHD offers rear lights ($607 inc GST), a sign rack with 4 signs ($2,442), a tool box ($1,622) and an extra wheel kit for the XHD72 ($1,690).
How much does a heavy duty slasher cost in Australia?
Heavy duty single rotor slashers generally cost from about $14,000 to $20,000 or more, depending on width and gearbox. As of 1 March 2026, the Fieldquip XHD72C (1.8m) has an RRP of $15,949 inc GST and the XHD84C (2.15m) $19,249 inc GST.
See the XHD range
Full specifications and enquiry details are on the XHD Series product page. To find stock near you, use Find a Dealer or call Fieldquip on 1800 454 150.
Need something wider? See our Gearmower 3-rotor slashers (3.0m and 3.6m) or the full single rotor slasher guide. For farm work, the LE and XLE may be the better fit.
Prices are recommended retail prices (RRP) in Australian dollars, including GST, from the Fieldquip retail price list effective 1 March 2026. Prices exclude freight and may change without notice. Confirm current pricing with Fieldquip or your local dealer before purchase. Photos may show optional equipment.
Competitor specifications and prices are drawn from publicly available manufacturer and dealer information as at [publish date] and may have changed since. Check current details with the relevant manufacturer or dealer. All brand names and trademarks belong to their respective owners; Fieldquip is not affiliated with or endorsed by them.
This article is general information only. Machine suitability and performance depend on your tractor, terrain and operating conditions. Always operate equipment within its rated capacity and in line with the operator’s manual.
