Who Dipperfox is
Dipperfox is an Estonian manufacturer whose published catalogue is a single product type: excavator-mounted stump grinders, currently the SC400, SC600 and SC850 Pro.
The commercial argument for an attachment rather than a machine is straightforward. Conventional stump removal in Australia usually means a self-propelled wheel grinder that has to be floated to site, insured, financed and kept busy on stump work alone. Dipperfox starts from the opposite premise. The excavator is already on site for the clearing, the trenching or the civil work, it already has an operator in the seat, and the stump is already in front of it. The attachment only has to justify its own cost against the stump hours it produces, and the boom gives it reach into places a wheeled grinder cannot walk to.
The three models and how they relate
The range is a straight progression by carrier class, and each step up buys capacity in three dimensions at once: stump diameter, working depth and torque.
The SC400 is the mini-excavator model at 190 kg, with a 400 mm stump capacity, 590 mm of drilling depth and 13,700 Nm of first-gear torque. It runs on 1.5 to 5 tonne carriers with 12 to 35 kW of engine power and a very wide 30 to 130 L/min flow band. That combination is what puts it through a residential side gate, into a council park or along a suburban verge.
The SC600 is the all-round commercial model: approximately 320 kg, 600 mm stump capacity, 700 mm depth and 16,900 Nm of first-gear torque, on 6 to 12 tonne excavators drawing 65 to 150 L/min at 150 to 250 bar. The 6 to 12 tonne band is the class civil, utility and landscaping contractors mobilise most often, which is why the SC600 covers the widest range of enquiries unless the stump population argues otherwise.
The SC850 Pro is the production machine: 580 kg, 850 mm capacity, 900 mm depth and 43,000 Nm of first-gear torque on 13 to 30 tonne carriers, with a 110 to 230 L/min flow requirement at 180 to 350 bar. The torque figure is the one to notice: at roughly two and a half times the SC600 it is the specification that separates the corridor and plantation model from the two smaller units. The three-model comparison works through the sizing decision in detail.
Dipperfox range by carrier class
- 1.5–5 t: SC400
- 6–12 t: SC600
- 13–30 t: SC850 Pro
The design philosophy in the published features
Three published details define how these machines work and why they are specified differently from a conventional grinder.
The first is the two-speed planetary transmission fitted across all three models. A stump is not a uniform load: the head meets bark, then dense heartwood, then soil-contaminated root flare, then clean timber again. Two speeds let the operator work fast where the material allows and drop into the high-torque gear where it does not, instead of stalling or carrying a single compromise ratio through the whole stump. The published first-gear torque figures are what that low gear delivers, and they are the honest measure of what each model will pull through a hardwood stump.
The second is the reversible double-sided blade. Wear parts on a stump tool are a genuine operating cost, because stumps sit in soil and soil is abrasive. A blade that can be turned once before it is replaced gives two cutting lives per item bought, which in remote Australian work is a logistics benefit as much as a cost one.
The third is the replaceable centre screw. It is a separate, serviceable item precisely because it is the component that takes the concentrated wear at the centre of the cut. Designing it to be swapped on its own, rather than as part of a larger assembly, keeps the head serviceable in the field and the consumable bill predictable. When pricing a Dipperfox, price blades and centre screws together as a set of consumables, the way the wear parts guide suggests. The Dipperfox versus conventional stump grinder comparison sets out where each approach wins, the stump grinder buying guide covers the category, and the stump grinder versus stump cutter comparison explains why grinding and extraction produce different site outcomes.
Buying Dipperfox in Australia
Dipperfox is distributed in Australia by Machinery Specialist from South Windsor in New South Wales. The published flow and pressure windows are narrow enough that carrier matching is a real engineering step rather than a formality.
The SC600, for example, wants 65 to 150 L/min at 150 to 250 bar. Plenty of 6 to 12 tonne excavators in Australia deliver auxiliary flow at the bottom of that band, or deliver it at a pressure set for a hammer rather than a rotary drive. Getting that assessed against your machine’s actual auxiliary circuit, return line and case drain arrangement before the order is written is the difference between a head that produces and one that merely turns. The hydraulic matching guide lists what to measure, and the lift chart guide covers the mass side of the same question.
The distributor is also the channel for demonstrations. A demonstration in dense eucalypt root flare tells you more about production than any torque figure.
Getting a current data sheet
Ask for the factory data sheet for the exact model being quoted, and treat it as final. Weights, flow windows, pressure bands, torque figures and depth ratings can all be revised between production runs, and a data sheet issued against your quotation is specific to the build you will receive. Where anything on this site differs from that sheet, the sheet governs.
Ask the distributor for
- The current factory data sheet for the exact model quoted, including weight, torque, depth and capacity
- Minimum, recommended and maximum hydraulic flow and the operating pressure window for that model
- Whether your carrier needs a case drain, an additional circuit or a return line modification
- A written compatibility assessment against your excavator make, model, year, auxiliary flow and hitch
- Complete attachment mass as configured, including bracket and quick hitch, for the lift chart check
- Blade and centre screw pricing, expected consumption in abrasive soil and parts availability
- A demonstration in representative Australian hardwood stumps, not softwood or a yard test
- What the head requires when a stump is soil-contaminated or contains rock, and how that affects wear
Frequently asked questions
Which Dipperfox suits a typical civil contractor?
The SC600 is the usual answer, because its 6 to 12 tonne carrier band matches the excavator most civil, utility and landscaping contractors already mobilise, and its 600 mm capacity and 700 mm depth cover the majority of subdivision and corridor stumps.
Why does first-gear torque matter more than stump diameter?
Diameter tells you what fits in the head. Torque tells you what the head will actually pull through. In dense hardwood with soil-contaminated root flare, torque is the figure that decides production, which is why the SC850 Pro at 43,000 Nm is a different class of tool from the SC600 at 16,900 Nm.
Do I need a dedicated carrier?
No. The whole design premise is that the excavator already exists and returns to other work when the stumps are done. That is the core of the commercial case against a self-propelled stump machine that has to earn its keep on stump work alone.
What are the consumable items?
The published wear parts are reversible double-sided blades and a replaceable centre screw. Both should be priced, and their expected consumption in abrasive soil discussed, before the order rather than after the first invoice.
Who supports Dipperfox in Australia?
Machinery Specialist, based at South Windsor in New South Wales, distributes Dipperfox in Australia and handles quotations, parts, compatibility assessments and demonstrations.
Dipperfox stump grinders
Dipperfox SC400 stump grinder
The compact Dipperfox for mini excavators: 190 kg, a 400 mm stump capacity and 590 mm drilling depth, built to put stump removal on a carrier that already fits through the gate.
Dipperfox SC600 stump grinder
The mid-range and arguably most versatile Dipperfox: a 600 mm stump capacity on the 6 to 12 tonne excavators that civil, utility and landscaping contractors mobilise most often.
Dipperfox SC850 Pro stump grinder
The production model: 850 mm stump capacity, 900 mm depth and 43,000 Nm of first-gear torque for forestry blocks, highway and rail corridors and large development sites on 13 to 30 tonne carriers.
Get a recommendation, not just a price
Send us your excavator model, hydraulic figures, tree species and typical diameters. We will come back with a carrier-matched configuration and a written specification you can compare against any other quote.