Sloped Stump Grinding

Matching the grinder to the gradient

Taking the time to understand the bank

The gradient, the ground and what sits below the stump decide the machine, so we ask for all three before we suggest anything.

If you aren’t sure about which model is best, a phone call with ILH’s team typically covers it.

Our team want to know how steep the bank is and whether it’s grass, clay or made-up ground, what’s at the bottom of it, how the machine gets in, and how many stumps are up there.

From that we match you with the right spec for the job, so you’re not paying for a machine with more power and weight than the bank needs, or struggling with one that can’t hold it.

Garden banks and gentle slopes

On a sloped back garden or a landscaped bank of a few metres, a compact pedestrian grinder is usually enough.

The hill-hold brake on the FSI walk-behind models locks the machine on sloped ground while you position the cutting head, so it isn’t rolling while your hands are on the sweep.

Those machines grind tree stumps to below ground level on the sort of gradient a homeowner can walk up and down comfortably.

They still fit through the gate on the way in, and the pedestrian stump grinder page has the full details.

Embankments and steep slopes

Once the slope is steeper than you’d want to push a machine up, the tracked FSI grinders take over.

Counter-rotating tracks and a low centre of gravity keep the machine planted on a hillside.

The expanding tracks on the diesel models push out from 800mm to 1,150mm for a wider footprint once the grinder is in position.

Hydraulic motor brakes with a counterbalance valve stop the grinder moving on its own while the wheel is cutting.

A two-speed drive with a low range gets the heavier machines up and down the bank under control, and the tracked stump grinder page lists each model.

Getting the operator off the slope

The remote control versions of the tracked FSI grinders let the operator stand wherever the footing is best, uphill of the stump or along the contour.

The machine sits on the gradient under its own brakes, and the handset carries dual joysticks and an emergency stop.

A handset moves the operator off the slope and nothing else. The gradient a tracked grinder can hold is the same from the handlebars or from the top of the bank.

Cuttings and banks beyond a grinder’s reach

Motorway cuttings, reservoir dams and railway embankments run steeper than any stump grinder is built to sit on, and large equipment can’t be walked onto them.

The Energreen tracked carriers are built for that ground.

The stump grinder head mounts on the same chassis as the flail and mulching heads, so the machine that cleared the scrub grinds the remaining stumps in the same visit.

On a standard 55 to 60 degree gradient, the carrier works from a radio handset on flat ground, and a winch anchors it on terrain beyond that rating. Our guide to the Energreen attachments describes the stump grinder head alongside the rest of the range.

What a slope does to the stump grinding

Two stumps of the same species and size take very different amounts of time when one sits on a lawn and the other on a bank.

The ground under the machine makes more of that difference than the timber.

To the machine and the operator

A grinder vibrates hard while the cutting wheel is in the stump. On a gradient, that vibration walks the machine downhill unless something holds it.

Wheeled grinders often get choked, and even then a wheel that loses traction mid-cut can slide the whole unit sideways.

Where the only approach is from below, the operator is holding the whole weight of a hand-guided grinder back on the handlebars while it vibrates.

Wood chips travel downhill too, towards whatever is below, whether retaining walls, a fence, a road or the operator’s legs.

To the ground the stump is left in

A stump left on a bank adds to the trip hazards on uneven ground and obstructs water running down the slope, so rain pools above it and cuts a channel round it.

As a whole stump and its root system rot at the surface, the cavity left behind loosens the soil around it. On a slope, that loose patch is where erosion starts.

Old stumps harbour honey fungus and boring pests, and they take planting space that a bank garden or an estate slope rarely has spare.

None of that has to happen with a grinder matched correctly to the gradient.

It takes the stump and root plate below ground level in one safe visit.

Tell ILH Groundcare your slope and we will match you to the machine that handles it appropriately.

Working a stump safely on a slope

Where to stand the machine

To grind stumps on a bank, steer the machine in from the uphill side wherever the position allows, so the weight of the grinder settles into the slope instead of leaning away from it.

Sweep across the slope, never straight down it, and take shallower passes than you would on the flat, because a wheel that bites too deep on a gradient is the one that shifts the machine.

Tracks hold a wet slope that wheels won’t after rain.

Grind the stump flush and then to a hand’s depth or so below ground level.

Stop there unless something is going over the spot, because on a bank the roots are holding the soil.

Grindings, roots and what goes back

On a slope, the grindings, wood chips mixed with soil, are worth leaving in the hole to fill it.

Leave the remaining roots in the ground. They bind the soil on the bank while they decay and the slow break-down keeps the soil structure open and aerated.

Dig them out with a backhoe or by hand and the slope has to be re-graded and settled. You lose the topsoil as well.

Turf can go straight over the grindings, and a shrub or a new tree can be replanted beside the old root plate once the ground has settled.

A few species will send up suckers from roots left in the bank, so any woody regrowth wants cutting off at the ground.

Who buys or hires kit for slopes

Tree work contractors and councils

A tree removal contract on sloped ground usually includes the stumps.

Tree surgery companies trust us with grinders that can go on the bank the same visit as the felling.

For that work we mostly supply tracked FSI machines, hired for the one job that has a bank in it or bought where the diary is full of tree work on gradients or narrow access locations.

Where a firm specialises in stump grinding services, we’d usually put a tracked machine alongside the large open-ground grinder.

Councils, utility companies and highway contractors run stump removal along verges, cuttings and flood banks, and on those sites nobody should be standing on the gradient behind the machine.

For those teams the answer is a remote control grinder or an Energreen carrier already on the fleet for slope mowing.

Estates, landscapers and the workshop behind it

Estates and landscapers grinding a few stumps a year on a bank garden or a drive edge are better served by hire.

A pedestrian or tracked grinder hired from Cumbernauld arrives serviced with sharp teeth, and we’ll talk you through setting it up on the bank when it’s delivered.

Whatever you run, we also provide service and repair across different brands from our same workshop.

Talk to our team today to learn more.

How it works with ILH

1. Describe the bank – Phone 0141 775 9288 or fill in the contact form and tell us the gradient, the ground, what sits below the stump, the access in and how many stumps.
2. We match the machine – Pedestrian with hill-hold, tracked, tracked with remote, or an Energreen carrier with the stump grinder head, priced for hire or sale. If the bank is beyond a grinder, we’ll say so.
3. See it hold a slope – Watch one work at Cumbernauld before you commit, and bring a photo of the bank.
4. Ready for the bank – The workshop checks teeth, tracks, brakes and the handset before the grinder leaves, then it goes out on our trailer or you collect it from Cumbernauld.
5. Backed on the job – Advice on the phone while you set up on the bank, FSI teeth and parts off the shelf, and the workshop for servicing as long as you run it.

Sloped stump grinding questions

Can stump grinding be done on a hill or slope?

Yes, up to the gradient the machine is built to hold. Pedestrian grinders with hill-hold manage garden banks, and tracked FSI grinders with counterbalance brakes take embankments. An Energreen carrier with a stump grinder head works cuttings of 55 to 60 degrees from a handset, with a winch beyond that.

Does a slope make stump grinding more expensive?

It takes longer per stump, because the machine has to be set up on the bank before the wheel touches wood. If you’re pricing the work, allow more time on a slope than on a lawn and price in the tracked or remote machine where the gradient calls for one.

Do roots grow back after stump grinding?

Most species die once the stump is ground below ground level and the roots decay in the soil. Willow, poplar, cherry and sycamore will sucker from the remaining roots for a season or two. Cut the regrowth off at the ground each time and it exhausts itself.

Tell us the gradient and we will provide a free quote

Give us the gradient and the ground, and we’ll tell you which grinder will hold it, whether to hire or buy, and whether the operator can stay on the machine or should stand on the flat with a handset.

ILH has been a family business and arb machinery specialist since 2007, the Energreen dealer for Scotland and an FSI dealer that ran the grinders on its own jobs for years before selling them.

Phone 0141 775 9288 or use the contact form, and we’ll reply with the machine for the bank and a price for it.