HLA Heavy-Duty Stump Grinder for Skid Steers🔵 Mid
🟡 High Flow
⚠ High-flow machine required
✓ Compatible with high-flow CTL
⚠ Too heavy for most small-frame machines
✓ Best on mid-frame or large-frame machines
View on hlaattachments.com →
Overview
HLA Attachments makes a heavy-duty stump grinder for full-size skid steers, featuring a high-torque hydraulic drive and carbide-tooth grinding wheel for efficiently grinding large-diameter hardwood stumps. Ontario-manufactured by Horst Welding to handle the demands of commercial tree service and municipal tree removal operations across Canada. Available through HLA's Canadian dealer network.
Canada Availability
Available in Canada through HLA Attachments dealers. Ontario-manufactured by Horst Welding.
Key Facts
- Type: heavy-duty hydraulic stump grinder
- Manufacturer: Ontario-made by Horst Welding
- Application: large-diameter stumps, hardwood removal, commercial tree service
- Drive: high-torque hydraulic motor
- Mount: universal skid steer quick attach (SSQA)
- Weight: 800–2500 lbs
- Hydraulic flow: 18–35 GPM
Is This Right For You?
✅ Buy if…
- You grind hardwood stumps over 18 inches diameter — large oaks, maples, or elms that standard grinders struggle with
- Production tree service or land clearing where stump count and diameter are high
- Your large-frame skid steer has the hydraulic flow and lift capacity to run a heavy grinder effectively
⛔ Skip if…
- Most of your stumps are under 12 inches — a standard grinder completes those faster with less wear
- Your machine is compact or mid-frame — a heavy grinder may exceed carrier capacity
🔍 Also consider…
- Standard stump grinder for typical residential and light commercial stump removal
- Side-shift stump grinder if you work near obstacles frequently
🔧 Machine Compatibility
Compatible with all skid steer brands and compact track loaders via universal SSQA quick attach. Mid-frame machines (S450–S650 class) are the most common fit.
About HLA in Canada
HLA Attachments is an Ontario-based manufacturer that designs and builds attachments in Waterloo, ON, with a dealer network spanning all provinces. Backed by a Canadian warranty and local parts availability, HLA is one of the most trusted names on Canadian job sites.
Care & Maintenance
- Check carbide tooth torque before every use — loose teeth eject at high RPM and can cause catastrophic cutterhead damage or injury
- Replace carbide teeth in matching pairs (left-right balance) to maintain cutterhead balance and reduce destructive vibration
- Grease cutterhead drive spindle bearings after every 4 hours of operation — grinding generates significant heat and vibration that accelerates lubricant breakdown
- Clean wood chips and soil from the motor ventilation shroud and belt drive area after every use — blocked ventilation causes motor overheating
- Inspect hydraulic motor fittings for loosening after hard-material sessions — the constant vibration of grinding loosens threaded fittings progressively
How to Connect
- Attach stump grinder using Bob-Tach
- Connect high-flow hydraulic couplers
- Run wheel at idle to verify direction (wheel should spin into stump, not away)
- Clear 10m radius of bystanders before grinding
⚠ Safety NoteHigh-flow required (20-40 GPM). Always wear face shield and hearing protection.
🪵 Before You Buy a Stump Grinder
Virtually all skid steer stump grinders require high-flow hydraulics — and carbide tooth condition is a major operating cost factor.
- Confirm your machine delivers 15–35 GPM high-flow Check your flow spec →
- Match cutterhead width to your typical stump diameter range
- Factor in carbide tooth replacement cost — budget $300–800/season for regular use
Find a Stump Grinder Dealer →
Complete the job — you might also need:
✅ Last checked: March 2026
Source: skidsteerattachments.ca/catalog/stump-grinders/hla-stump-grinder-heavy/
Ready to Buy? Check These First
⚙️
Confirm Machine Fit
Verify your machine's hydraulic flow meets this attachment's requirements before ordering. High-flow attachments need 25–45+ GPM — standard flow machines won't run them properly.
Check your machine's flow →
🇨🇦
Find a Canadian Dealer
Buy through a Canadian dealer for warranty support, parts, and service. Avoid grey-market imports on high-ticket attachments.
Find dealers by province →
