Bobcat SG84 Large Stump Grinder🔵 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 bobcat.com →
Overview
The Bobcat SG84 is a large-capacity stump grinder for full-size Bobcat skid steers with an 84-inch overall width. Designed for heavier commercial stump grinding on lot clearing and tree service work. The larger cutting sweep handles bigger stumps in fewer passes. Available through Bobcat dealers across Canada.
Canada Availability
Available through Bobcat dealers across Canada.
Key Facts
- Model: Bobcat SG84
- Brand: Bobcat
- Type: large hydraulic stump grinder
- Drive: high-flow hydraulic motor
- Mount: Bob-Tach (Bobcat quick attach)
- Application: commercial stump removal, large-frame machines
- Weight: 800–2500 lbs
- Hydraulic flow: 18–35 GPM
✅ Specs sourced from bobcat.com · Last verified: March 2026
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
Designed for Bobcat machines but mounts to any skid steer or CTL with a universal SSQA quick-attach plate.
About Bobcat in Canada
Bobcat is one of the most recognized skid steer brands in Canada, with a dealer presence in every province. Their OEM attachments are engineered specifically for Bobcat machines but use universal SSQA mounts for cross-brand compatibility.
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/bobcat-stump-grinder-sg84/
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 →
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Find a Canadian Dealer
Buy through a Canadian dealer for warranty support, parts, and service. Avoid grey-market imports on high-ticket attachments.
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