When to Replace Stump Grinder Teeth
24/06/2025
Why does Tooth Maintenance Matter
1 - Performance & Efficiency
Sharp, well-maintained teeth cut faster and cleaner. Worn or dull teeth slow down grinding, increasing job time and fuel usage
2 - Machine Health & Longevity
Dull, chipped, or uneven teeth place extra strain on your grinder's engine and cutting wheel. Replacing them on time prevents downstream mechanical wear and saves on overall maintenance costs
3 - Safety
Damaged teeth can shatter or cause uneven vibrations, posing serious hazards. Regular replacement ensures secure, stable operation .
How Often to Change the Teeth
It will depend on the following:
Usage frequency (how often you grind)
Environment condition (presence of rock, sand, dirt)
Tooth type/material (e.g., hard-tipped carbide)
Typical Lifespan Estimate
5–15 operating hours is the average lifespan for most stump grinder teeth under standard conditions
Cutting through rocky or abrasive materials shortens this lifespan.
Titan Pro teeth are tipped with mining-grade tungsten carbide, which is 10 times harder than steel - the same material which is used to drill through bedrock!
Practical Tooth-Check & Replacement Schedule
1. Inspect before & during each job
Look for wear, chips, cracks, or unevenness.
2. Swap when...
Cutting slows noticeably
Teeth show visible damage
Excessive vibration occurs
3. Follow engine/manual intervals
While the engine manual doesn’t specify cutter teeth replacement, Honda-based engines recommend routine checks every 50 hours and more in dirty conditions a good trigger for tooth inspection too.
Maintenance Tips to Maximise Tooth Life
Clean debris such as (sap, chips) immediately after use to reduce corrosion and wear
Avoid grinding hard surfaces like gravel or concrete, stick to wood and soil.
Store in a dry area to prevent rust, especially on carbide tips
Sample Maintenance Timeline for Occasional Users
| Usage Pattern |
Inspect Every |
Replace Every |
| Light (1hr/week) |
Monthly or 5hrs |
10–15hrs (2–3 months) |
| Heavy/Pro |
After each job |
5–10hrs (every few weeks) |
Adjust based on cutting speed and signs of wear.
Step-by-Step: How to Replace the Teeth on a Titan Pro Grizzly
1. Stop engine & remove spark plug to prevent accidental start (safety first)
2. Lift grinder housing to reveal the cutting wheel
3. Unbolt old teeth from the wheel
4. Fit new teeth Titan Pro offers sets of 12 genuine carbide-tipped teeth for the 15?HP Grizzly model https://www.titan-pro.co.uk/p/4989/stump-grinder-teeth
5. Torque bolts to spec, reposition housing, reattach spark plug
6. Test-run carefully to confirm even cutting and stable operation
Please see the below a link to our video for guidance on how to change the teeth
https://youtu.be/NWN7Ei3TdIY
Proper tooth maintenance ensures your stump grinder stays razor-sharp, efficient, and safe—making every job quicker and cleaner. If you like help please call us on 01258 489161 or email us at sales@titan-pro.co.uk