MechMaxx SG30PRO PTO Stump Grinder
#1 in PTOFull review
The pick for a 40 to 100 hp tractor and a lot of stumps. It cuts deep and wide for under $3,000.
Amazon $2,999$2,999
3.8/5
For a utility tractor owner clearing many stumps. It cuts deeper and wider than the 24 in models.
- 8.5 inDepth below grade
- 28 inCutter wheel
- 35 to 80 hpPower
- 44Teeth
Check price at Amazon$2,499
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- A 28 in wheel with 44 teeth cuts a wider path each pass
- 8.5 in below grade
- Slip clutch shaft protects the tractor driveline
Cons
- Needs a tractor of at least 35 hp
- Over 600 lb on the 3-point hitch
The MechMaxx SG PTO family
Every MechMaxx SG PTO model we rank, smallest first. Ratings compare each against its own type.
| Model | Depth below grade | Rating | Price |
|---|---|---|---|
| MechMaxx SG24 PTO Stump Grinder | 6 in | 3.5/5 | $1,449 |
| MechMaxx SG24PRO PTO Stump Grinder | 6 in | 3.3/5 | $1,799 |
| MechMaxx SG28 PTO Stump Grinder (this one) | 8.5 in | 3.8/5 | $2,499 |
| MechMaxx SG30PRO PTO Stump Grinder | 10 in | 4.0/5 | $2,999 |
How it scores
The rating comes from 7 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | SG28 |
|---|---|
| Cutting | |
| Type | PTO, 3-point hitch |
| Depth below grade | 8.5 in |
| Cutter wheel | 28 in |
| Teeth | 44 |
| Power | |
| Tractor | 35 to 80 hp |
| Hitch category | 1 |
| Slip clutch | Yes |
| Build | |
| Weight | 618 lb |
| Warranty | 1 year |
Alternatives in this type
Woodland Mills WG24 PTO Stump Grinder
#3 in PTOFull review
A 24 in compact tractor grinder from a maker with a longer warranty and North American support. It is worth the extra cost for peace of mind.
Woodland Mills $2,055$2,055
MechMaxx TSG61 PTO Stump Grinder
#4 in PTOFull review
The best PTO grinder for a mid-size tractor with rear remotes. Hydraulic swing and 12 in depth make it work like a small commercial machine.
Amazon $3,099$3,099
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