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
The MechMaxx SG30PRO PTO Stump Grinder is the better stump grinder overall, rated 4.0 to 3.8. The MechMaxx SG30PRO PTO Stump Grinder leads on depth, power and height or wheel. The MechMaxx SG28 PTO Stump Grinder wins on price. The MechMaxx SG28 PTO Stump Grinder costs $500 less ($2,499 vs $2,999).
MechMaxx SG28 PTO Stump Grinder
#2 in PTOFull review
For a utility tractor owner clearing many stumps. It cuts deeper and wider than the 24 in models.
Amazon $2,499$2,499
Prices were last checked November 3, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the MechMaxx SG30PRO PTO Stump Grinder for depth (10 in below grade vs 8.5 in below grade), power (tractors up to 100 hp vs tractors up to 80 hp) and height or wheel (30 in cutter wheel vs 28 in cutter wheel).
- Choose the MechMaxx SG28 PTO Stump Grinder for price ($2,499 vs $2,999).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every PTO stump grinder; a clear win is highlighted. How we rank explains each one.
| Factor weight | MechMaxx SG30PRO PTO Stump Grinder | MechMaxx SG28 PTO Stump Grinder |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Price 25% | 40 $2,999 | 54 $2,499 |
| Depth 20% | 100 10 in below grade | 79 8.5 in below grade |
| Height or wheel 10% | 100 30 in cutter wheel | 80 28 in cutter wheel |
| Power 10% | 100 tractors up to 100 hp | 71 tractors up to 80 hp |
| Teeth 10% | 100 44 teeth | 100 44 teeth |
| Features 15% | 50 slip clutch | 50 slip clutch |
| Warranty 10% | 33 1-year warranty | 33 1-year warranty |
Specifications
| MechMaxx SG30PRO PTO Stump Grinder | MechMaxx SG28 PTO Stump Grinder | |
|---|---|---|
| Cutting | ||
| Type | PTO, 3-point hitch | PTO, 3-point hitch |
| Depth below grade | 10 in | 8.5 in |
| Cutter wheel | 30 in | 28 in |
| Teeth | 44 | 44 |
| Power | ||
| Tractor | 40 to 100 hp | 35 to 80 hp |
| Hitch category | 1 and 2 | 1 |
| Slip clutch | Yes | Yes |
| Build | ||
| Weight | 641 lb | 618 lb |
| Warranty | 1 year | 1 year |