A PTO-powered stump grinder is worth considering if you already own a compatible tractor, have repeated stump work and can reach the stumps safely without damaging the property. For a few backyard stumps—or a site your tractor cannot safely enter—compare rental and contractor quotes before buying. Horsepower alone does not establish compatibility: the tractor must also feed and control the cutter as the specific attachment requires.
The first choice is between a grinder fed by tractor travel and one with a hydraulically swept cutting head. Use the checker to identify the published requirements for the models below; it cannot approve a complete tractor-and-attachment installation.
Choose a model and enter the tractor details requested; the result flags the fit checks still needed.
Tractor Fit Check
Use PTO output, not engine horsepower. Blank means unknown.
WG24: Fit Not Yet Established
PTO horsepower and PTO arrangement are unknown.
Published range: 15–45 PTO hp at 540 rpm. Independent PTO is preferred for feeding the cut with tractor travel.
Still confirm hitch, lift capacity, ballast, driveline setup, access and safe operation with the supplier and manuals.
Published Model Limits and Caveats
| Model | PTO / Depth | Feed and Fit |
|---|---|---|
| WG24 | 540 rpm 15–45 PTO hp 6 inches | Tractor travel; independent PTO preferred. |
| 1P24 | 540 rpm PTO hp: — 6 inches | Hydrostatic drive required; no remotes needed. Some short-arm subcompacts need an extension kit. |
| 3P24 | 540 rpm PTO hp: — 8 inches | Hydraulic lift and 65-degree sweep. Two remotes normally; one set with optional valve kit. Not quick-hitch compatible. |
Source: Woodland Mills and Baumalight manufacturer specifications cited in the article, checked October 3, 2026. — means no horsepower figure is supplied here, not no requirement.
Choose the Cutter Feed System First
Tractor-fed grinders need precise, slow travel while maintaining the specified PTO speed. Woodland Mills says its WG24 works best with a PTO independent of the transmission because the tractor pulls the grinder through the stump. Baumalight explicitly requires hydrostatic drive for its gravity-fed 1P24, which needs no hydraulic remotes. An attachment fitting your hitch does not establish transmission compatibility. These are model-specific requirements. (WG24 requirements, 1P24 requirements)
Hydraulic-sweep grinders use tractor hydraulics to position the cutting head while the PTO supplies cutting power. Baumalight’s 3P24 has a stabilizing base, hydraulic lift and a 65-degree sweep without moving the tractor. It normally requires two hydraulic remotes; an optional valve kit allows operation with one set. This design is worth investigating when repeated tractor repositioning would be awkward, but it adds hydraulic compatibility checks and possible setup costs. (3P24 controls and specifications)
All three models below specify 540 rpm PTO input. These examples show design differences, not a performance ranking. The published specifications were checked October 3, 2026.
| Model | Cutter Feed | Below-Grade Depth | Main Fit Check |
|---|---|---|---|
| Woodland Mills WG24 | Tractor travel | 6 inches | 15–45 PTO hp; independent PTO preferred |
| Baumalight 1P24 | Tractor travel, gravity feed | 6 inches | Hydrostatic drive required |
| Baumalight 3P24 | Hydraulic lift and sweep | 8 inches | Remotes or optional valve kit |
The 1P24 may require an extension kit on some short-arm subcompact tractors. The 3P24 is not quick-hitch compatible. Those details can rule out an otherwise plausible match or add equipment to the purchase.
Verify PTO Output, Hitch Geometry and Controls
Ask the supplier to confirm compatibility against your exact tractor model and hitch configuration, not just its advertised engine horsepower.
Compare the tractor’s PTO output with the attachment’s PTO horsepower requirement, including its maximum power rating. The WG24’s published range is 15–45 PTO hp. The figures provided here do not establish horsepower ranges for the two Baumalight models; confirm those with the supplier rather than applying the WG24 range to them.
For a tractor-fed grinder, establish whether you can achieve the required feed speed without slowing or interrupting the PTO. The WG24’s preference for independent PTO and the 1P24’s hydrostatic-drive requirement are different checks, not interchangeable descriptions of tractor suitability.
For the hitch, verify category, quick-hitch fit, lift capacity at the attachment’s working distance and any ballast requirements against the tractor manual. Do not substitute shipping weight for operating weight. A grinder that can be lifted still needs the correct geometry and a stable tractor configuration.
For a hydraulic-sweep model, confirm remote count, flow, pressure, couplers and any required valve kit. On the 3P24, having one remote set means investigating the optional valve kit—not assuming the standard arrangement will work.
Finally, verify driveline shaft length, overlap and clearance for the actual installation. Woodland Mills’ WG24 operator’s manual includes shaft-measuring and trimming procedures, warns against insufficient overlap and requires slip-clutch setup. Clutch plates can stick after inactivity, defeating overload protection. Have the supplier handle setup if you cannot confidently follow the model-specific procedure.
Match Tractor Access and Cutting Depth to the Job
Measure the route for the tractor with the grinder attached, including turns and space to line up with the stump. A narrow attachment does not make the tractor narrower. A tractor-fed model also needs room for its cutting passes, not merely enough space to park beside the stump.
Do not confuse wheel diameter with stump-diameter capacity or below-grade reach. The WG24’s 24-inch wheel has a published maximum grinding depth of 6 inches. Its manual specifies successive straight-forward passes, not a generic side-to-side sweep. The 3P24’s hydraulic sweep is a different operating method.
Choose depth around the finished job. Removing a mowing obstruction is different from preparing a footing or clearing a planting hole. Grinding to a stated depth does not extract the entire root system. If construction requires buried wood to be removed, establish that scope before choosing equipment; an attachment’s below-grade rating is not a promise of complete excavation.
Cleanup also changes the scope. Iowa State Extension recommends removing grinding shavings before adding topsoil and replanting. Hauling and filling are commonly separate contractor services. Compare the same finished condition when weighing DIY work against a contractor quote.
Compare Total Ownership Cost With Matching Quotes
On October 3, 2026, Woodland Mills’ U.S. page displayed a US$1,895 sale price plus US$199 flat-rate shipping for the WG24: US$2,094 before tax, accessories or setup. The page also warns that remote or rural delivery can cost more. This is an advertised equipment price, not a contractor-invoice benchmark. (Published price and shipping)
Calculate ownership cost as the attachment purchase plus delivery, tax, setup, required tractor upgrades, teeth, lubrication, fuel, repairs, your time and cleanup, minus a conservative resale allowance. If you need to acquire the tractor too, include that cost.
The published attachment price alone cannot establish a break-even stump count. Setup requirements differ between tractors, replacement parts and operating costs vary, and the amount of wood and cleanup differ between jobs. No reliable universal stump count at which buying wins is provided here.
Compare your ownership total with written quotes for all planned stumps at the same depth and cleanup scope. A grinding-only quote is not equivalent to DIY work that includes hauling chips, bringing in soil and restoring the surface. Our rental-versus-hiring comparison covers the other options.
Unresolved Safety or Stability Rules Out Buying
Keep PTO shields and cutter guards intact. Never step over a rotating shaft. Before dismounting to clear, inspect or adjust equipment, disengage the PTO, shut down the tractor, remove the key and wait for all movement to stop. Penn State’s PTO safety guidance explains the shaft hazard; the WG24 manual also requires disconnecting the PTO shaft before cleaning or maintenance.
Locate buried utilities before grinding. The WG24 manual prohibits grinding stumps containing embedded nails, wire or metal fragments. Do not treat extra horsepower as a solution to an unsafe cutting location.
If access, stability or safe cutter visibility remains unresolved, get a contractor to assess the site before buying. For an otherwise suitable setup, use our stump-grinder setup guide alongside—not instead of—the tractor and attachment manuals.