When selecting a stump grinder to pair with a tractor’s PTO, you want a balance of cutting power, reliability, and compatibility. This guide highlights top PTO-powered stump grinders designed for 15–60 HP tractors, plus accessories that can improve versatility and ease of use. Whether you’re clearing a forestry lot or maintaining a residential property, these options cover heavy‑duty performance and practical attachment features.
| Product | HP Range / Connection | Cutting Depth / Wheel | Teeth / Features |
|---|---|---|---|
| MechMaxx SG24 Green (Orange) | 15–45 HP Cat 1 | 6″ cutting depth, 24″ flywheel | 34 carbide teeth; 3-point hitch; includes PTO drive |
| MechMaxx SG24 Green (Green) | 15–45 HP Cat 1 | 6″ cutting depth, 24″ flywheel | 34 carbide teeth; 3-point hitch; PTO powered |
| MechMaxx TSG61 | 35–60 HP | 18″ above ground, 12″ below ground | 16 carbide teeth; hydraulic cylinders; 24″ wheel |
| TERGTIRY PTO Extender | Compatible with up to 70 HP | N/A | 1 3/8″ shafts; 6-spline; easy installation |
| TPEngine Teeth Pack | Universal compatibility | N/A | 10 teeth with 5/8″ nuts; for Woods/Shaver/Baumalight styles |
MechMaxx SG24 34-Tooth PTO Stump Grinder
The SG24 model from MechMaxx is a 3-point hitch attachment designed for tractors in the 15–45 HP range. It runs off a PTO drive shaft at 540 RPM and delivers up to 1200 N·m of torque for efficient power transfer. The 24″ flywheel features 34 tungsten carbide teeth for robust cutting, capable of removing roots up to 6 feet deep. A compact black utility box above the grinder provides space for tools or manuals, contributing to on-site efficiency. Suitable for forestry, gardens, parks, orchards, and farm work.
MechMaxx SG24 Green (Green) 34 Teeth Stump Grinder
This variant mirrors the SG24 design with the same 24″ flywheel, 34 carbide teeth, and 6″ cutting depth. It uses a 3-point hitch for straightforward attachment to 15–45 HP Cat 1 tractors and loaders. The included PTO connection provides reliable power transfer (540 RPM input, up to 1200 N·m torque), and the grinder is well-suited for transforming tree roots into mulch or decorative ground cover. The housing includes a small storage area for instructions or small tools to support fieldwork.
MechMaxx TSG61 PTO Hydraulic Stump Grinder
The TSG61 uses hydraulic cylinders to position a milling head, offering flexible cutting options directly from the tractor cab. Equipped with a 24″ milling wheel carrying 16 carbide teeth, this model is designed for heavy-duty operation under demanding conditions. It supports a cutting depth of 18 inches above ground and 12 inches below ground, enabling deep root removal and handling varied stump sizes. This unit targets heavier property clearing tasks and professional maintenance applications.
TERGTIRY PTO Extender For Tractors
The TERGTIRY PTO extender is designed to fit 6-spline, 1 3/8″ PTO shafts and is suitable for tractors up to 70 HP. It provides a practical compatibility option when matching a grinder with a specific PTO configuration. The extender is built from sturdy materials, and installation guidance emphasizes tightening connections and applying grease to reduce wear. This accessory is beneficial for users who need longer reach or to adapt existing PTO configurations to compatible stump grinding attachments.
10 Cast Teeth Pack For Woods/Shaver Style Stump Grinders
This set includes 10 stump grinder teeth, compatible with multiple popular brands like Woods SG100, Shaver SC50/SC25/SC30, and Baumalight/Bradco lines. Each tooth features a 5/8″ locking nut and universal 2-1/2″ length with a 3/4″ wide head. These teeth are designed to improve cutting efficiency and help you complete stump work more quickly, especially on tougher wood fibers or larger stumps.
Tallew 12 Pack Stump Grinder Teeth
The Tallew kit includes 12 sets of 2-7/8″ long by 3/4″ wide teeth, designed to fit Woodland Mills and similar equipment. Each tooth uses a 5/8″ locking nut and a 2-1/2″ length for consistent performance. The package size and durability make it suitable for regular replacements, ensuring consistent cutting efficiency and reduced downtime on job sites.
Buying Guide
- Tractor compatibility: Match the PTO horsepower range (HP) and the 540 RPM input with the grinder’s requirements. Cat 1 three-point hitch is common for lighter-duty models, while hydraulic head control suits heavier setups.
- Cutting depth and wheel size: Deeper cutting depths are better for large stumps, but require more power and stability. A 24″ wheel with 34 carbide teeth provides robust performance for many residential and light commercial tasks.
- Tooth design and durability: Carbide teeth (especially tungsten carbide) last longer and cut more cleanly through tough wood. Availability of replacement teeth and diverse kits improves long-term maintenance options.
- Hydraulic vs. PTO drive: PTO-driven grinders are straightforward and reliable for standard work; hydraulic-head grinders offer precise positioning from the cab, which can save time on complex stumps.
- Accessory options: PTO extenders and extra tooth packs increase versatility and reduce downtime. Ensure compatibility with your existing PTO shaft and mounting configuration.
- Weight and mounting: Heavier units provide stability on uneven ground but may require a stronger three-point hitch and careful ballast management.
- Safety and maintenance: Regularly inspect teeth, guards, and PTO connections. Follow manufacturer guidelines for lubrication, tightening torque, and hydraulic fluid checks if applicable.
- Service availability: Consider brands with accessible spare parts and replacement teeth, since stump grinders see frequent wear in tough ground conditions.