SG Series Tractor Mounted Stump Grinders

The SG Series Tractor Mounted, PTO Powered Stump Grinders are economical units designed for small and medium sized tractors (although Model SG-36 is rated for 100 hp maximum), and works well for most jobs. Both models have a maximum cutting depth below ground of 10 inches. There are 2 two-way cylinders on the unit (swing and up and down cylinder), requiring 2 auxilliary hydraulic valves (so you can plug in 4 hoses). The unit operates off of the hydraulic controls you already have on your tractor. If you do not have 2 auxilliary hydraulic valves, you can purchase your own diverter valve, or the optional electric one we have listed in the accessories section below.

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SG Series Tractor Mounted, PTO Powered Stump Grinders

  • Features/Specifications


  • An economical and efficient pto powered stump grinder has a cutting wheel designed for higher productivity and a smooth cutting action


  • Durable carbide tipped cutting teeth are easy to replace


  • Unit is controlled using the hydraulic controls on your tractor. This unit has 2, two-way cylinders so you need to be able to plug in 4 hoses. If you only have 1 hydraulic outlet on your tractor (only able to plug in 2 hoses), then you will either need to supply a mechanical or electric type diverter valve so you can switch the hydraulic flow back and forth between the two cylinders. We have an electric solenoid valve available and listed below. If you want less expensive, a manually operated diverter valve these are less expensive.


  • Hardened bushings used in the major pivot points for increased reliability


  • Grease zerks provided at major pivot points for extended service life


  • Standard needle valve for precise control of cutting feed rate for best cutting action (control of flow rate to swing cylinder), wheel rpm is controlled by pto speed


  • SureFoot stabilizer bar provides solid footing during operation


  • Rubber deflector helps control chips and debris during grinding


  • Parking stand for easy storage is standard


  • Stump Grinder Specifications WARNING: Read and understand the operator’s manual before operation. Stump grinder will put a heavy load on the rear of your tractor. Be sure your tractor is properly counterbalanced. Damage to equipment or personal injury could occur. Never allow children or bystanders around tractor or stump grinder while operating.


  • SG-26A: Hitch Cat. I / SG-36A Cat. I / II


  • Overall Estimated Length (in/cm): SG-26A - 75 Inches / SG-36A - 80 inches


  • Drive System Protection: Slip Clutch on both models


  • Gearbox Rating / Ratio: SG-26A - 60 HP / 1:1.5; SG-36A - 100 HP / 1:1.46


  • Cutting Wheel Construction: Welded 2-piece Laminated Steel


  • Cutting Wheel Thickness (in/cm): SG-26A - 3/4 / 1.91; SG-36A - 7/8 / 2.22


  • Cutting Wheel Diameter (in/cm): SG-26A - 26 / 66; SG-36A - 36 / 91


  • Cutting Wheel Speed: SG-26A - 810 RPM; SG-36A - 788 RPM


  • @ 540 PTO RPM: SG-26A - 5,515 ft. / min.; SG-36A - 7,430 ft. / min.


  • Number of Teeth: SG-26A - 33; SG-36A - 42


  • Cutting Teeth Construction: Carbide Steel Bolt-in both models


  • Cut Height Above Ground (in/cm): SG-26A - 18 / 46; SG-36A - 18 / 46


  • Cut Depth Below Ground (in/cm): SG-26A - 10 / 25; SG-36A - 15 / 38


  • Maximum Horizontal Cut (in/cm): SG-26A - 28 / 71; SG-36A - 33 / 84


  • Swing Arc: 45° for both models


  • Minimum Power / Flow Required: SG-26A - 22-PTO HP; SG-36A - 45-PTO HP


  • Maximum Power / Flow: SG-26A - 50-PTO HP; SG-36A - 100-PTO HP


  • Driveline: SG-26A - PTO / Series 5; SG-36A - PTO / Series 6 PTO


  • Speed: SG-26A - 540 RPM; SG-36A - 540 RPM


  • Weight (lbs): SG-26A - 660; SG-36A - 880


    • SG Series Tractor Mounted Stump Grinders

    Stabilizer Foot On SG Strump Cutters

  • Model WOSG-26: Tractor mounted, pto powered stump grinder, minimum pto hp required is 22, and maximum is 50 hp, maximum horizontal cut is 28 inches (without moving the tractor), cutting depth below ground is 10 inches, wt. is 660 lbs. - Click the link below for current price and availability


    • Order Form

  • Model WOSG-36: Tractor mounted, pto powered stump grinder, minimum tractor hp required is 45 pto hp, and maximum is 100 pto hp, maximum horizontal cut is 33 inches (without moving the tractor), cutting depth below ground is 10 inches, wt. is 880 lbs., has slip clutch protection on driveline - Click the link below for current price and availability


    • Order Form

  • Accessories


  • Part Number 811600: Replacement cutting teeth for SG Series Stump Cutters, box of 12 carbide cutting teeth, includes nuts and washers (Model SG-26 has 30 teeth total, model SG-36 has 39 teeth total) Click the link below for current price and availability


    • Order Form

  • Part Number 811600-6: Replacement cutting teeth for SG Series Stump Cutters, Box of 6 carbide cutting teeth, includes nuts and washers - Click the link below for current price and availability


    • Order Form

  • The manual valve (MP215) and the electric models listed below are selector/diverter valves; a typical installation would be to attach the hoses from the tilt cylinders on the bucket to two of the ports on the front of the valve, and two hoses from the grapple to the other two ports on the front of the valve. The remaining two ports on the valve should connect to the loader valve. When the selector valve is activated (either with the handle on the manual valve, or the switch on the electric valve) the flow can switch back and forth between the tilt cylinders and the grapple cylinders.


  • Electric Selector Valve Kits: The electric selector valve kits include a high quality Italian made Rexroth 6 way valve with a 1 year warranty. Rexroth valves are a high quality valve designed to take the hight pressures in hydraulic systems and to last for many years. The kits also inlclude the valve mounting brackets, fittings, and wiring harness.


    • MP020 Electric Selector Valve Kit, 15 gpm capacity

    Kit Includes Valve And Parts Shown
  • Model MP020: Electric selector valve kit, including solenoid selector valve, 15 gpm capacity, 12 fittings, switch, wiring harness, and mounting brackets, wt. is 16 lbs. - Click the link below for current price and availability


    • Order Form

    Electric Selector Valve Kit, Includes Selector Valve, 12 Fittings, Switch, Mounting Brackets And Hardware

    Kit Includes Valve And Parts Shown
  • Model MP010: Electric selector valve kit, including solenoid selector valve, 24 gpm capacity, 12 fittings, switch, wiring harness, and mounting brackets, wt. is 18 lbs. - Click the link below for current price and availability


    • Order Form

    Model FS9-6765 Single Spool Hydraulic Valve
  • Model WK96765: Single spool hydraulic control valve, Prince series RD2575, maximum of 20 gpm, allows you to connect to any extra open hydraulic outlets and then control one 2-way hydraulic cylinder, wt. is 10 lbs. - Click the link below for current price and availability


    • Order Form

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