Tractor Attachments > Tree Removal | Forestry Equipment

3-Point PTO Stump Grinder


The 3-Point Stump Grinder is mean to the stump but kind to your tractor. Its heavy-duty stabilizer base allows for more efficient grinding performance while reducing stress on the tractor. The PTO-driven cutting system delivers 810 RPM to the rotor and the hydraulic cylinders provide precise horizontal and vertical positioning.

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  • Rugged gear box supports 803 ft/lb. or torque
  • Heavy-duty base provides stable positioning
  • Designed for 25-90 HP tractors
  • 65° swing arc


Model 24” 34”
Part Number 920158 920159
Recommended HP 25-60 HP 45-90 HP
Hydraulic GPM 5-20 GPM 5-20 GPM
Rotor Size 24” 34”
Number of Teeth 58 92
Tooth Construction Carbide steel bolt-in  Carbide steel bolt-in
Cutting Wheel Speed 810 RPM 810 RPM
Cutting Height 25” above ground 25” above ground
Cutting Depth 12” below ground 14” below ground
Maximum Cutting Depth (per pass) 6” 8”
Maximum Horizontal Cut 22” 33”
Swing Arc 65° 65°
Hub Torque 803 ft-lb 803 ft-lb
Over Torque Protection Slip clutch Slip clutch
Hitch Category Cat. I or II Cat. II
Remotes Required (hydraulic) 1 or 2 1 or 2
Requires 12 Volt DC No No
Input Speed 540 540
Weight/Width/Length 700 lb./41”/66.5” 1,000 lb./49”/78”
External Control
Replacement Teeth (each)

Made in the USA

Made in the USA

Erskine is proud to manufacture attachments in our Northern Minnesota state of the art facility.

ISO Certification

ISO 9001:2015 Certification

Our stringent quality control processes are ISO 9001:2015 certified.

USA Steel

USA Steel

We use top grade USA steel to bring you the highest quality, durable attachments.

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Our Promise

Our promise is to deliver quality, reliability and value with every attachment.

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Erskine Attachments, LLC
PO Box 1083
Alexandria, MN 56308 USA