The Baumalight S18 Stump Grinder is built rugged for serious stump removal, combining simple operation with high torque performance. With no electrical connection required, the direct-flow hydraulic drive delivers maximum torque and RPM directly to the cutting head. The 24″ diameter, ¾” thick steel rotor anchors the cutting system and provides the extra momentum needed to power through even the toughest hardwood stumps. Outfitted with 34 planer-style carbide teeth that extend 1-¼” from the rotor, the S18 ensures smooth operation, effective chip clearing, and reduced heat buildup. Teeth are bolt-on for easy replacement, with only 2–3 typically needing replacement at a time. The unique rotor positioning gives the operator a clear view of grinding action, while the heavy-duty fixed deflector directs debris safely away. Designed for efficiency, the self-feeding swing arc, combined with aggressive cutting teeth, helps the S18 chew through stumps faster and cleaner. Key Features No swing cylinder. Full torque to the cutting head ¾” thick, 24″ steel rotor provides stability and momentum 34 bolt-on carbide planer teeth (rotatable for extended life) Cuts up to 10″ below ground, with max 5″ per pass Smooth operation with effective chip clearing and reduced rotor heat Self-feeding swing arc for efficiency Rugged design with relief valve for over-torque protection Clear operator visibility of cutting rotor and debris flow Specifications Recommended HP Range: 25 to 80 HP Hydraulic Flow Range: 15 to 30 GPM Motor Type: Gerotor (S550 Motor) Rotor Size: 24″ Number of Teeth: 34 (planer style, part # S1000) Cutting Depth Below Ground: 10″ Max Cutting Depth Per Pass: 5″ Max Horizontal Cut: 22″ Swing Arc: Self-feeding Over-Torque Protection: Relief valve Hitch: 1″ pivot pins Unit Weight (shipped): 642 lbs The Baumalight S18 Stump Grinder is built rugged for serious stump removal, combining simple operation with high torque performance. With no electrical connection required, the direct-flow hydraulic drive delivers maximum torque and RPM directly to the cutting head. The 24″ diameter, ¾” thick steel rotor anchors the cutting system and provides the extra momentum needed to power through even the toughest hardwood stumps. Outfitted with 34 planer-style carbide teeth that extend 1-¼” from the rotor, the S18 ensures smooth operation, effective chip clearing, and reduced heat buildup. Teeth are bolt-on for easy replacement, with only 2–3 typically needing replacement at a time. The unique rotor positioning gives the operator a clear view of grinding action, while the heavy-duty fixed deflector directs debris safely away. Designed for efficiency, the self-feeding swing arc, combined with aggressive cutting teeth, helps the S18 chew through stumps faster and cleaner. Key Features No swing cylinder. Full torque to the cutting head ¾” thick, 24″ steel rotor provides stability and momentum 34 bolt-on carbide planer teeth (rotatable for extended life) Cuts up to 10″ below ground, with max 5″ per pass Smooth operation with effective chip clearing and reduced rotor heat Self-feeding swing arc for efficiency Rugged design with relief valve for over-torque protection Clear operator visibility of cutting rotor and debris flow Specifications Recommended HP Range: 25 to 80 HP Hydraulic Flow Range: 15 to 30 GPM Motor Type: Gerotor (S550 Motor) Rotor Size: 24″ Number of Teeth: 34 (planer style, part # S1000) Cutting Depth Below Ground: 10″ Max Cutting Depth Per Pass: 5″ Max Horizontal Cut: 22″ Swing Arc: Self-feeding Over-Torque Protection: Relief valve Hitch: 1″ pivot pins Unit Weight (shipped): 642 lbs