Get 6 FREE replacement teeth when you order the GP40 today
Product variant with selected options does not exist!
Engineered for operators who want maximum grinding performance with minimal complexity, the S18 runs on a direct flow hydraulic design that delivers full torque and RPM straight to the cutting head, with no power loss to swing cylinders or electrical systems, for faster grinding and excellent control in demanding conditions.
25-80HP Carrier Size 34 Carbide Teeth 22IN Max Horizontal Cut 642LBS Shipping Weight 1-Year Warranty Manufacturer's warranty covers parts and labor from date of purchase. 5-7 Day Shipping Fully trackable, fully insured shipping on every order. (800) 260-8983 Questions? A real person picks up and walks you through it. Features & Benefits Carbide Planer Teeth 34 bolt-on carbide teeth share the workload, allowing each tooth to make smaller cuts. This improves cutting efficiency, extends tooth life, and reduces replacement costs. Direct Hydraulic Drive Simple, rugged hydraulic system maximizes torque and RPM without electrical connections, increasing reliability and reducing downtime. Heavy 3/4" Steel Rotor The thick steel rotor provides strength, rigidity, and added momentum, allowing the grinder to power through tough hardwood stumps without flexing. Enhanced Chip Clearance Teeth extend 1¼ inches from the rotor to prevent plugging, improve chip evacuation, reduce heat buildup, and protect both teeth and rotor. Self-Feeding Action Designed to naturally regulate cutting pressure, providing smooth grinding performance and reducing operator fatigue. Slip-Free Protection Integrated hydraulic relief valve protects the system from sudden shock loads caused by rocks or buried debris. Full Specifications Mount Type Skid Steer, 1" Pivot Pin Recommended Carrier Size 25–80 HP Hydraulic Drive Direct Flow (Gerotor Motor) Hydraulic Remotes Required 1 Electrical Requirement None Rotor Size 24" Diameter Rotor Thickness 3/4" Heavy Steel Number of Teeth 34 Planer-Style Carbide Tooth Part Number S1000 Tooth Chip Clearance 1¼" Extension Cutting Depth Below Ground Up to 10" Max Cutting Depth Per Pass 5" Max Horizontal Cut 22" Swing Arc Self-Feeding Over Torque Protection Hydraulic Relief Valve Shipping Weight 642 lbs Included Replacement Teeth 6 Free, Onboard Storage Pins Greaseable, Zinc-Plated Warranty 1 Year, Parts & Labor Motor Option — S450 12–20 GPM Motor Option — S550 15–30 GPM Motor Option — S650 20–40 GPM Buy Direct From Sullivan Equipment Co Manufacturer's warranty included · Fully insured shipping · A real person answers the phone No Sales Tax At CheckoutPlease allow 5-7 days for shipping. Once your order ships, we'll send a tracking number to the email address on file. If you have any questions regarding your order please call 800-260-8983 or email support@sullivanequipmentco.com.
This product has a 1 year warranty from the date of purchase. This warranty covers parts and labor, but does not cover misuse, negligence, consequential damage or expenses including loss of profit.
If you have any questions regarding your warranty please call 800-260-8983 or email support@sullivanequipmentco.com.
Corporate Office: (800) 260-8983
Business Hours: Monday - Saturday 6AM-9PM CST
Email: support@sullivanequipmentco.com
© 2026, Sullivan Equipment Co .
Engineered for operators who want maximum grinding performance with minimal complexity, the S18 runs on a direct flow hydraulic design that delivers full torque and RPM straight to the cutting head, with no power loss to swing cylinders or electrical systems, for faster grinding and excellent control in demanding conditions.
25-80HP Carrier Size 34 Carbide Teeth 22IN Max Horizontal Cut 642LBS Shipping Weight 1-Year Warranty Manufacturer's warranty covers parts and labor from date of purchase. 5-7 Day Shipping Fully trackable, fully insured shipping on every order. (800) 260-8983 Questions? A real person picks up and walks you through it. Features & Benefits Carbide Planer Teeth 34 bolt-on carbide teeth share the workload, allowing each tooth to make smaller cuts. This improves cutting efficiency, extends tooth life, and reduces replacement costs. Direct Hydraulic Drive Simple, rugged hydraulic system maximizes torque and RPM without electrical connections, increasing reliability and reducing downtime. Heavy 3/4" Steel Rotor The thick steel rotor provides strength, rigidity, and added momentum, allowing the grinder to power through tough hardwood stumps without flexing. Enhanced Chip Clearance Teeth extend 1¼ inches from the rotor to prevent plugging, improve chip evacuation, reduce heat buildup, and protect both teeth and rotor. Self-Feeding Action Designed to naturally regulate cutting pressure, providing smooth grinding performance and reducing operator fatigue. Slip-Free Protection Integrated hydraulic relief valve protects the system from sudden shock loads caused by rocks or buried debris. Full Specifications Mount Type Skid Steer, 1" Pivot Pin Recommended Carrier Size 25–80 HP Hydraulic Drive Direct Flow (Gerotor Motor) Hydraulic Remotes Required 1 Electrical Requirement None Rotor Size 24" Diameter Rotor Thickness 3/4" Heavy Steel Number of Teeth 34 Planer-Style Carbide Tooth Part Number S1000 Tooth Chip Clearance 1¼" Extension Cutting Depth Below Ground Up to 10" Max Cutting Depth Per Pass 5" Max Horizontal Cut 22" Swing Arc Self-Feeding Over Torque Protection Hydraulic Relief Valve Shipping Weight 642 lbs Included Replacement Teeth 6 Free, Onboard Storage Pins Greaseable, Zinc-Plated Warranty 1 Year, Parts & Labor Motor Option — S450 12–20 GPM Motor Option — S550 15–30 GPM Motor Option — S650 20–40 GPM Buy Direct From Sullivan Equipment Co Manufacturer's warranty included · Fully insured shipping · A real person answers the phone No Sales Tax At CheckoutPlease allow 5-7 days for shipping. Once your order ships, we'll send a tracking number to the email address on file. If you have any questions regarding your order please call 800-260-8983 or email support@sullivanequipmentco.com.
This product has a 1 year warranty from the date of purchase. This warranty covers parts and labor, but does not cover misuse, negligence, consequential damage or expenses including loss of profit.
If you have any questions regarding your warranty please call 800-260-8983 or email support@sullivanequipmentco.com.