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Baumalight Stump Grinder | Model S40 | Rotor Size 24" | Hydraulic Flow Range 15 To 60 GPM | For Skid Steers
DESCRIPTION
Upgrade your stump removal game with the Baumalight Stump Grinder Models S28 and S40 precision-engineered attachments built for power, durability, and unmatched performance on skid steers. Whether you’re a landscaping professional, construction contractor, or rental operator, these high-flow stump grinders deliver the muscle and control you need to tackle stubborn stumps with ease.
Designed specifically for skid steers with hydraulic flow between 22 and 47 GPM, these grinders combine rugged construction with advanced hydraulic technology. The massive 24-inch rotor, fitted with durable carbide-tipped teeth, ensures quick, clean cuts, grinding stumps up to 15 inches below ground level. The floating deflector and large blast shield keep debris controlled, protecting your surroundings and speeding up cleanup.
With easy tooth replacement and a robust gearbox that amplifies torque, the S28 and S40 models provide consistent power and reliability making your stump grinding faster, safer, and more efficient. Whether working on golf courses, commercial lots, or rental fleets, these stump grinders are the trusted choice for professionals who demand the best.
Key Features
- Powerful Hydraulic Performance: Compatible with skid steers delivering 22-47 GPM hydraulic flow for optimum torque and cutting power.
- Massive 24" Rotor: Thick 1.25” steel rotor provides strength and durability for heavy-duty stump grinding.
- Carbide-Tipped Teeth: Long-lasting teeth extend 1.25" for superior cutting efficiency and chip clearing.
- Floating Deflector: Directs debris safely away from the operator, enhancing safety and site cleanliness.
- Deep Cutting Capacity: Cuts up to 15" below ground for thorough stump removal and root grinding.
- Swing Radius Control: 63-degree swing arc for precise positioning around tight or landscaped areas.
- Bolt-On Tooth Design: Quick and simple tooth replacement minimizes downtime and maintenance costs.
- High-Torque Gearbox: Increases cutting head torque, ensuring smooth grinding even on the toughest stumps.
- Heavy-Duty Construction: Built to withstand rugged construction and landscaping demands.
- Blast Shield with Chain Curtains: Contains chips and debris, improving job site safety and reducing cleanup time.
- Optimized for High Flow Skid Steers: Perfect for skid steers with hydraulic flow from 22 GPM up to 47 GPM.
- Smooth Operation: Balanced rotor minimizes vibration, prolonging machine life and operator comfort.
- Versatile Application: Ideal for golf courses, construction sites, rental fleets, and large landscaping projects.
- Enhanced Productivity: Fast cutting speed and efficient chip clearing reduce grind time significantly.
- Easy Maintenance: Common replacement parts are readily available locally to keep you working longer with minimal downtime.
Host Machine
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NEW HOLLAND C332 HIGH FLOW | ![]() |
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WACKER NUESON ST45 HIGH FLOW | ![]() |
WACKER NUESON ST50 HIGH FLOW | ![]() |
Detailed Specifications
Specification | Model S28 | Model S40 |
---|---|---|
Hydraulic Flow Range | 22 - 32 GPM | 30 - 47 GPM |
Rotor Diameter | 24 inches | 24 inches |
Cutting Depth (Below Ground) | Up to 15 inches | Up to 15 inches |
Swing Radius | 63 degrees | 63 degrees |
Teeth Count | 34 Planer Carbide Teeth | 20 High-Speed Carbide Teeth |
Teeth Extension Length | 1.25 inches | 1.25 inches |
Weight | Approx. 995 lbs | Approx. 1200 lbs |
Dimensions (L x W x H) | 42" x 40" x 36" | 42" x 40" x 36" |
Recommended Machine | Skid Steers 22-32 GPM | Skid Steers 30-47 GPM |
Gearbox | High Torque Gearbox | Bent Axis Piston Motor |
Blast Shield | Dual Row Chain Curtains | Dual Row Chain Curtains |
Hydraulic Couplers | Not Included | Not Included |
Material | 3/4" & 1.25" Steel Rotor | 1.25" Thick Steel Rotor |
Use Case | Heavy-Duty Stump Grinding | Commercial Stump Grinding |
Comparison Chart
Specification | S14 | S16 |
---|---|---|
Recommended HP Size | Mini Skidsteer | Mini Skidsteer |
Maximum Carrier Size | Check GPM & PSI | Check GPM & PSI |
Motor Type | Gerotor | Bent Axis Piston |
Hydraulic GPM | Check Stump Cutting Size Chart | Check Stump Cutting Size Chart |
Hydraulic Couplers | Included | Included |
Rotor Size | 18" | 18" |
Number of Teeth | 12 | 24 |
Tooth Part number | H3000 | H3000 |
Tooth Construction | High speed | High speed |
Cutting Wheel Speed | Depends on GPM | Depends on GPM |
Cutting Height - Above Ground | No limit | No limit |
Cutting Depth - Below Ground | 6" | 6" |
Maximum Cutting Depth - Per Pass | 2" | 2" |
Maximum Horizontal Cut | 12" | 12" |
Swing Arc | Self-feeding | 56° |
Over Torque Protection | Relieve valve | Relieve valve |
Hitch | 1" pivot pins | Mini Plate |
No. of Remotes Required - Hydraulic | 1 | 1 |
Requires 12 Volt DC | No | Yes |
Minimum Required Amps | - | 30 amps |
Specification | S18 | S22 |
---|---|---|
Recommended HP Size | 25-80 | 25-65 |
Maximum Carrier Size | Check GPM & PSI | Check GPM & PSI |
Motor Type | Gerotor | Gerotor |
Hydraulic GPM | Check Stump Cutting Size Chart | Check Stump Cutting Size Chart |
Hydraulic Couplers | Not Supplied | Not Supplied |
Rotor Size | 24" | 24" |
Number of Teeth | 34 | 34 |
Tooth Part number | S1000 | S1000 |
Tooth Construction | Planer | Planer |
Cutting Wheel Speed | Depends on GPM | Depends on GPM |
Cutting Height - Above Ground | No limit | No limit |
Cutting Depth - Below Ground | 10" | 10" |
Maximum Cutting Depth - Per Pass | 5" | 6" |
Maximum Horizontal Cut | 22" | 22" |
Swing Arc | Self-feeding | 60° |
Over Torque Protection | Relieve valve | Relieve valve |
Hitch | 1" pivot pins | Quick Attach |
No. of Remotes Required - Hydraulic | 1 | 1 |
Requires 12 Volt DC | No | Yes |
Minimum Required Amps | - | 30 amps |
Specification | S24 | S28 |
---|---|---|
Recommended HP Size | 30-80 | 50-120 |
Maximum Carrier Size | Check GPM & PSI | Check GPM & PSI |
Motor Type | Gerotor | Gerotor |
Hydraulic GPM | Check Stump Cutting Size Chart | Check Stump Cutting Size Chart |
Hydraulic Couplers | Not Supplied | Not Supplied |
Rotor Size | 24" | 24" |
Number of Teeth | 34 | 34 |
Tooth Part number | S1000 | S1000 |
Tooth Construction | Planer | Planer |
Cutting Wheel Speed | Depends on GPM | Depends on GPM |
Cutting Height - Above Ground | No limit | No limit |
Cutting Depth - Below Ground | 10" | 10" |
Maximum Cutting Depth - Per Pass | 6" | 6" |
Maximum Horizontal Cut | 22" | 22" |
Swing Arc | 60° | 63° |
Over Torque Protection | Relieve valve | Relieve valve |
Hitch | Quick Attach | Quick Attach |
No. of Remotes Required - Hydraulic | 1 | 1 |
Requires 12 Volt DC | Yes | Yes |
Minimum Required Amps | 10 amps | 10 amps |
Specification | S40 |
---|---|
Recommended HP Size | 50-120 |
Maximum Carrier Size | Check GPM & PSI |
Motor Type | Bent Axis Piston |
Hydraulic GPM | Check Stump Cutting Size Chart |
Hydraulic Couplers | Not Supplied |
Rotor Size | 24" |
Number of Teeth | 12 |
Tooth Part number | H3000 |
Tooth Construction | High speed |
Cutting Wheel Speed | Depends on GPM |
Cutting Height - Above Ground | No limit |
Cutting Depth - Below Ground | 24" |
Maximum Cutting Depth - Per Pass | 2" |
Maximum Horizontal Cut | 22" |
Swing Arc | 85° |
Over Torque Protection | Relieve valve |
Hitch | Quick Attach |
No. of Remotes Required - Hydraulic | 1 |
Requires 12 Volt DC | Yes |
Minimum Required Amps | 10 amps |
Manuals & Documents
The Product Manual
General Warranty Info:
- Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
- The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
- Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
- Please reach out to us for any specific warranty information needed about products and parts you can’t find!
Videos
Shipping
General Shipping Info:
- Instantly calculate shipping quotes to the lower 48 states by 1. adding this product to your cart, 2. click continue to the checkout page and 3. enter your shipping address to check rates. Contact us for quotes for shipping to Hawaii, Alaska, Canada, Mexico and Internationally.
- Complimentary lift gate service on all freight shipments where it’s possible. We guarantee safe delivery!
- Low shipping rates for customers. We have negotiated the best possible rates for customers from our trusted carriers (ODFL, ESTES, UPS, and FedEx).
- Negotiate shipping rates if you think we can do better please reach out. Keep in mind some shipping rates also include assembly & configuration as well!