The Baumalight S40 is a high-performance skid steer stump grinder engineered around hydraulic efficiency, fast cycle times, and rugged cutting power. Designed for operators who need to turn hydraulic flow into real-world grinding performance, the S40 uses a bent-axis piston motor—the industry’s gold standard for torque density, efficiency, and long-term durability. This motor format converts more of your skid steer’s hydraulic power directly into cutting force, giving the S40 a level of output and responsiveness that belt-drive and gear-driven systems simply cannot match.
A massive 1.25" thick steel rotor serves as the backbone of the S40, paired with 12 high-speed, replaceable carbide teeth designed for aggressive cutting action and efficient chip ejection. The concave tooth geometry shears through hardwoods quickly, while the 3-position rotatable teeth extend field life and minimize downtime. Every component of the cutting system is engineered to maintain momentum through dense root systems, oversized stumps, and mixed soil conditions.
With a 2" cutting depth per pass, the S40 is optimized for fast stump removal by cutting in both forward and reverse directions. This design shortens grind times significantly—allowing operators to chew through lateral roots and heavy stump crowns without hesitation. The high swing-speed cylinder accelerates side-to-side travel, delivering responsive cutting motion and reducing time spent repositioning the machine.
A key advantage of the S40 is its extra-large blast shield, equipped with dual rows of chain curtains to contain chips, improve operator visibility, and enhance site safety. The shield is fully hinged, allowing operators to get into tight work areas, service the rotor, or access the teeth quickly without removing the grinder from the machine.
In real-world performance, the S40 consistently outpaces grinders in its class. With an S770 running 2,500 PSI at 40 GPM, the S40 can grind a 24" stump in 8 minutes. At higher pressure ranges—3,000 PSI or 4,000 PSI—the S40 achieves 6.5-minute and 4.5-minute grind times respectively on the same stump. On high-flow machines, performance increases even further, making the S40 one of the fastest, most efficient stump grinders available for commercial skid steer operators.
For contractors, landscapers, and land-clearing teams demanding a skid-steer attachment that delivers maximum hydraulic output, faster cycle times, and dependable durability, the Baumalight S40 stands as a top-tier, professional-grade choice.
