The 30SG stump grinder features a variant of the same time-tested track drive platform used by the RTK trencher series. The 30SG has a hydraulically-driven cutter wheel that is raised and lowered into the stump and then moved from side to side to cut down. The 30SG is powered by a 31hp Briggs & Stratton Vanguard V-Twin engine. The engine is coupled to two gear pumps: the larger gear pump drives the cutter wheel and the smaller pump works the tilt and swing cylinders. The tracks are driven by independent hydrostatic pumps mounted on the rear of the engine for easy access and simple linkage control. Counterbalance valves on each track drive prevent the track motors from slipping while the cutter wheel is engaged in the cutting process, even while operating on a slope.

The cutter wheel system is designed for both safety and ease of operation, with all controls conveniently positioned on the operator console. Activation begins with the left hand placed on the hand rest, automatically enabling the Cutter ON switch. A simple press of the green Cutter Start button with the right hand engages the wheel, and releasing the controls stops it instantly for operator safety. The Lift/Lower lever provides smooth, responsive control over vertical movement, while the Swing Control allows effortless left-to-right steering. Together, these intuitive functions give the operator precise control of the cutter wheel for efficient and reliable performance.

All hydraulic drive to the cutter wheel eliminates costly belts. It also increases customer satisfaction by ensuring there is no loss of power because of a damaged belt or mechanical component. The track drive increases maneuverability around the job site, creating customer satisfaction by allowing them to get the job done with increased efficiency.