This Stump Grinder is in the prototype stage.  The Stump Grinder is not available for production at this time.  The Stump Grinder is intended to be powered by existing excavator auxillary hydraulic circuit.  For future planning, ensure that the excavator has a minimum of 75 HYDRAULIC HORSEPOWER.

HYD. H.P. = G.P.M. x p.s.i. / 1714