The is what it takes to be a PRO. Performance-driven has like a heavy-duty air cleaner, forged-steel crankshaft, electronic ignition and cast-iron cylinder liner. KOHLER Command PRO is the standard for professional-grade power and performance. KOHLER Command PRO. Quad-Clean all-season four-stage cyclonic air filter - effective engine protection for tough-and-dirty conditions. Large-capacity fuel tank means more time working, less time filling. Power or repower your equipment without expensive modifications. The GS1500 Wood Chipper is powered by a KOHLER electric start gasoline engine, and equipped with a 12V20Ah lead-acid battery. The start key is installed at the position of the feeding chute, making it easier to start and stop the engine. There are 2 buckles that can be quickly opened for easy cleaning of residual wood chips and blade replacement on one side of the feeding chute. Similarly, on one side of the discharge chute, there are 2 buckles that can be quickly opened for easy cleaning of residual wood chips and blade replacement. The core cutting component of the GS1500 Wood Chipper is a roller with a diameter of 9'' and a length of 12'', providing maximum cutting force to effortlessly cut branches with a maximum diameter of 5'. GS1500 is equipped with two D.O.T.Approved 16'' O.D. Road Tires, and the wheelbase reaches an impressive 46'' , providing enhanced stability when being towed. The belts are made of Kevlar, which is more wear-resistant than ordinary neoprene belts, greatly reducing maintenance frequency. The blades are made of professional A8(5Cr5MoWS), providing the appropriate strength and toughness, significantly extending the blade's lifespan. Engine KOHLER CH440 Engine Type Single cylinder,4 stroke, air-cooled,OHV Engine Displacement 429 cc Horsepower 14hp Max Chipping Dia. 5 in Reduction Ratio 20:1 Knives Nos. 2 x blade; 1 x anvil Emergency Stop Stop Bar + Button Start E-start Drive 2 x V-Belts Cutting Method Drum Blades Type Double Edge Blade Tire 16 x 8.00-7 O.D. 5 in 5 in 5 in 6 in 6 in 6 in Reduction Ratio 20:1 20:1 20:1 20:1 20:1 20:1 Emergency Stop Stop Button Stop Button Stop Button Stop Bar + Button Stop Bar + Button Stop Bar + Button Wheelbase 46 in 46 in 46 in 48 in 48 in 48 in Towing Tow Bar With 2 in Coupler Tow Bar With 2 in Coupler Tow Bar With 2 in Coupler Tow Bar With 2 in Coupler Tow Bar With 2 in Coupler Tow Bar With 2 in Coupler Packing Size (L*W*H) 36 x 31 x 49 in 36 x 31 x 49 in 36 x 31 x 49 in 43 x 31 x 50 in 43 x 31 x 50 in 43 x 31 x 50 in Weight (N.W./G.W.) 441 / 498 lbs 441 / 498 lbs 441 / 498 lbs 569 / 610 lbs 569 / 610 lbs 569 / 610 lbs. Electric Start. Feeding Chute. Discharge Chute. Maximum Wood Chip Diameter 5 in. 16'' O.D. Road Tires. Blade and Belt.