SD9N bulldozer is 430 horsepower track-type dozer with elevated sprocket, power shift drive, semi-rigid suspended and hydraulic controls. SD9N bulldozer is elevated sprocket, track-type bulldozer. Its undercarriage system is elastic suspended, elevated sprocket, hydraulic direct drive, and hydraulic controls. SD9 dozer can be equipped with S-blade, single shank ripper. Main structure uses high strength plate and is suitable for working in stony, worse earth condition. The cab is installed Rops device and comfortable seat.