. Outstanding travel performance The improved parts and the NEO system realize excellent travel performance and tractive effort, with the tractive effort increased by some 15% over the previous models. . X-shaped bodywork The X-shaped bodywork is welded inside, robust and reliable. The top board of the frame and the traverse board are thicker, so the number of boards is lessened and the intensity gets improved. . Intensified side frame The redesigned cross section of the side frame minimizes the earth collecting around the side frame. The rotation bearing the roller becomes more stable, reducing the transfiguration caused by wear. Meanwhile, it improves the efficiency of digging big earth holes.

. Automatic speed change  When operated in tough conditions, with the tractive weight increased, the travel motor can automatically shift from top gear to bottom gear. When the travel conditions allow, it can automatically return to top gear. . Large axle roller and its rotary disk Built in the X-shaped bodywork, the axle roller goes through the top board, welded on the bottom and the top of the bodywork with increased durability. In order to fit the larger axle roller, the sizes of all the rollers get increased to some extent. For instance, SH300/350HD adopts rollers which can bear 40 tons. . Two-speed travel motor It can provide smoother shift and tractive effort when the machine climbs a slope or swerves. The high-torque drive links helps the machine to clime steep slopes and cross slough. . Track trolley  It is full of synthetic oil to reduce heat and improve long-term reliability. . Post-like link The post have less curves and the machine can bear centralized load. . Track tension adjustable The standard grease cylinder track adjuster and the impact-absorbing spring make the adjustment easier.