Specifications:
The document provides detailed specifications for the SD13 series bulldozers by Shantui Construction Machinery Co., Ltd. Key features include a swing type of sprayed beam with a suspended structure of the equalizer bar, a track type with single teeth and dry type, and a track shoe width of 460 mm. The hydraulic system has a maximum pressure of 14 MPa and a discharge flow of 180 L/min at 1900 rpm.

Engine:
The bulldozer is powered by a SHANGCHAI D6114ZG4B engine, which is water-cooled, in-line, 4-cycle, direct injection, and turbocharged. It has a rated power of 95.5 kW at 1900 rpm and a maximum torque of 674 N.m at 1300 rpm. The engine features a piston displacement of 8.27 L and a rated fuel consumption of ≤228 g/kW.h.

Transmission and Steering:
The bulldozer features a 3-element, 1-stage, 1-phase torque converter and a planetary gear transmission with forced connection. The steering clutch is wet, multi-disc, spring-loaded, and hydraulically assisted, linked with the steering brake. The final drive is a 2-stage speed reduction of spur gear with splash lubrication.

Undercarriage System:
The undercarriage includes 2 carry rollers and 6 track rollers on each side. The bulldozer has a track gauge of 1880 mm and a minimum ground clearance of 320 mm.

Blade and Performance:
The bulldozer is equipped with different blade types, including straight-tilt, angle, and wetland hydraulic blades. The operating weight ranges from 14,000 to 14,500 kg, with a ground pressure of 0.064 to 0.044 MPa. The dozing capacity varies from 3.4 to 3.7 m³, and the maximum cutting depth is 590 mm.

Additional Features:
The extended track shoe ensures low ground pressure and high stability. The bulldozer's power transmission allows for quick and flexible speed and direction changes with a single control lever. The wet-type steering clutch and brake extend the service life, and the hexahedron cab provides a broad field of vision while reducing noise and vibration. Maintenance is facilitated by self-circling fuel filters and air filters with dust separators.