Engine Specifications:
The SD22D Bulldozer is equipped with a Cummins NT855-C280 BCIII engine, which is an in-line, water-cooled, 4-cycle, overhead valve direct injection, turbocharged diesel engine. It has a rated power of 162 kW (220 HP) at 1800 rpm. The engine features six cylinders with a bore and stroke of 139.7 mm x 152.4 mm, and a piston displacement of 14,010 ml. The minimum fuel consumption is 205 g/kW.h, and the maximum torque is 1030 N.m at 1250 rpm.

Transmission and Drive System:
The bulldozer uses a planetary gear transmission with a multi-disc clutch, hydraulically connected and forced lubrication. The main drive consists of a spiral bevel gear with splash lubrication and single-stage speed reduction. The steering clutch is wet, multi-disc, spring-loaded, and hydraulically controlled. The steering brake is wet, floating, and operates with direct on-off hydraulic inter-linking. The final drive features a 2-stage speed reduction of spur gear with splash lubrication.

Hydraulic System:
The hydraulic system includes a gear pump with a maximum pressure of 14 MPa and a discharge rate of 262 L/min at 1800 rpm. The working cylinder bore is 120 mm with two double-acting types.

Blade Specifications:
The bulldozer is equipped with a straight-tilt blade. The blade has a width of 4365 mm, a height of 1248 mm, and a dozing capacity of 6.8 m³. The maximum drop below ground is 550 mm, and the maximum tilt adjustment is greater than 755 mm. The weight of the blade is 2768 kg.

Undercarriage System:
The undercarriage features a swing type of sprayed beam with a suspended structure of an equalizer bar. It has two carrier rollers on each side and seven track rollers per side (four single flange and three double flange). The track type consists of assembled single-tooth shoes with 41 on each side, and the width of the track shoes is 660 mm with a pitch of 216 mm.

Performance and Dimensions:
The operating weight of the bulldozer is 25.8 tons, with a ground pressure of 0.070 MPa. It has a minimum ground clearance of 513 mm and a minimum turning radius of 3.8 meters. The gradeability is 30 degrees. The track gauge is 2000 mm. The bulldozer's travel speed ranges from 0-3.6 km/h in 1st gear to 0-11.2 km/h in 3rd gear forward, and 0-4.3 km/h in 1st gear to 0-13.2 km/h in 3rd gear reverse.

Contact Information:
Shandong Shantui Construction Machinery IMP&EXP Co., Ltd. is located at No.71 East Wutaizha Road, Jining, Shandong, China. They can be contacted via phone at +86-537-2909367/2909368/2909369/2909370, fax at +86-537-2311219, or email at [email protected]. More information is available on their website: www.shantuichina.com.