Normal Structure Bulldozer SD6N
SD6N bulldozer is 160 horsepower track-type dozer with hydraulic direct drive, semi-rigid suspended and hydraulic controls. It is equipped with Shangchai C6121 diesel engine manufactured under Caterpillar license. The engine has the characteristics of big torque reserve coefficient and capacity against over-load. The torque converter is a hydro-mechanical converter whose power is divided outside, which has the characteristics of wide high efficiency range. Steering and braking can be controlled with the same control lever. Braking system utilizes hydraulic boosting structure, which is convenient and labor-saving. The final drive gear has the characteristics of large displacement coefficient value. This kind of design raises bearing capacity and prolongs the useful time. The final drive also utilizes the structure that its bearing clearance is free of adjustment, which is convenient for service. The equalizer bar utilizes free lubricating structure to decrease service cost.
(not including ripper) Operation weight (Kg) 16500
Ground pressure(KPa) 55.23
Track gauge(mm) 1880
Min. ground clearance (mm) 445
Dozing capacity (m³) 4.5
Blade width (mm) 3297
Max. digging depth (mm) 592
Overall dimensions (mm) 5037×3297×3077
Rated revolution (rpm) 1900
Flywheel power (KW/HP) 119/162
Max. torque (N•m/rpm) 770/1400
Rated fuel consumption(g/KW•h) ≤215
Type Swing type of sprayed beam.
Suspended structure of equalizer bar
Number of track rollers (each side) 7
Number of carrier rollers (each side) 2
Pitch (mm) 203
Width of shoe (mm) 560
Implement hydraulic system
Max. system pressure (MPa) 15.5
Pump type Gears pump
System output（L/min） 178
Torque converter Outside separating combination
Transmission Planetary, power shift transmission with three speeds forward and three speeds reverse, speed and direction can be quickly shifted.
Steering clutch. Multiple-disc oil power metallurgy disc compressed by spring. hydraulic operated.
Braking clutch Brake is oil two direction floating band brake operated by mechanical foot pedal.
Final drive The final drive are double reduction with spur gear and segment sprocket.