SD6N Bulldozer

● Description

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.

● Main specifications

Dozer: Tilt

Operation weight (including ripper) (Kg): 16500

Ground pressure(including ripper) (KPa): 55.23

Track gauge(mm): 1880

Gradient: 30/25

Min. ground clearance (mm): 445

Dozing capacity (m): 4.5

Blade width (mm): 3279

Max. digging depth (mm): 592

Overall dimensions (mm): 503732973077

Engine

Type: C6121ZG55

Rated revolution (rpm): 1900

Flywheel power (KW/HP): 119/162

Max. torque (Nm/rpm): 770/1400

Rated fuel consumption(g/KWh): 215

Undercarriage system                        

Type: The track is triangle shape. 

The sprocket is elevated elastic suspended: 7

Number of track rollers (each side): 2

Pitch (mm): 203

Width of shoe (mm): 560

Gear           1st     2nd     3rd                                            

Forward  (Km/h)       0-4.0          0-6.9           0-10.9

Backward (Km/h)       0-4.8          0-8.4          0-12.9

Implement hydraulic system

Max. system pressure (MPa): 15.5

Pump type: Gears oil pump

System outputL/min: 178

Driving system

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.