High Performance Tawable Mini Excavator - Normal Structure Bulldozer SD6N – Xuanhua Construction

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.

Specifications

Dozer                                                                                        Tilt

(not including ripper) Operation weight (Kg)                16500

Ground pressure(KPa)                                                        55.23

Track gauge(mm)                                                                1880

Gradient                                                                                30°/25°

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

Engine

Type                                                                                 C6121ZG55

Rated revolution (rpm)                                                1900

Flywheel power (KW/HP)                                           119/162

Max. torque (N•m/rpm)                                         770/1400

Rated fuel consumption(g/KW•h)                        ≤215

Undercarriage system

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

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.