SD7N bulldozer is track-type bulldozer with elevated sprocket, power shift drive, semi-rigid suspended and hydraulic controls. It is with modular design, easy to repair & maintenance. Pilot hydraulic control with high working efficiency. According to the man-machine engineering design, the control system is smart and accurate. It is equipped with multi-function display and ROPS cabin . It can be equipped with U-blade, single shank ripper, three shanks ripper etc.. It is an ideal machine used in communication construction, oil field, power, mining etc. large earth moving projects.

Dozer			Tilt
(not including ripper) Operation weight (Kg)			23800
Ground pressure(KPa)			71.9
Track gauge(mm)			1980
Gradient			30°/25°
Min. ground clearance (mm)			404
Dozing capacity (m³)			8.4
Blade width (mm)			3500
Max. digging depth (mm)			498
Overall dimensions (mm)			5677×3500×3402
(including ripper)			7616×3500×3402
Type			CUMMINS NTA855-C280S10
Rated revolution (rpm)			2100
Rated power (KW)			185
Max. torque (N•m/rpm)			1097/1500
Rated fuel consumption(g/KW•h)			≤235
Type			Max. torque (N•m/rpm)
Type			The track is triangle shape.The sprocket is elevated elastic suspended.
Number of track rollers (each side)			7
Pitch (mm)			216
Width of shoe (mm)			560
Gear	1st	2nd		3rd
Forward  (Km/h)	0-3.9	0-6.5		0-10.9
Backward (Km/h)	0-4.8	0-8.2		0-13.2
Implement hydraulic system
Max. system pressure (MPa)			20
Pump type			High pressure gears pump
Control type			Pilot control
System output (L/min)			170
Torque converter			Torque converter is power separating hydraulic-mechanic type
Transmission			Planetary, power shift transmission With three speeds forward and three Speeds reverse, speeds and Direction can be quickly shift
Steering clutch			The steering clutch is hydraulicpressed, usually separated clutch.
Braking clutch			The braking clutch is pressed by spring, separated       hydraulic, meshed type.
Final drive			The final drive is two-stage planetary reduction gear     mechanism, splash lubrication.