Bulldozer_SD7N_24T

Model：Bulldozer_SD7N

SD7N bulldozer is 240 horsepower track-type dozer with elevated sprocket, power shift drive, semi-rigid suspended and hydraulic controls. 

SD7N-230 horsepower, elevated sprocket bulldozer integrate with modular design is easy to repair & maintenance,

It relieves oil with difference pressure, the hydraulic system performs protecting environment and save energy with high working efficiency.

 Safety comfortable operation condition, electric monitoring and ROPS cabin with reliable entire quality, excellent service is your wise choosing.

■推土机性能参数 Specifications:

铲刀型式 Dozer:直倾铲 Tilt

使用质量(not including ripper) Operation weight (Kg):  24300接地比压 Ground pressure(KPa)74.1

履带中心距 Track gauge(mm):  1980

爬坡性能Gradient: 30°/25°

***小离地高度 Min. ground clearance (mm): 404

铲刀容量 Dozing capacity (m³):8.1

铲刀宽度 Blade width (mm): 3552

***切土深度 Max. digging depth (mm):498

外形尺寸（长×宽×高）Overall dimensions (mm): 5857×3552×3402

(带松土器) (including ripper): 7796×3552×3402

■发动机 Engine

型式 Type:CUMMINS NT855-C280S10

额定转速 Rated revelution (rpm):  2100

额定功率 Rated  power (KW):  185

***扭矩 Max. torque (N?m/rpm):1097/1500

燃油消耗率Rated fuel consumption(g/KW?h):≤235

■行走系统 Undercarriage system

型式:  履带呈三角形布置，驱动链轮高置，弹性悬挂。

Typev The tyack is triangle shape.

The sprocket is elevated elastic suspended.

支重轮数量(单侧): 7

Number of track rollers (esch side): 7

链轨节距(mm):  216

Pitch (mm): 216

履带板宽度(mm):560

Width of shoe (mm):560

■速度档Gear        

前进Forward  (Km/h):1st:0-3.9,     2nd:0-6.5,     3rd:0-10.9 

后退Backward (Km/h): 1st:0-4.8,     2nd:0-8.2,     3rd:0-13.2 

■工作装置液压系统 Implement hydraulic system

***系统压力 Max. system pressure (MPa): 20

油泵型式 Pump type: 高压齿轮泵 High perssure gears pump

系统流量 System output（L/min）: 170

■传动系统 Driving system

变矩器:外分流式液力机械变矩器。 

Torque converter:  Torque conver is power separating hydraulic-mechanic type

变速箱:变速箱为行星齿轮传动，动力换挡变速箱。前进三档、后退三档。可实现档位和方向的快速变换。

Transmission:  Planetary, power shift transmission with three speeds forward and three speeds reverse, speed and direction can be quickly shifted.

转向离合器:转向离合器为免调式、湿式多片、液压压紧的常分离的离合器

Steering clutch:The steering clutch is hydraulic pressed, usually separated clutch.

制动离合器:制动离合器为免调式、湿式多片、碟簧压紧、液压分离的常结合的离合器

Braking clutch:The braking clutch is pressed by spring,separated hydraulic, meshed type.

***终传动:  终传动为两极行星减速机构，飞溅润滑。

Final drive: The final drive is two-stage planetary reduction gear  mechanism, splash lubrication.