Bulldozer_SD9N_44T

Model： SD9N

■Introduction:  

SD9N bulldozer is track-type dozer with elevated sprocket, hydraulic direct drive, semi-rigid suspended and hydraulic controls. 

Equipped with power separating hydraulic-mechanic type Torque converter, planetary, power shift and one lever control transmission. 

SD9N bulldozer is 430 horsepower track-type dozer with elevated sprocket, power shift drive, semi-rigid suspended and pilot hydraulic control. 

The elevated sprocket and semi-rigid suspended have greatly increased the operating efficiency and transmission system life. It integrate with modular design and easy to repair & maintenance. 

The working device is pilot control, it is sensitive response, accurate and labor-saving.

 The large space and low noise cab meets the FOPS&ROPS standards. SD9N equipped with Cummins KTA19-C525 diesel engine, it is an ideal machine for large-scale earthwork construction such as transportation, desert, oil field, power, mine, port and so on.

■推土机性能参数 Specifications

铲刀型式 Dozer: 直倾铲 Tilt

使用质量Operation weight(Kg):  44360

使用质量(带松土器) Operation weight (including ripper) (Kg):  48880

接地比压  Ground pressure(KPa): 102

接地比压(带松土器)  Ground pressure(including ripper) (KPa): 112

履带中心距 Track gauge(mm): 2250

爬坡性能Gradient:30°/25°

***小离地高度 Min. ground clearance (mm): 517

铲刀容量 Dozing capacity (m³) : 13.5

铲刀宽度×高度 Blade width (mm) : 4314×2000mm

***切土深度 Max. digging depth (mm) :  614

外形尺寸(长×宽×高) Overall dimensions (mm) :6592×4314×3970

外形尺寸(长×宽×高)(带松土器)Overall dimensions (mm) (including ripper): 8478×4314×3970

■发动机 Engine

型式 Type:康明斯 CUMMINIS KTA19-C525

额定转速 Rated revelution (rpm):  1800

额定功率 Rated power (KW/HP) :347

扭矩储备系数 Torque storage coefficeient: 18%

■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。

Type :The tyack is triangle shape. The sprocket is elevated elastic suspended.

支重轮数量(单侧): 8

Number of track rollers (esch side):  8

链轨节距(mm):  240

Pitch (mm)):  240

履带板宽度(mm):  610

Width of shoe (mm): 610

■速度档Gear:  

前进Forward  (Km/h):  一档1st:  0-3.9,二档2nd: 0-6.9,三档3rd: 0-12.2 

后退Backward (Km/h): 一档1st: 0-4.8, 二档2nd: 0-8.5, 三档3rd:0-15.1 

■工作装置液压系统 Implement hydraulic system

***系统压力 Max. system pressure (MPa): 24

油泵型式 Pump type:  柱塞泵 

系统流量 System output（L/min）: 240

■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.