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°
最小离地高度 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
最大切土深度 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
最高系统压力 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.
最终传动 : 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.
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