Description
SD7N bulldozer is 230 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.
It can be equipped with straight tilting blade, angle blade, coal pushing blade, U shape blade; single shank ripper, three shanks ripper; ROPS, FOPS, forest defense cabin etc.. It is can ideal machine used in communication, oil field, power, mining etc. large earth moving program.
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) 24000
接地比压 Ground pressure(KPa) 71.9
履带中心距 Track gauge(mm) 1980
爬坡性能Gradient 30°/25°
最小离地高度 Min. ground clearance (mm) 404
铲刀容量 Dozing capacity (m³) 8.4
铲刀宽度 Blade width (mm) 3500
最大切土深度 Max. digging depth (mm) 498
外形尺寸（长×宽×高）Overall dimensions (mm) 5982×3500×3402
(带松土器) (including ripper) 7616×3500×3402
发动机 Engine
型式 Type CUMMINS NT855-C280S10
额定转速 Rated revolution (rpm) 2100
飞轮功率 Flywheel power (KW/HP) 169/230
最大扭矩 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。
Type The track is triangle shape.
The sprocket is elevated elastic suspended.
支重轮数量(单侧) 7
Number of track rollers (each 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 一档1st 二档2nd 三档3rd
前进Forward (Km/h) 0-3.9 0-6.5 0-10.9
后退Backward (Km/h) 0-4.8 0-8.2 0-13.2
工作装置液压系统 Implement hydraulic system
最高系统压力 Max. system pressure (MPa) 18.6
油泵型式 Pump type 高压齿轮泵 High perssure gears pump
系统流量 System output（L/min） 194
传动系统 Driving system
变矩器 外分流式液力机械变矩器。
Torque converter Torque converter 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.
