bulldozer (TY320 (SD8))

Main specifitions Operating weight(not including ripper)-------40000kg Ripper weight---------------4300kg Engine flywheel power/RPM----------246 kw(335HP)/1900r/min Track ground contact length---------3280 mm Ground pressure(without ripper)------- ----------105 kPa Track contact length-------------------------2200 mm Overall dimensions(LxWxH)---------8090×4172×3952(with single shank ripper) Gradeability----------------latitude30° transverse 25° Ground clearance----------------------------- 485mm Theory travel speed (km/h) 1st gear forward 0-3.9 1st gear backward 0-4.8 2nd gear forward 0-6.8 2nd gear backward 0-8.4 3rd gear forward 0-11.9 3rd gear backward 0-14.8 Dozing operating rate (moving distance 40m)----- -------452m3/h Diesel engine specificationsModel------------------NTA855-C400 (BCIII) Type:water cooled, single line, four strokes, turbocharged, 6-cylinders, diameter 140mm Rated speed-----------------------1900r/min Flywheel power--------------- 246kw(335HP) Torque storage coefficient----------------------24.5% Start mode--------------------24v electric starting Torque converterPower separating, hydraulic-mechanic drive, single stage torque converter is used in SD8 elevale sprocket bulldozer. Transmission assemblyIt integrates center drive, transmission and speed changing control valve into one component. It can be assembled or disassembled as assembly or as a part. It is very convenient to service. Transmission is multi-stage planetary drive to realize modular assembling and disassembling. Gear the shift can be changed among 1st gear, 2nd gear, 3rd gear forward or reverse rapidly, through multi-functional control valve. Undercarriage system SD8 dozer utilizes elastic-mounted undercarriage. The track is triangle shape. The sprocket is elevated. Through floating function of continuous auxiliary suspension device, the machine can travel near obstacle on the ground to improve travelling stability and comfortable of the driver. Ground contact area is increased. Performance of travelling and traction is raised. R.o.p.s cabThe cab is hexagonal thin wall box-type structure. Glass is mounted at six sides with wide viewing range. Pulling and pushing glass is mounted at back side. Air conditioner can be installed according to the requirement of customer. The structure of Rops is rigid. It can protect the driver efficiently when the bulldozer is in special condition. Adjustable operator’s seat bias to right 15° and fuel tank, engine hood, track are tilting, the driver can has a good front and rear sighting range. Implement hydraulic system Implement hydraulic system can control lifting, lowering and tilting of the blade. It also can control the moving of ripper. It mainly consists of oil pump, cylinder, valve group, oil tank line and controlling parts. Implement pump is two group vane type pump. The main specification is as following: Front pump Displacement------------------129ml/r Rated pressure----------------21MPa Rated speed-----------2000r/min Rear pumpDisplacement----------------------56ml/r Rated pressure-------------------------21MPa Rated speed----------------2000r/min Rated operation pressure of blade lifting system--------17.5MPa Rated operation pressure of tilting system--------------18.3MPa Hydraulic system of tractorIt is composed of oil pump, transmission control valve, steering and braking control valve, sequence valve, torque converter outlet relief valve, filler and oil line, etc. Main pump is three group gear pump. The main performance is as following: Lubricating pumpRated displacement---------------------------90 ml/r Rated pressure--------------------------0.4 MPa Rated speed----------------------------2000 r/min Working pumpRated displacement-------------115 ml/r Rated pressure--------------------3.1 MPa Rated speed----------2000 r/min Oil draining pumpRated displacement--------160 m/r Rated pressure---------------0.5 MPa Rated speed-----------------------2000 r/min BladeType Height WidthCapacity s-blade1765mm 4172 mm13.0 m3 RipperType single, adjustable hydraulic ripper Rippering angle--------------------------45 Max. penetration-------------------1150mm Max. lifting height--------------830mm Blade typeGround contact length(A)Overall Lenght(B)Blade height(C)Overall height(D)Blade width(E)Track center distance(F)Penetrating lengthLifting heightBlade capacityStraight tilting blade(s-blade)(with ripper)328080901765395241722200614128813.0Straight tilting blade(S-blade)(with traction machanism)328067551765395241722200614128813