Sinoway Industrial (Shanghai) Co., Ltd.
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Main Specification of Bulldozer
| Operating weight(not including ripper) | 40000㎏ |
| Ripper weight- | 4300㎏ |
| 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(L×W×H) | 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; reverse 0-4.8 |
| Theory travel speed (km/h) 2nd gear | forward 0-6.8; reverse0-8.4 |
| Theory travel speed (km/h) 3rd gear | forward 0-11.9; reverse0-14.8 |
| Dozing operating rate (moving distance 40m)- | 452m3/h |
| Diesel engine specification | |
| Model | Cummins 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 |
| Power transmitting system | |
| Power separating, hydraulic-mechanic drive, single stage torque converter is used in SWD8 elevate sprocket bulldozer. It integrates center drive, transmission and speed changing control valve into one component. It can be assembled or disassembled, and is 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. Braking clutch and steering clutch are adjustment-free, oil-type, multi-disc clutch. The former is pressed by spring, separated hydraulically, constant meshed type, and the later is hydraulic pressed, non-constant engaged clutch. Steering and braking act simultaneously, operated manually to achieve steering slowly, sharply and braking. The braking of entire machine can be realized through the pedal. Braking rod is designed to keep the undercarriage system in braking condition and guarantee the machine not to slip on slope when starting the engine. Final drive is two-stage planetary reduction gear mechanism. It is mounted at outside of steering and braking clutch. Combined sprocket segment is very convenient for assembling, disassembling and service. |
|
| Hydraulic system | |
| It 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 pump Rated displacement | 90 ml/r |
| Lubricating pump Rated pressure | 0.4 MPa |
| Lubricating pump Rated speed | 2000 r/min |
| Working pump Rated displacement- | 115 ml/r |
| -Working pump Rated pressure | 3.1 MPa |
| Working pump Rated speed | 2000 r/min |
| Oil draining pump Rated displacement | 160 m/r |
| Oil draining pump Rated pressure | 0.5 MPa |
| Oil draining pump Rated pressure--- | 0.5 MPa |
| 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 pumps. The main specification is as following: | |
| Front pump displacement-- | 129ml/r |
| Front pump rated pressure | 21MPa |
| Front pump rated speed | 2000r/min |
| Rear pump displacement- | 56ml/r |
| Rear pump rated pressure | 21MPa |
| Rear pump rated speed | 2000r/min |
| Rated operation pressure of blade lifting system- | -17.5MPa |
| Rated operation pressure of tilting system - | 18.3MPa |
| Undercarriage system | |
| SWD8 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 traveling stability and comfortable of the driver. Ground contact area is increased. Performance of traveling and traction is raised. | |
| Maintenance filling capacity | |
| Fuel tank | 753L |
| Water tank and diesel engine cooling water | -125L |
| Camshaft case of diesel engine | 47L |
| Bevel gear case hydraulic system of tractor - | 167L |
| Final drive (one side)- | 23L |
| Rear seat buffer spring case (each side) | 30L |
| Pivot lubricating- | 13L |
| Implement system oil tank | |
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