Basic Info.
Product Description
SD8 is elevated sprocket, track-type bulldozer. Its undercarriage system is elastic suspended, elevated sprocket, hydraulic direct drive, and hydraulic controls. SD8 dozer can be equipped with S-blade, single shank ripper. Main structure uses high strength plate and is suitable for working in stony, worse earth condition. The cab is installed Rops device and comfortable seat.
Main specifitions
Operating weight(not including ripper) 40000 kg
Ripper weight 4300 kg
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? 4172º 3952(with single shank ripper)
Gradeability latitude30º Transverse 25º
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 ) 452m 3 /h
Diesel engine specifications
Model NTA855-C400 (BC 3 )
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
Transmission assembly
It 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.
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 pump Displacement 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 tractor
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
Rated pressure 0.4 MPa
Rated speed 2000 r/min
Working pump Rated displacement 115 ml/r
Rated pressure 3.1 MPa
Rated speed 2000 r/min
Oil draining pump Rated displacement 160 m/r
Rated pressure 0.5 MPa
Rated speed 2000 r/min
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 89L.
Address:
Room No. 2-1-102, Huasen Biyuntian Buliding, Yaotou Road No. 1, Lixia District, Jinan, Shandong, China
Business Type:
Trading Company
Business Range:
Manufacturing & Processing Machinery
Company Introduction:
GEHUA is a leading manufacturer and exporter of construction machines in China, with business relations with importers and wholesalers from more than 25 countries and regions worldwide. Specializes in the construction machines. Our main products include concrete pump, concrete mixers, concrete plant, tower crane, wheel loaders.
We are a rapidly growing company. Having obtained the ISO9001, ISO2000 certificate.
To keep those relationships strong, our goals are simply stated: No cheating customers, no harm to consumers and always providing our best products with our best price.