320hp bulldozer with cummins engine

Main specifications

Operating weight( including ripper)  

37400kg

Ripper weight 

430kg

Engine flywheel power/RPM 

 235 kw(320HP)

Track ground contact length

3252 mm

Ground pressure(without ripper)

93 kPa

Track Gauge 

2083 mm

Overall dimensions(L×W×H) 

7751×3940×3549(with single shank ripper)

Grade ability

latitude30 °

transverse 25°

Ground clearance 

  556mm

Theory travel speed  (km/h) 

1st gear forward 0-3.5            1st gear backward 0-4.7

2nd gear forward 0-6.2           2nd gear backward 0-8.1

3rd gear forward 0-10.8          3rd gear backward 0-13.9

Dozing operating rate (moving distance 40m)      452m3/h

Diesel engine specifications

Model

NTA855-C360S10

Type

water cooled, single line, four strokes, turbocharged, 6-cylinders, diameter 140mm

Rated speed

2100r/min

Flywheel power

235kw(320HP)

Torque storage coefficient 

24.5%

Start mode

24v electric starting

Torque converter

Torque converter is power separating hydraulic-mechanic type

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.

Steering and braking clutch

Steering and braking clutch are adjustment-free, oil-type, multi-disc clutch. The braking clutch is pressed by spring, separated hydraulically, constant meshed type. Steering clutch is hydraulic pressed, non-constant engaged clutch. Steering and braking acts simultaneously, operated manually to realize 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

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.

Undercarriage system

SD8B 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.

ROPS cabin

The 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.

Blade

Type

s-blade 

Height

1690mm 

Width 

3940 mm

Ripper

Type 

single, adjustable hydraulic ripper

Rippering angle

45°

Max. penetration

1150mm

Max. lifting height 

830mm

Dimension (Straight tilting blade(s-blade)

(with ripper))

Ground contact length

3280mm

Blade height

1690

Blade width

3940

Track center distance

2083

Penetrating length

614

Lifting height

1288