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SD22 crawler bulldozer
SD22 crawler bulldozer

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SD22 BULLDOZER
1.CUMMINS ENGINE
2.F3/R3 TRANSMISSION
3.ROPS FOPS CABIN
4.KOMATSU TECH.

SD22 CRAWLER BULL DOZER

 

ENGINE SYSTEM

TYPE………………………………………….NT855-C280 (S10)Cummins

in-line, water cooled 4-cycle,overhead valve direct injection, turbocharged diesel

Rated revolution………………………………………………………. 1800rpm

Rated horsepower…………………………………………………162KW/220hp

 

TRANSMITTING SYSTEM

 

Gear

1st

2nd

3rd

Forward (km)

0-3.6

0-6.5 0-

11.2

Reverse(km)

0-4.3

0-7.7

0-13.2

 

Torque Converter………………3-element 1 stage1phase

Transmission…….Planetary gear, multi-disc clutch, hydraulically connected, forced lubrication

Main Drive ………….Spiral bevel gear, splash lubrication, single-stage speed reduction

Steering Clutch ……Wet, multi-disc, spring loaded, hydraulically separated, hydraulic control

Steering Brake ……………………Wet, floating, direct on-off hydraulic inter-linking operation

Final drive ………………………….2-stage speed reduction of spur gear, splash lubrication

 

 

Type …………………Swing type of sprayed beam, suspended structure of equalizer bar

Carrier rollers ………………………………………………… (each side)

Track rollers …………………. 6/each side(single flange4,double flange2)(E-7/each side)

Track type …………………………………….Assembled single-tooth shoes(38/each side)

Width of track shoes …………………………………………………….. 560mm

Pitch ………………………………………………………………………….. 216mm

 

POWER TAKE OFF SHAFT

 

Location…………………………….At the middle of the back of steering case

Revolution……………………………………………………………………1800rpm

HYDRAULIC SYSTEMMax..pressure……………………………………………………….14MPa

Pump type…………………………………………………gear pump

Discharge……………… 262L/min(1800rpm) (at revolution of 1800rpm)

Working cylinder …………….120mm×2..…bore of working cylinder×number (double-acting type)

 

OVERALL DIMENSIONS

 

Width……………………………………………………………………… 3725mm

Height…………………………………………………………………. 3395mm

Max. lift above ground………………………………………………….. 1210mm

Max. drop below ground…………………………………………………. 540mm

3-SHANK RIPPER

Max. digging depth…………………………………………………….. 665mm

Max .lift above ground…………………………………………………… 600mm

Standard digging angle…………………………………………………….45

(variable within range between 35°-63°)

LxWxH………………………………………………………6805x3725x3395mm

Operating weight ………………………………………………………….23400kg

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