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Big Bulldozer, 175 Kw, Blade 6.8 M3

  • Special Type

  • Hydraulic Transmission

  • Crawler

  • Front Discharge

  • 147~515kw

  • ISO9001: 2000

  • JSIE4221S

  • New

  • Yellow

  • Suitable for The Most Demanding Applications.

  • Nude

  • 6047x4365x3435mm

  • JSIE

  • China

  • 8429119000

  • 1000unit/Year

Key Specifications / Features

Product: Big Crawler Bulldozer.
Power: 175 kW.
Operating Weight: 25,700 kg.
S Blade Capacity: 6.8 m3.

Technical features of the 4221S crawler bulldozer
  • A high pressure common rail turbocharged engine manufactured by Chongqing Kang Mingsi is selected for the 4221S crawler dozer, and the emission meets the requirement of stage three in China.
  • The 4221S crawler dozer which can be used for wetlands has a beautiful appearance and is equipped with a hexahedral cab instead of the traditional square cab. And the cab has a wide view.
  • The left side operation is adopted for the steering brake instead of the front operation and the operating structure was adjusted in order to enlarge operation space, which makes the crawler dozer conform to ergonomics.
  • The cab is equipped with front-mounted air conditioners with both cooling and heating functions, which makes the driver comfortable.
  • The steering brake valve is adopted for the crawler dozer, and hydraulic linkage is adopted for steering and braking instead of mechanical linkage. A flexible shaft is adopted for the crawler dozer, which makes the crawler dozer easy to be operated and save labor.
  • The variable speed pump is a high speed drive. And the crawler dozer is equipped with the gear oil pump with the compensatory function, which improves reliability of the oil system.
  • The suspended balance beam is adopted for the running system, which makes the crawler dozer be used on rough and uneven grounds.
  • The 4221S crawler dozer has a reasonable structure. Maintenance can be conducted at many parts.
  • The centralized pressure measurement technology is adopted to eliminate a breakdown and to maintain the crawler dozer. The quick-wear part can easily be replaced.
Performance parameter
Type Unit Parameter
Working weight Kg 25700
Minimum ground clearance mm 513
Ground pressure Mpa 0.041
Minimum turning radius mm 3800
Gradeability ° 30
Center distance of the track mm 2250
Capacity of per dozer blade m3 6.8
Width of dozer blade(straight dozer blade) mm 4365
Blade height mm 1270
Maximum depth of cut mm 618
Maximum lifting height mm 1380
Maximum digging angle of dozer blade mm 500
Cutting angle ° 55
Track type Triangular track plates
Width of the track plate mm 910
Distance between the two track chains mm 216
Driving speed 1-3 forward kM/h 0~3.6, 6.5 and 11.2
1-3 reverse kM/h 0~4.3, 7.7 and 13.2
Engine Model QSNT-C235S30
Rated power kw 175
Rated Speed rpm 1800
Dimension(length*width*height) mm 6047x4365x3435



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