Equipment Type

Komatsu D51i-22, D39i-23, D37i-23 Crawler Dozers

Three models have been added to the line of intelligent Machine Control crawler dozers.

January 29, 2014

Three models have been added to the line of intelligent Machine Control crawler dozers: D37i-23, D39i-23, and D51i-22. Units have fully automatic blade control for both rough and finish grading. Factory-installed cab-top GNSS antenna, enhanced inertial measurement unit, and stroke-sensing hydraulic cylinders replace machine control components typically mounted on the blade.

Operating weights for the D51i-22 range from 27,381 to 29,057 pounds, and it is powered by a Tier 3 SAA6D107E-1 engine providing 130 horsepower at 2,200 rpm. Operating weights for the D37i-23 and D39i-23 range from 18,872 to 21,848 pounds. Tier 4-Interim engines provide 89 and 105 horsepower at 2,200 rpm, respectively. 

The dozers also feature the integration of the KOMTRAX  telematics system and Topcon’s construction management system.

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other Komatsu America Corp. products

Upgraded with a certified Tier 4-Final Komatsu SAA6D114E-6 diesel with net horsepower of 257

The 469-horsepower HM400-5 ADT is Tier 4-Final certified with a Komatsu SAA6D140E-7 engine.

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