Komatsu America will introduce three additional iMC (intelligent Machine Control) crawler dozers, giving the company four models by Conexpo. The dozers perform rough dozing along with finish grading in automatic mode, utilizing fully automatic blade control. The first model, D61PXi-23, was introduced in the summer of 2013. The 168-horsepower model will be joined by the 37PXi, 39PXi and D51i-22 with estimated horsepower ratings of 89, 105 and 130, respectively.
When rough dozing, the automatic blade control monitors blade load and adjusts blade elevation to minimize track slip and perform high-efficiency dozing. As work progresses closer to the target finish grade, the automatic blade control adjusts accordingly to provide finish grade performance with high-level precision. Improvement in combination rough dozing efficiency is up to 13 percent higher compared to add-on machine control systems for tested models.
With Komatsu’s iMC crawler dozers, typical add-on machine control system components mounted on the blade have been replaced with factory installed cab top GNSS (Global Navigation Satellite System) antenna, enhanced inertial measurement unit (IMU+), and stroke sensing hydraulic cylinders. These components along with the machine control monitor and controllers mounted inside of the cab are installed at the Komatsu manufacturing facility during machine assembly.