Komatsu introduces the D155AXi-8 RC dozer
By Andrew Macklin
May 25, 2016 – Komatsu America Corp. introduced the new D155AXi-8 Radio Control dozer, Komatsu’s first radio controlled machine with intelligent Machine Control technology. It is the latest addition to the next generation of machine control and dozer technology.
“The D155AXi-8 Radio Control dozer is ideal for applications where customers may want to remove the operator from the machine and still maintain high levels of efficiency and productivity,” said Sebastian Witkowski, product manager, Komatsu America Corp. “This dozer meets customer demands in those applications, while utilizing Komatsu’s proven, automated, rough-cut-to-finish-grade technology,” Witkowski said.
For many operators, the ability to feel machine response to blade load is an important factor in effective dozing. This is naturally difficult for a radio control application where the operator is separated from the machine. The D155AXi-8 RC dozer is unique among radio control dozers thanks to the enhanced “intelligence” that automates operation from heavy dozing to fine grading to efficiently doze material. The D155AXi-8 RC has the ability to sense and control blade load, optimize the start of the cut, and minimize track slip.
Powered by a 354 HP Komatsu SAA6D140E-7, Tier 4 Final emissions certified engine, the D155AXi-8 emits 80 per cent less nitrogen oxides (NOx) than its Tier 4 interim predecessor. The variable geometry, turbocharged and after cooled, 15.24 liter diesel engine features Komatsu Diesel Particulate Filter (KDPF) and Selective Catalytic Reduction (SCR) systems and achieves fluid-neutral fuel economy.
An automatic gearshift transmission and lock-up torque converter team up to select the optimal gear range, depending on jobsite conditions and load. They are designed to provide maximum operation efficiency. The electronically-controlled transmission locks up the torque converter to transfer engine power directly to the transmission, eliminating horsepower loss and cutting fuel consumption by up to 10 per cent.
The patented Sigmadozer blade, designed to dig and roll up more soil at the blade’s center, holds more material, reduces digging resistance and dozes up to 15 per cent more soil while using less power, compared to a typical semi-u blade.
The D155AXi-8 radio control dozer, whether rented, leased or purchased, is covered by the Komatsu CARE program for the first three years or 2000 hours, whichever comes first.