Komatsu Introduces Two New Models
Komatsu America Corp. recently unveiled a pair of new earthmoving machines—a mining-class bulldozer and a quarry-class wheel loader—both of which offer a number of performance improvements over previous versions. The company’s new D375A-6 crawler dozer, weighing 157,940 lb and powered by a Komatsu SAA6D170E-5 diesel rated at 636 gross hp, has been designed to compete for market share against Caterpillar’s D10T. The D375A-6’s more powerful engine, offering an 85 net hp increase over the previous D375A-5E0 model, is the same unit used in Komatsu’s PC 1250LC-8 hydraulic excavator (rated at 672 hp) and in the HD465-7 rigid body hauler truck (rated at 715 hp). According to Komatsu, an updated full-U 28.8-yd3 blade on the D375A-6 allows for increased production without increasing blade width or reducing digging force; the shape of the blade is similar to the next-size-class-larger Komatsu dozer, the D475A-5EO. Komatsu says the new dozer includes 16 new standard mining features including high-mounted head lights; battery and starter isolator box; centralized grease points; and manual engine stop switches. Optional mining features include right and left hand platforms with handrails and HID work lights.