Komatsu’s 930E-2 was dubbed by many heavy equipment enthusiasts as the “world’s largest capacity dump truck.” It enjoyed this title until 1998, when Caterpillar introduced the Cat 797. With such a prodigious crawler tractor included in its product line, it was only fitting that Komatsu also produce a complementary machine in 1995. Today, the 1,065 horsepower (794.2 kW) 12-cyclinder D575A is available in two updated models: the D575A-3 bullldozer/ripper and the D575A-3 SD (Super Dozer), a dedicated bulldozer. The first D575A super dozer produced went into operation at a West Virginia coal mine.Īt the mine site, the D575A helped increase the average yards per scheduled operating hour from approximately 375 yards to 750 yards, proving the decision by the mine owners to purchase the machine was the right decision for increasing production. In 1996, Komatsu added a super dozer model, the D575A-2SD, to its line of super-sized crawler tractors. Komatsu field-tested the D575A-2 from 1989 until 1991, and then began full production of the super crawler tractor. The first D575A produced at Komatsu Ltd.’s Osaka, Japan facility was the D575A-2 SR (Super Ripper) which followed an earlier prototype which never went into production because of a downturn in the economy. Size differences aside, both the D11 and the D575A are machines built specifically for the mining and quarry industry and the environments within which they operate. The D11 is only 13.4′ tall and its blade capacity is 74.9y - a difference of approximately 3″ and 15y. However, when compared to the D575A, the D11 comes in short both in height and blade capacity. The D575A’s closest contender, both in size and blade capacity, is the Caterpillar D11. The Super Dozer Blade alone weighs in at a hefty 22,000 lbs. Chat Komatsu D21A-5 Track Dozer - 3,612 Hrs. Ground material that would take the average person approximately 720 wheelbarrow loads to move, the Komatsu 575A can effortlessly clear in one pass of its patented 90y capacity Super Dozer Blade. komatsu dozer size comparison In the chart below, the Komatsu D475A-S5D has. long - over three times the dimensions for an average car - and weighs in at close to 300,000 lbs. Primarily designed as a Bulldozer, but also used for push loading scrapers, and ripping rock overburden. With a standard blade attached, it measures 24’3″‘ wide by 38.5 ft. Models in: Pages using ISBN magic links, Caterpillar crawler tractors, Bulldozers, and 4 more Caterpillar D11 View source The Caterpillar D11 series is a giant of a Bulldozer for the mining industry. Of course both of the foregoing numbers include intermediate CPT Rebuilds.With its gigantic size and capacity, it’s easy to understand how the Komatsu D575A crawler tractor has earned the bragging rights as “the largest operational crawler tractor in the world.”Įverything about the D575A crawler tractor is super-sized: From track bottom to cab top, it averages 16′ high, dwarfing an average-sized man by over 10′. Even our 994's we are forecasting a 90,000 hour total life, and I hope to get 100+. Our haul trucks (789) are planned for 100,000 hours and will likely go more than that, I'd say 120k. That's 6k hours/1 year for the complete machine and 12k hours/2 years for Power Train components. In essence it's a CPT Rebuild on steroids and the machine is given a new Serial Number afterwards and the complete machine comes with an original factory warranty. To digress, there is one stage above a CPT Rebuild, that is a Cat Certified Rebuild (CCR). The job is guaranteed and in our case the main components all carry a 12 month warranty, the rest of the machine 6 months. Right down to the frame and back planned for 24 working days IIRC and brought in under target. Somewhere here I posted photos showing the job on a D10T. I will say that I havent seen a single Komatsu dozer get past 5,000. Our target (very much Mine Ops efficiency dependent) is 7,000/year.Ī Certified Power Train Rebuild is done by the Cat dealer. a 475 WILL out push a D11 in good dirt but try using a 475 in the pit and you are asking for trouble they are not as nimble on there feet as a D11 and at the end of the day you can still walk off a cat but after a. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Our machines run 24/7, so 6000 hours/year as an absolute minimum. This document was uploaded by user and they confirmed that they have the permission to share it.
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