The Cat 70 round bottom is 9 yards level and 11 yards heaped, weighing 18,800 pounds. The width of cut is 8'. Tires are usually 16:00 x 20 or 16:00 x 24 on the front, and 18:00 x 24 or 21:00 x 24 on the rear. We put 12" sides on them to make them 13 yard scrapers. The scrapers are converted over to hydraulics, sandblasted, repainted, and completely refurbished.
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