Hello; We have gathered this weeks mining machines from our sources and submitted clips. We have put an educational spin on our video by providing educational commentary to help you understand what exactly is happening. Truly amazing specially the last one that thing is out of this world,standing 30 stories tall I can’t even imagine what it would be like to sit in the operator’s seat just one time. The Komatsu Super Dozer was Discontinued several years ago. It actually was brought to a job site from Komatsu on 6 flat bed trailers because it was huge. I seen these with my own eyes working. You have to see the Super Dozer with your own eyes to believe it's size!