Article: Ritchie Bros. to sell enormous, 820-ton hard rock tunnel boring machine in unreserved Los Angeles auction.

450-foot long "unique" machine used in Arrowhead Inland Feeder project is at auction site for preview by interested bidders

LOS ANGELES, April 24 /PRNewswire-FirstCall/ -- Ritchie Bros. Auctioneers (NYSE and TSX: RBA), the world's largest industrial auctioneer, is selling a single shield 450-foot long, 820-ton, self-propelling, hard rock tunnel boring machine (TBM) with trailing gear at an upcoming three-day unreserved auction in Los Angeles from May 20 to 22, 2009. The TBM is 19 feet in diameter and was built to specification by German-based manufacturer Herrenknecht for the underground mining of the Arrowhead West Tunnel, just one of three water tunnels ...

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