Spyder walking/climbing excavators can work effectively on very steep slopes. Frequently we do work in areas that are too steep to walk on. This picture shows one of our spyders drilling holes in the left abutment at Big Tujunga Dam in southern California. At this site the machine was put into place using a large crane. Spyder excavators are really handy. Often we wonder why there aren't more of them around the United States. It might have something to do with a shortage of qualified operators (the factory training programs are all in Europe). Once you've had a spyder work on your project, you start wondering how you ever got along without one.
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