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Device for Tube Extraction

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insert wedges
extract tube
number of wedges
4
5
6
7
8
A ring with a conical hole is placed over a tube to be extracted. Wedges are inserted between the ring and the tube. As the ring is lifted with hydraulic cylinders, the wedges grip and extract the tube. This kind of device is used, for example, in civil engineering for extracting stop tubes during the construction of diaphragm walls.
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