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Sunrise Foundry CO.,LTD |
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Hollow Grouting Anchor Bolt with Expansion Shell Mechanical Roof Bolt
Description
Expansion shell bolts are a common style of area ground support. A point anchor bolt is a metal bar between 20 mm – 25 mm in diameter, and between 1 m – 4 m long There is an expansion shell at the end of the bolt which is inserted into the hole. As the bolt is tightened by the installation drill the expansion shell expands and the bolt tightens holding the rock together. Mechanical bolts are considered temporary support
Related Products
Expansion shell, rock bolt, bearing plate, washer, mechanical bolt, coupling bolt
Application
