Once the assembly is in place, a sharp pull on the end of the bolt will seat the anchor.
The length of the hole should be at least 100 mm longer than the bolt otherwise the bail will be dislodged by being forced against the end of the hole. The cone is screwed onto the threaded end of the bolt and the entire assembly is inserted into the hole that has been drilled to receive the rockbolt. The components of a typical expansion shell anchor are a tapered cone with an internal thread and a pair of wedges held in place by a bail. Mechanical bolts are considered temporary supportĮxpansion shell rock bolt anchors come in a wide variety of styles but the basic principle of operation is the same in all of these anchors. ISO9001 China Foundry Custom Parts Ductile Iron Sand Casting Inquiry Basket Qingdao Xinghe Machinery Co., Ltd. As the bolt is tightened by the installation drill the expansion shell expands and the bolt tightens holding the rock together. 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. Our foundry utilizes automated green sand, air set and no bake molding procedures to provide. Process: Forging for Expansion Shell, casting for Rock anchor boltsĪpplication: Rock anchor used in sound rock or concrete allows one-sided forming of wallsĮxpansion shell bolts are a common style of area ground support. Mabry Iron Castings is a modern gray and ductile iron foundry, located in the Texas Gulf Coast Region, which is a supplier of gray and ductile iron castings, aluminum die casting parts, in sizes ranging from 1 lb. Material: carbon steel for Expansion Shell, cast iron for Rock anchor bolts
Product Name: Expansion Shell Anchors Bolt
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