Product Name: Expansion Shell Anchors BoltMaterial: carbon
steel for Expansion Shell, cast iron for Rock anchor boltsFinish:
Oil RustyProcess: Forging for Expansion Shell, casting for Rock
anchor boltsApplication: Rock anchor used in sound rock or concrete
allows one-sided forming of wallsExpansion 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
supportSpecificationProductio ProcessApplication Expansion
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.
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. 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 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. Once the assembly is in
place, a sharp pull on the end of the bolt will seat the anchor.
Tightening the bolt will force the cone further into the wedge
thereby increasing the anchor force. /* March 10, 2023
17:59:20 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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