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Contact person:Victor Yu
Tel: +86 25 83613201
Fax: +86 25 84677399
Address: No.987 Qingshuiting East Road, Jiangning Economic & Technological Development Zone, Nanjing, Jiangsu, China
Swellex rock bolts
    The Swellex is a rock bolt made of a welded tube folded on itself and sealed at one extremity. It is expanded using a high pressure water flow provided by a special pump. The bolt is expanded inside a borehole, and the installation processing easy and very similar to other rock bolts. This makes Swellex accessible to all operators.

As mine and tunnel safety requirements have become more stringent, the reliable and versatile support available with Swellex rock bolts has made them the best option for most problem solving and for daily use.


  Unit Rock bolt model
ER120 ER160 ER240
Material   S355MC S355MC S355MC
Max. loading kN 110 160 240
Min. elongation % 10 10 10
Expansion pressure  bar 300 240 300
Thickness mm 2 2 3
Bolt hole diameter mm 32-39 43-52 43-52
Length M 1.0-8.0 1.0-8.0 1.0-8.0

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