Swellex bolts is a kind of rock bolt, used for mine and tunnel. Various sizes of rock bolts in our factory. Whatsapp: +86 19937123680.

74 3.1.9 TUNNEL ENGINEERING – SWELLEX ROCK BOLTS OR SIMILAR Graham Grobler 309 213 800 Link: (Describes how Swellex rock bolts work) Since its introduction 30 years ago (as at ), the Swellex rock bolting system has gained wide recognition in the mining and tunnelling industries. The Swellex is a rock bolt made of a welded tube folded on itself and

Potentia Thixo is a two-component pumpable resin that simplifies the installation of rockbolts and cable bolts whilst improving installation quality. Pre-stressing units Inflatable devices designed for the safe and efficient installation of elongate support such

Swellex rock bolts This expandable rock bolt is more complex to manufacture than a MAI SDA. The steel profile is pressed into shape and a bushing is welded on the open end-piece. As pressurised water is used to install a Swellex bolt in the hole, leakages are not wanted. That’s why each and every bolt is tested

The Swellex bolt is a folded steel tube, which is inserted into a pre-drilled hole in the rock. Water is blasted into the tube at high pressure, blowing out the fold and expanding the tube into the exact shape of the hole, adapting to every irregularity.

EXRB EXPANDABLE ROCK BOLTS. ROCK STABILIZATION. DESCRIPTION. The EXRB Expandable Rock Bolt is a full column anchored rock bolt that forms a mechanical 

Ltd. (the manufacturer of the Swellex bolt), for their assistance and for providing the background information regarding Swellex bolts and pull testing. I would also like to thank the various individuals at different mining companies for their participation and for providing the pull test information that was essential to producing

Jul 05,  · 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 process is easy and very similar to other rock bolts. This makes Swellex accessible to all operators.

The Swellex rock bolt is a sealed steel tube folded on itself and expanded with high water pressure offering: • Strong performance and interac- tion with rock 

Swellex Rock Bolts tube are used to control the roof fall of the fully mechanized mining face, and can also be used in the construction of 

China Anto 28mm 38mm Swellex Bolts Manufacture, Visit Here to Find the Anto 28mm 38mm Swellex Bolts That You are Searching for. Mr. Richard . What can I do for you? +8617753832266. ; Contact Now; Send Inquiry 25mm Threaded Steel Rock Bolt;