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

International leaders in mine support technology. Our strategy is to collaborate with our customers to develop ground support solutions that improve safety and mining efficiencies. We specialise in difficult ground conditions. In order to achieve this, Epiroc has considerable in-house Rock Engineering, Mining and Engineering competencies within

Swellex Rock Bolt - Buy Rock Bolt at best price of Rs 100/piece(s) from Srons Engineers. Also find here related product comparison | ID: 12674032012.

In general Swellex bolts strengthen the rock mass through a combination of friction and mechanical interlock at the rock-bolt interface. The anchoring mechanism of the Swellex bolt is actually different in hard and soft rocks. In hard rock, the secondary contact stress, induced by the mechanical interlock of the asperities at the borehole wall, plays a major role in the anchoring, whereas the primary contact stress, created by the bolt expansion does not contribute much.

The Swellex rockbolt is a sealed steel tube folded on itself which upon installation is expanded with high water pressure offering strong performance and interaction with rock mass,

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

Semantic Scholar extracted view of "Analysis of Swellex bolt performance and a standardized rockbolt pull test datasheet and database" by A. Soni.

The combined product portfolio includes Swellex rock bolts and MAI SDA anchors with all necessary accessories. The strategy to act as “The professional 

Our MD bolt is a Patented dynamic capable friction bolt with integrated point anchor. The bolt is installed in a 1 pass process, is capable of holdi

The EXRB Expandable Rock Bolt is a full column anchored rock bolt that forms a mechanical interlock between the entire bolt and the borehole wall. When.

SSAB ERB (Expandable Rock Bolt) is the instant solution for rock reinforcing in underground mines and tunnels. Just add water, no chemicals.