metis - Metis - leader anchor bolt manufacturer
last updated on: 30/09/16 11:03AM
   Commonly exsists in all types of underground works with Metis hollow threaded bar system [16/12/15 09:33AM]   
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The hollow threaded bar adopts hollow design,connects drilling,anchoring and grouting together,the borehole of the hollow threaded bar can be regarded as high pressure air-wind channel and injection pass.
With hollow design,the hollow bar can acquire greater steel stress and high anti-shearing strength in comparison with ordinary anchor bar without hollow part.
Commonly exsists in all types of underground works with weak surrounding rock, fault fracture zone, the complex geological conditions highland stress large deformation, to the construction of rock anchor brought great difficulties, especially in the hole collapse in severe and require expertise bolt case, universal bolt powerless.
Metis hollow threaded bar system offers maximum flow with minimum resistance during high pressure flushing and grouting constructions. The thread form of hollow bar anchor system is a unique Metis feature that provides a lower thread pitch angle to supply easier coupling department without “locking up”, than traditional rod threads during installing operations.
If you have any question about Siorock products please don't feel any hesitate to contact us at any time,we uphold principle that"interity is the foundamental,quality is the life,service is the soul".Our professional service team are waiting for you and we will try our best to give you the best solutions. 





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