1.Sinorock hardened tri-crescent drill bit 2.It is most crucial part 3.ISO9001 2008 4.The quality is stable. Sinorock hardened tri-crescent drill bit Drill bit is crucial part of rock drill.We can offer a large range of drill bits to suite the changing geology encountered durig project, the details are as follows: Size Description R25N R32L/N/S R38NR51L/N T76N/S X Forged cross-cut drill bit Φ42/ ...
Self-drlling anchor bolts(R76S), - Particulary suitable difficult ground conditions - A high rate of installation sin The Self Drilling Anchor Bolts is a unique anchoring systems and is today's answer to the increasing demands of the tunnelling industry and ground engineering for safer and faster production. The system provides advantages for all areas of its applications, where boreholes would ...
Hollow Self-drilling Anchor Bolt : Applications :The product is mainly used for weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. In forepoling of the tunnel and a variety of slope retaining in the supporting work well to reach the ideal support effect.For permanent anchor bolt(soil nails) applications, we provide two practical ...
Self-drilling Rock Bolt used as an efficient anchoring means, in tunnel pre-support, slope stabilization , coast, mine, Structure of self-drilling bolt I. Self-drilling hollow anchor bar Outer sidediameterAverageInternaldiameterEffectiveexternaldiameterAver.eff.CrosssectionalareaUltimateloadcapacityYieldloadcapacityAveragetensilestrengthRmAverageyieldstrengthRp0,2TheoricalweightThreadtype ...
1. Self-drilling anchor 2. Material: seamless steel pipe 40Cr /EN 10083-1 3. Common groutable 4. With high strength Self-drilling anchor is made of seamless steel pipe with thick wall. It consists of anchor rod, plate,nut, coupler,grouting stopper and drill bit. It is easy to cut through various rocks with a drill bit at the anchor head. With the continous international standard wave-shape thread ...
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