Alloy Steel Anchor Bolt R32 Hollow Self Drilling Rock Anchor Bolt (60252349021)

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Product Overview

Description


 


Anchor bolt 


Anchor bolt means a rod that transfers the structures or geotechnical load to a stable rock 


formations, it consists of rod, drill bit, coupling, plate, grouting stopper and nut. It has been 


widely used in tunnling, mining, slope stabilization, tunneldiseases treatment and roof supporting 


of undergroundworks. It is for loose ground(clay, sand friable etc.) Hollow anchor rod is made of 


seamless tube with high strength.


 


Features of hollow grounting anchor bolt 


• Particularly suitable for difficult ground conditions.  


• A high rate of installation since drilling, placing and grouting can be performed in one single operation.  


• Self drilling system eliminates the requirement for a cased borehole.  


• Installation with simultaneous drilling and grouting possible.  


• Easy installation in all directions, also upwards.  


• Suitable for working in limited space, height and in areas of difficult access.  


• Simple post grouting system. • Hot-dipped galvanizing for corrosion protection  


 


Applications in Tunneling & Ground Engineering   


• Radial bolting  


• Slope stabilization  


• Forepoling  


• Micro injection pile  


• Face stabilization  


• Temporary support anchor  


• Portal preparation  


• Soil nailing 


 


Self-Drilling Anchor Bolt Description 





























































































 



R25N



R32N



R32S



R38N



R51L



R51N



T76N



Outside Diameter (mm)



25



32



32



38



51



51



76



Internal Diameter (mm)



14



19



16



19



36



33



52



Ultimate Load Capacity (kN)



200



280



360



500



550



800



1600



Yield Load Capacity (kN)



150



230



280



400



450



630



1200



Tensile Strength, Rm (N/mm2)



800



800



800



800



800



800



800



Yield Strength, Rp0.2 (N/mm2)



650



650



650



650



650



650



650



Weight (Kg/m)



2.3



3.2



3.6



5.5



6.5



8.0



16.0



Steel Grade



EN10083-1 (Alloy Structure Steel)



Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical.



 


 


Drill Bit




























































 



R25N



R32N



R32S



R38N



R51L



R51N



T76N



T76S



diameter(mm)



41,51



51,76,90



90,100,110,115,130



130,150,160,180,200



Hardened cross bit


(EX)



Hardened cross bit for loose to medium dense condition with small boulders.



Tungsten cross bit


(EXX)



TC cross bit for soft to medium rock for mations



Hardened button bit


(ES)



Hardened buuton bit for unconsolidated rock with boulders.



Tungsten carbon button bit


(ESS)



Button bit with TC inserts for medium rock for formations.



Hardened arch bit


(EC)



Hardened drill bit with optimized geometry for unconsoliddated soil 


with small boulders.



Tungsten carbon arch bit


(ECC)



TC drill bit with optimized geometry for soft to medium rock formations.



Hardened drop center bit


(EY)



Hardened cross bit for loose to medium dense ground conditions



TC drop center bit


(EY)



TC drill bit for soft to medium rock formations.



Casting clay bit


(EW)



Casting clay bit with optimized geometry for very soft to soft caly.



 


T-Thread Anchor Bolt Technial Data










































































































Bar Type



Outside Diameter


(mm)



Inside Diameter


(mm)



Cross section 


(mm2)



Ultimate Load


 KN



Yield Point 


KN



Weight


(kg/m)



Thread Left/


Right Hand



30/11



30



11



446



320



260



3.3



Lift or right



30/14



30



14



395



260



220



2.9



Lift or right



30/16



30



16



382



220



180



2.7



Lift or right



40/16



40



16



879



660



525



7.0



Lift or right



40/20



40



20



726



539



430



5.6



Lift or right



52/26



52



26



1337



929



730



10.0



Lift or right



73/53



73



53



1160



1630



970



12.3



Lift or right



73/56



73



56



1094



1414



785



11.1



Lift or right



73/45



73



45



2265



1630



1180



17.8



Lift or right



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60252349021
0.0119 s.