R32 Mining Self Drilling Anchor Bolt Hollow Anchor Rods
DESCRIPTION:
Self drilling anchor bolt adopts wave-thread hollow bar, which has
great anchoring effect and can be cut according to demands. KSQ
also produces large-diameter self drilling anchor bar by adopting
advanced equipment and technology.
Self drilling anchor bolt is composed by hollow anchor bolt, anchor
nut, anchor plate, anchor coupler, drill bit, centralizer, and the
hollow anchor bars can be cut and lengthened by coupling on
request.
Functions:
Self drilling anchor system is an advanced system which can ensure
the anchoring effect for complex ground conditions. It can be
integrated with the functions of drilling, grouting and anchoring.
Conditions:
• Tunneling
• Mining
• Slope Stabilization
• Foundation Support
Features and advantages:
1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling.
Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to
narrow spaces.
6. It provides higher bonding stress than smooth steel pipe
depending on continuous wave thread.
Specification
Anchor bolt
| R25N | R32N | R38N | R51L | R51L | R51N | T76N | T76S |
Outside diameter (mm) | 25 | 32 | 32 | 38 | 51 | 51 | 76 | 76 |
Internal diameter (mm) | 14 | 19 | 16 | 19 | 36 | 33 | 52 | 45 |
Ultimate load capacity (KN) | 200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
Yield load capacity (KN) | 150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
Tensile strength, Rp0.2 (N/mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
Yield strength, Rp0.2 (N/mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Weight(Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8.0 | 16.0 | 19.7 |
Thread type (left-hand) | ISO10208 | ISO1720 | MAIT76 Standard |
| Steel grade | En10083-1 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. |
Machined steel bit or Casring steel bit |
FAQ
Q1: What’s your delivery time?
A: Commonly product need 20 days to produce, within 3 days if in
stock.
Q2: What’s methods of payments are accepted?
A: We agree T/T ,L/C ,West Union ,One touch ,Money Gram ,Paypal.
Q3: What about the Shipments?
A: Bases on other quantity .We can send it to you by Express ,by
Air ,by Sea ,and by Train.Or send the goods to your Chinese agent.
Q4: How to control the quality?
A: We should be checking & testing everyone button bit before
shipment.
Q5: Do you agree sample order ?
A: Yes ,we are welcome your sample order to testing our quality.
Q6: Can we select the button bit color?
A: Yes ,we have golden ,green ,black for your choice.
Q7: Can we change to our mark on the button bit?
A: Yes ,we can casting your company mark on the button bit.(Except
sample order)
Q8: Do you have after-sale service and warranty service ?
A: Any Quality or quantity problem once confirmed,we will be
compensate you the same. Any question or problem we will be reply
you within 24 hours.
Q9: Can I trust your company ?
A: Our company has been certificated by Chinese government ,and
verified by Ali baba Trade Assurance. 100% refund of the Trade
Assurance Amount .Ali baba can guarantee all of you payment .
