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Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement

Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement

  • Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement
  • Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement
  • Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement
Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement
Product Details:
Place of Origin: China
Brand Name: Mirco
Payment & Shipping Terms:
Minimum Order Quantity: negociated one
Price: negociated one
Packaging Details: wooden box or plastic box
Delivery Time: 10-15 days
Payment Terms: T/T, L/C, Western Union
Supply Ability: 100000 Piece/Pieces per Month
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Detailed Product Description
Model: Anchor Bolt Type: Self Drilling
Processing Type: Forging Use: Reinforcement
Advantage: Increasing Bond Capacity Size: 1m-6m
Packing: Bundle
High Light:

steel anchor bolts

,

self drilling anchors

Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement


 

The self-drilling hollow bar anchor system consists of a hollow threaded bar with an attached drill bit that can perform drilling, anchoring and grouting in a single operation. The hollow bar allows air and water to freely pass through the bar during drilling to remove debris and then allow grout to be injected immediately after drilling is completed. Grout fills the hollow bar and completely covers the entire bolt. Couplings can be used to join hollow bars and extend the bolt length while nuts and plates are used to provide the required tension.

Self-drilling hollow bar anchor system is the most common used system for rock mass stabilization, especially in tunneling, underground mining and ground engineering industry. It is mainly used for the supporting engineering in the loose and broken rock stratal with difficult to drilling hole. It provides the optimal solution for soil nailing, lock bolting, micro-piling.

Self-drilling hollow bar anchor system fulfills current and increasing demands of the tunneling, mining industry and ground engineering for safer and faster production. The system provides advantages for all areas of its applications, where boreholes would require the time consuming drilling with casing systems in unconsolidated or cohesive soil.

 

Features and Advantages

  • Particularly suitable for difficult ground conditions.
  • An efficient installation since drilling, placing and grouting can be performed in a single operation, saving both time and money.
  • Self-drilling system eliminates the requirement for a cased borehole in collapsing soils.
  • Fast, single-step anchoring system with simple equipment able to work with standard track drill (top hammer) or hand-held drilling equipment, eliminating the need for larger casing rigs.
  • Installation with simultaneous drilling and grouting possible, and post grouting system is simple.
  • Continuously drilling and grouting under high pressure causes the grout to permeate into looser soils and creates a bulb-effect for increased bond capacity.
  • Easy installation in all directions, also upwards, and similar installation methods for all ground conditions.
  • Suitable for working in limited space, height and in areas of difficult access.
  • Galvanizing for enhanced corrosion protection is available if necessary.
  • Multiple ranges of drill bits suitable for different ground conditions.
  • Continuously threaded bar pattern can be cut and coupled anywhere along its length to achieve all lengths.

Specification

 

Anchor bolt

Item R25N R32N R32S R38N 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, Rm (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 MAI T76 Standard
Steel Grade EN10083-1 (Alloy Structure Steel)
Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Anchor Plate

Item R25N R32N R32S R38N R51L R51N T76N T76S
Dimention(mm) 150*150 200*200 200*200 200*200 200*200 250*250 250*250 250*250
Thickness(mm) 8 10 12 12 20 40 40 40
Hole diameter(mm) 30 35 35 41 60 60 80 80
Weight(KG/PC) 1.4 3 3.7 3.6 8.8 18.5 18 18
Cold deformed with geometry

 

Anchor Coupling

Item  R25N R32N R32S R38N R51L R51N T76N T76S
Outside diameter(mm) 35 42 42 52 63 63 95 95
Length(mm) 120 145 160or190 180 180 200 200 200
Weight 0.45 0.7 0.75 1.4 1.7 1.9 6.4 6.4
  Machined steel coupling middle stop

 

Drill Bit

Item 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

 

Anchor Nut

  R25N R32N R32S R38N R51L R51N T76N T76S
Key size(mm) 41 46 46 50 75 75 100 100
Length(mm) 135 45 45 55 70 70 80 80
Weight(kg/pc) 0.25 0.35 0.35 0.5 1.55 1.55 3.6 3.6
  Machined steel nut or casting steel nut

 

Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement 0

 

Mining Rock Bolts Self Drilling Anchor System Drilling Tools For Reinforcement 1

 

 


About us 
 
MIROC® Rock Drilling Tools are Rock Drilling Tools Brand by KSQ Tecnologies (Beijing) Co. Ltd.
 
KSQ Technologies (Beijing) Co. Ltd. provides exceptional technical know-how in development, production, and application. The company has adopted advanced manufacturing processes to ensure high quality steels and tungsten carbide inserts for its rock drilling accessories. Its personnel understand clients’ drilling needs, and have the service skills to recommend the right drilling tools for the job. Its experienced product developers can also create custom tools. Furthermore, the company’s development team introduces innovative products each year – tools that are rigorously tested in the field and proven
to perform beyond industry expectations.

 
MIROC® Rock Drilling and Ground Support Tools include:
 
Integral Rods
Plug Hole Rods
Tapered Drilling Tools
Extension Drilling Tools
Drifting and Tunneling Tools
Reaming Tools
Shank Rods
Shank Adapters (Striking Bars)
Down-the-hole (DTH) Bits
Down-the-hole (DTH) Hammers

 

Contact Details
KSQ Technologies (Beijing) Co. Ltd

Contact Person: Mr. Yingkai Zhang

Tel: +86 18501231988

Send your inquiry directly to us (0 / 3000)

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