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R38N SDA Self Drilling Grouting Anchors and Drill Bits for Slope Stabilization
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. -
Rock Bolt Threaded Hollow Bolt Full Threaded Steel Self Drilling Rock Bolt Mine construction OEM Customize
Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micropiles, it is also widely used in the railway system, metro project etc. It can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formations. The unconsolidated ground condition favor the self-drilling anchor bolt technique for fast and simple method of installation compared to the traditional method.
Features:
1, Self drilling anchor system has two performances: the one is drilling, the other one is grouting. It features a hollow bore for flushing, or simultaneous drilling and grouting.
2, Self drilling anchor system is reliable, efficient and convenient, which makes high piling output possible.
3, We can also make the Hot-Dip Galvanizing Corrosion Protection according to EN ISO1461
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ull threaded steel self drilling rock bolt / hollow anchor bar / anchor rods
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc projects.
IBO rock bolt / self drilling anchor bolt / hollow anchor bar
Advantages and Characteristics as below:
1. No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.
2. Fast drilling and installation, because drilling, installation and grouting are in a single operation.
3. Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.
4. The hollow core not only serves for flushing during drilling, but also for grouting after drilling.
5. Continuous threads ensure the bars can be cut and coupled at any point, or extended.
6. Different anchor bits are available for different ground conditions.
R thread anchor bar or called rock bolt, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.
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rock bolt / self drilling anchor bolt / hollow anchor bar
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc projects.
rock bolt / self drilling anchor bolt / hollow anchor bar
Advantages and Characteristics as below:
1. No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.
2. Fast drilling and installation, because drilling, installation and grouting are in a single operation.
3. Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.
4. The hollow core not only serves for flushing during drilling, but also for grouting after drilling.
5. Continuous threads ensure the bars can be cut and coupled at any point, or extended.
6. Different anchor bits are available for different ground conditions.
R thread anchor bar or called rock bolt, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.
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China Split set rock bolts Split set rock bolts FB33 FB46 for underground mining
Friction anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles,
its also widely used in the railway system, metro project, etc. It can be installed in sites with weak rocks,
loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formations.
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self drilling anchor system SSR32 EX drill bit for self drilling anchor bolt
Introduction Of Hollow Drilling Mining Rock Grouting Anchor Bolt
1, Hollow Drilling Mining Rock Grouting Anchor Bolt consists of hollow core with continuous hot-rolled outside thread
2, Hollow Drilling Mining Rock Grouting Anchor Bolt can application as injection anchor without casing, especially for non-stable boreholes
3, self-drilling installation, utilization of the anchor bar as drill rod with a single-use drill bit
4, easy extension of the anchor bars by anchor coupler
5, grouting or development of the grout body either simultaneously with drilling using a rotary injection adapter or afterwards
6, assembly of the anchor head with the anchor plate and the nut, stressing and lockingParameter of Hollow Drilling Mining Rock Grouting Anchor Bolt
Bar R32L R32N/21 R32N/18.5 R32S R32SS Outside Diameter (mm) 32 Internal Diameter (mm) 22 21 18.5 17 15 Cross Sectional Area (mm2) 356 363 433 440 522 Ultimate Load (kN) 260 280 280 360 405 Yield Load (kN) 200 230 230 280 300 Weight (kg/m) 2.8 2.85 3.4 3.45 4.1 Thread Type ISO10208
Type of Steel EN10083-1 Thread (Left / Right hand) Left or Right Length (m) (1) x 2, x3, x4, x5, x6, x7, x8, x9 Optional of Anti-corrosion
Hot-dipped Galvanization: ISO 1461 Epoxy Coating Bending properties up to standard ISO 1519
Impact properties up to standard ASTMD 2794 Adhesion up to standared ISO 2409:2007
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R32S Anchor Tool Self Drilling Anchor Bolt Threraded Bar Anchor Rod
Self-Drilling Anchor Tools: 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.
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R38L 1000mm to 8000mm Anchor Tool Self Drilling Anchor Bolt Threraded Bar Anchor Rods
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. -
Hollow grouted IBO self drilling tunnel rock bolt mining anchor bolt bit coupling
Introduction Of Hollow Drilling Mining Rock Grouting Anchor Bolt
1, Hollow Drilling Mining Rock Grouting Anchor Bolt consists of hollow core with continuous hot-rolled outside thread
2, Hollow Drilling Mining Rock Grouting Anchor Bolt can application as injection anchor without casing, especially for non-stable boreholes
3, self-drilling installation, utilization of the anchor bar as drill rod with a single-use drill bit
4, easy extension of the anchor bars by anchor coupler
5, grouting or development of the grout body either simultaneously with drilling using a rotary injection adapter or afterwards
6, assembly of the anchor head with the anchor plate and the nut, stressing and lockingParameter of Hollow Drilling Mining Rock Grouting Anchor Bolt
Bar
R32L
R32N/21
R32N/18.5
R32S
R32SS
Outside Diameter (mm)
32
Internal Diameter (mm)
22
21
18.5
17
15
Cross Sectional Area (mm2)
356
363
433
440
522
Ultimate Load (kN)
260
280
280
360
405
Yield Load (kN)
200
230
230
280
300
Weight (kg/m)
2.8
2.85
3.4
3.45
4.1
Thread Type
ISO10208
Type of Steel
EN10083-1
Thread (Left / Right hand)
Left or Right
Length (m)
(1) x 2, x3, x4, x5, x6, x7, x8, x9
Optional of Anti-corrosion
Hot-dipped Galvanization: ISO 1461 Epoxy Coating
Bending properties up to standard ISO 1519
Impact properties up to standard ASTMD 2794 Adhesion up to standared ISO 2409:2007
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blast furance tap hole drill rod drill bar drill bit
A drill rod, for blast furnace taphole drilling consists of a steel tube, with a drill tip welded to one end, the novelty being that the drill tip consists of two or more steel profile sections uniformly distributed about the steel tube periphery, the sections being fixed to the tube by weld seams and projecting beyond the tube end by a distance in the direction of the longitudinal axis of the tube.
A tool for blast-furnace tap-hole drilling involves body with a cutting component, enlarging bit, drill rod with cutting structure, which longitudinally is disposed inside the hollow body with a cutting component, and device for control of drilling rod length, placed on a body above the cutting component.
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opening machine adaptor
blast furnace tap hole opening machine adaptor
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