Hollow Grouted Self Drilling Tunnel Rock Bolt Mining 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 locking
Advantages:
• 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.
• Suitable for working in limited space, height and in areas of
difficult access.
• Simple post grouting system.
Hollow Drilling Mining Rock Grouting Anchor Bolt Specification
| Self-Drilling Anchor Bolt Specification |
| Specification | 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 | 200 | 280 | 360 | 500 | 550 | 800 | 1600 | 1900 |
| Yield Load Capacity (kN) | 150 | 230 | 280 | 400 | 450 | 630 | 1200 | 1500 |
| Tensile Strength, Rm | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Yield Strength, Rp0.2 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Weight (Kg/m) | 2.3 | 3.2 | 3.6 | 5.5 | 6.5 | 8 | 16 | 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 |
About US
KSQ Technologies (Beijing) Co. Ltd. is a diversified enterprise
based in Beijing, China, offering a portfolio of products that help
contribute to a better bottom line and increase workplace safety
for the construction and mining industries.
KSQ Technologies (Beijing) Co. Ltd. has significant experience and
know-how in the supply of materials, components, finished goods,
specially designed/engineered equipment, and services from China.
The company caters to medium to large scale clients who are doing
projects and capital expansion, as well as to firms who require
support with consumable products, maintenance, and repair
operations. Our operations are based on the unique expertise of our
people and knowledge with customer processes.
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
