Product Description:
Minetech self-drilling hollow grouting anchor is comprised of a
hollow bar, a drill bit, a coupler, a centralizer, a plate and a
nut. It is a new type of bolt which can perform drilling, grouting
and anchoring in a single operation.
The hollow anchor bar of self-drilling hollow grouting anchor is
fully threaded, that can be cut to any length or extended according
to the needs of the project. Grouting through the hollow bar can
improve the grouting compactness, thereby improving the bond stress
to the rock and also improving the durability of the bolt.
Self-drilling hollow grouting anchor is especially suitable for
weak, broken and other difficult formations.
Features:
1. It can solve defects that unfilled grouting of traditional
mortar anchor bolt during the construction and can’t grouting with
pressure.
2. The operation is simple, cost is low, construction is convenient
and efficiency is clear.
3. It can realize grouting with pressure and reform foundation
surrounding rock conditions.
Technical Parameters:
| Size | Outer Dia.
(mm) | Inner Dia.
(mm) | Ultimate Load
(kN) | Yield Load
(kN) | Weight
(Kg/m) | | SSR32/20 | 32 | 20 | 210 | 160 | 2.83 | | SSR32/17 | 32 | 17 | 280 | 230 | 3.50 | | SSR32/15 | 32 | 15 | 360 | 280 | 4.00 | | SER32/21 | 32 | 21 | 210 | 160 | 2.60 | | SER32/19 | 32 | 19 | 280 | 230 | 2.95 | | SER32/17 | 32 | 17 | 360 | 280 | 3.50 | | SER32/15 | 32 | 15 | 405 | 320 | 4.00 | | SCR32/21 | 32 | 21 | 250 | 190 | 2.60 | | SCR32/20 | 32 | 20 | 280 | 230 | 2.83 | | SCR32/17.5 | 32 | 17.5 | 360 | 280 | 3.40 |
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Applications:
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.
Packing and Shipping:
Packed in Carton or Wooden Box.
Sample will be sent by Fedex, shipping time 7-10days, main order
will be shipped by sea.
Company Profile
Hebei Minetech Machinery Technology Co, Ltd. is an joint venture
enterprise with Europe Partner, which is located in Shijiazhuang
City, Hebei Province,China. Our company is specialized in
manufacturing and exporting of mining machinery, such as hydraulic
and pneumatic drill machine, roof bolter and drilling consumption,
like drill bit and drill rod with own factory in Shijiazhuang City.
With our rich expenience for over a decade and with professional
engineers andsales team, we focus on providing complete solutions
for mining machinery.
Target markets is gradually shifted from domestic market to
international market, products are exported to more than thirty
countries and regions, including Southeast Asia, the United States,
Germany, Britain, South Africa, Poland, Russia, Middle Asia, South
America and so on, and established a good brand and reputation
international market.
