Product Description:
Friction bolts have been used internationally in mining for decades
and are considered the simplest form of ground support available in
metal mining. Compression of the high tensile steel "C" shape into
a hole diameter smaller than the tube generates a load transfer
from the steel to the rock. A steel ring is fixed to the collar end
of the tube that will retain a plate on the installed tube to
establish compressive force against rock.
Available in either black or hot dip galvanised. Variety of
diameters (34 mm, 40 mm and 47 mm) and various lengths from 600 mm
to 3,000 mm
Used in the development and production headings for immediate
support with quick and easy installation.
Product Installation
1.Drill holes according to specifications: Use a rock drill to
drill holes in the ceiling or walls. The diameter of the hole will
be slightly smaller than the diameter of the bolt.
2.Pay attention to keeping clean: Compressed air is recommended to
clean the holes and remove dust and loose particles.
3.Insert the bolts: Insert the split friction bolt into the hole
that exactly lines up with it, making sure the tray is resting on
the surface of the ceiling or wall.
4.Installation: Place the installation tool on the bolt head and
tap with a hammer until the bolt is fully installed. Tool and
hammer strikes must be perfectly aligned with the bolt axis to
avoid distortion. The bolt head deforms slightly to make contact
with the ceiling or wall surface, creating friction that helps
maintain stability.
5.Verification check: Verify bolt installation to ensure it is
placed correctly and has the proper tension.
Technical Parameters:
| Model | 33mm Split Set Stabilisers | | Length | 1200mm/Customizable | | Wall Thickness | 2-2.5/Customizable | | Weight | 1.68KG |
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Applications:
47mm Friction Bolt is mainly used as primary support in mechanized
jumbo development and production mining.
It is one of the standard Friction Bolt widely used in worldwide
projects of mining, tunnels, and dams as rock support material.
Different thicknesses are available, such as 3.0mm, 3.2mm
Both galvanizing and black are available.
Packing and Shipping:
Packed in bundle
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.
