Model NO.
MF-46
Certification
CE, ISO 9001:2000, ISO 9001:2008
Standard
GBSurface Treatment
GalvanizedManufacturing Process
Machining
Material
Q235, Q345, 16mn,20 Mnsi
Diameter
46mm
Thickness
2.5mm/ 3.0mm
MOQ
100PCS
Plate Size
150* 150mm
State
New
Delivery Time
Within 2-3 Days
Trademark
better onward
Transport Package
in Bundle
Specification
1600-3000mm length
Origin
China
HS Code
8431432000
Introduction of
Friction bolt
is a new bolt of full length anchoring and active reinforcing surrounding rock.
And it is a high strength steel pipe with longitudinal slit.
Application:
Mining Friction bolt
mainlyuse in supporting mine laneway and mountain tunnel, secondary support of mine tunnel.
Parameter of
Friction bolt
Series
specifications
(Diameter* thickness)
Bearing capacity
high-strength plate
Length (mm)
(KN)
High-strength Plate(Domed)
Bearing capacity (KN)
MF-33
33×2.5
100
120×120×5.0
≥100
914-3000
33×3.0
120
120×120×6.0
≥120
914-3000
MF-39
39×2.5
130
150×150×5.0
≥150
1200-3000
39×3.0
150
150×150×6.0
≥180
1200-3000
MF-42
42×2.5
140
150×150×5.0
≥150
1400-3000
42×3.0
160
150×150×6.0
≥180
1400-3000
MF-47
47×2.5
150
150×150×6.0
≥180
1600-3000
47×3.0
170
150×150×6.0
≥180
1600-3000
We Better Onward as factory could customize friction bolt according to your detailed requirements.
We also have MF-40,MF-43,MF-46,MF-49
series.
Images of Friction Bolt
Install the friction bolt in a bore which smaller than the pipe diameter.
At this time, three forces will be applied to the surrounding rock.
1. Friction bolt entire length range give radial pressure on the hole wall.
2. friction force to prevent the surrounding rock from falling.
3. Friction bolt's plate bearing force.
These three forces make the surrounding rock more stable.
Technical characteristics
1. Material adopt high-strength alloy strip steel;
2. the installation is the simplest;
3. Don't need resin cartridges
4. The friction force between the friction bolt and the rock mass is large;
5. Bear high shear resistance and tensile strength;
6. equipped with high-strength plate, evenly force;
7. The height of the tunnel is higher than the length of the bolt.
Plate