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mining Friction Stabilizer bolt
mining Friction Stabilizer bolt
Supplier Info
[China Supplier]
Contact Person : Mr. Wang Jim
Tel : 86--311-87306157
Fax : 86-311-87306158
Product Detail
1. Rollformed from high strength steel strip 2. Different diameter of friction bolt available 3. Different surface treatment

Brief Introduction:

1. Friction Bolt is a kind of slotted steel tube with one end tappered,

     the other end has a welded ring flange to hold the bearing plates.

2. Friction Bolt is inserted into a hole slightly smaller in diameter

     than the tube, using a simple driver tool fitted to the drill.

3. As bolt enters, its diameter is compressed and the slot partially

    close. This exerts radial forces along the length of contact with

    the rock, providing the friction which holds the rock together.

4. The driving force of the drill actively loads the bearing plate

     against the rock.

Type and Features

Technical Data / TypesTRMSS33TRMSS39TRMSS46
Recommended Borehole30 - 32mm35 - 38mm41 - 45mm
Outside tube Diameter33mm39mm46mm

Breaking Capacity  Minimum

                               Typical 

80 KN105 KN130 KN
100 KN130 KN180 KN
Typical Elongation20-32%20-32%20-32%
Tube Thickness2.3-2.5mm2.3-2.5mm3.0-3.2mm
MaterialQ235/Q345Q235/Q345Q235/Q345
Surface TreatmentBlack/Paint/HDGBlack/Paint/HDGBlack/Paint/HDG
Length0.6 - 2.1m0.9 - 3.0m0.9 - 4.0m
InstallationHand install/MechanizedHand install/MechanizedMechanized
Dome Plates125x125x4mm

125x125x4mm /

150x150x4mm

150x150x4mm
Combi Plate300x280300x280300x280
Mesh100x100 Dia5.6 BLK/HDG100x100 Dia5.6 BLK/HDG100x100 Dia5.6 BLK/HDG

Our Friction Bolt:

Our Produciton Facility: 

Our Packing:

Our Testing:

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