logo
FRICTION BOLT
  

JENNMAR

FRICTION-LOK STABILIZER

TECHNICAL FEATURES :
  • Friction-Lok stabilizer can be used in a variety of ground conditions for immediate ground support, but is suitable for very soft strata and permanent support.
  • Friction-Lok stabilizer is a kind of yieldable bolt. It can be used in fractured/squeezing strata conditions of dynamic stress.
  • The bolts provides immediate strata supporting trough the friction between split tube and drillhole wall.
  • Once the maximum frictional resistance is overcome , the bolt starts to slide and keeps a constant supporting load at a rate of 0.75-1.0 ton per foot anchorage (depending on the diameter and strata)
  • High strength split tube headed with welded ring
  • Dome plate
  • Easy and fast to install
  • No tension needed
  • Sensitive to drill hole size
  • Available in black or galvanized


Bolt types and physical properties :
Bolt Type Diameter (mm) Typical length (mm) Drill Hol diameter (mm) Physical properties
Typical Yield (ton) Typical tensile (ton) Elongation A5 (%)
FL33
33 As required 28-32 10 12 2.46-3.28
FL35
35 As required 31-34 10 12 2.46-3.28
FL39
39 As required 35-38 12 14 2.46-3.28
FL47 47(46) As required 42-45 16 18 3.28-4.92