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Dynamic bolts

Dynamic Bolts are engineered for seismic, squeezing, and highly fractured ground, combining energy absorption, controlled deformation, and reliable anchorage to maintain excavation stability in demanding underground mining environments. The portfolio includes dynamic solid bolts, dynamic friction bolts, and dynamic hollow bar bolts.

Dynamic solid bolts

Dynamic solid bolts

Versamix

Bolt diameter: ⌀22 mm
Standard length: 2.4 m
Yield strength: 558 MPa – 207 kN

Dynamic solid bolts

Versabolt™

Bar diameter: ⌀20 mm / ⌀22 mm
Standard length: 1.8 - 3.5 m
Yield strength: Ø 20 mm: 151 kN - 165 kN / Ø 22 mm: 174 kN - 193 kN

Dynamic solid bolts

Posimix Dynamic Resin Bolt

Bar diameter: ⌀20 mm / ⌀24mm
Standard length: 1.5 - 3.0 m
Yield strength: ⌀20mm: 615 MPa – 185 kN / ⌀24mm: 615 MPa – 266 kN

Dynamic friction bolts

Dynamic friction bolts

MD/MDX Peg Bolt

Bar diameter: Ø20 mm
Standard length: 1.8 - 3.0 m
Yield strength: 155 - 180 kN

Dynamic friction bolts

MD/MDX Bolt

Bar diameter: Ø20 mm
Standard length: 1.8 - 4.0 m
Yield strength: 155 - 180 kN

Dynamic hollow bolts

Hollow bars

DSI Ductile Hollow Bar

Nominal outer diameter: R28: ⌀28 mm / R32: ⌀32 mm
Standard length: R28: 2.4 m / R32: 2.4 m & 3.0 m
Tensile load bearing capacity: R28: 335 kN / R32: 300 kN

Hollow bars

DSI Dynamic Hollow Bar

Nominal outer diameter: R28: ⌀28 mm / R32: ⌀32 mm
Standard length: R28: 2.4 m / R32: 2.4 & 3.0 m
Energy absorption capacity: 45 kJ

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