DYWIDAG Expandable Rock Bolt
Instant stabilization without grouting.
- Ground Support
DYWIDAG Expandable Rock Bolt also known as DYWIDAG Friction Bolt is manufactured from high strength slotted steel featuring a welded retaining ring, the DYWIDAG friction bolt offers fast installation and immediate load bearing capacity. Our design reduces bending on installation, offers improved confinement resistance and higher yield capacity for consistent anchoring in challenging rock conditions.
- Immediate frictional support, enabling faster and safer excavations
- Suitable for mechanised or handheld installations.
- Multiple diameter and length options to suit your requirements.
- Available in bright and galvanised steel options.
- Grout-free installation, saving construction time and cost
- Easily adjusts to deformities if there is any ground movement
Main standards steel nuances
Asia: Nominal ultimate loads 120 kN, 160 kN, 200 kN and 240 kN
Accessories
- Supply of DYWIDAG Water Pumps
- Angle compensation at anchor head by using a domed plate
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