DYWIDAG-SYSTEMS INTERNATIONAL
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DYWIDAG Rock Bolts

DYWIDAG Rock Bolts

SN Anchors / Fully Grouted Rock Bolt

  • Steel tendon is grouted along its entire length
  • Galvanized version available
  • Excellent force / borehole ratio

Fields of Application

  • Ground support
  • Rock stabilization
  • Anchorages in rock
  • Rock and soil

SN Anchors / Fully Grouted Rock Bolt

SN Anchors / Fully Grouted Rock Bolt

1 - Anchor Nut

4 - GEWI® or GEWI® Plus Bar

2 - Bearing Plate

5 - Cement Stone Coverage

3 - Face

6 - Spacer

Expansion Shell Anchors / Rock Bolts with Expansion Shell

  • Extremely fast and easy installation
  • Immediate load bearing capacity in the borehole
  • Galvanized version available
  • Retensionable
  • Various angle compensation designs available
  • Posterior grouting is possible – increased load bearing capacity and durability

Fields of Application

  • Face bolts
  • Ground support
  • Roof support
  • Medium hard to hard rock
  • Potash and salt

Expansion Shell Anchors / Rock Bolts with Expansion Shell

Expansion Shell Anchor / Rock Bolt with Expansion Shell

1 - Anchor Nut

3 - Tendon

2 - Bearing Plate

4 - Expansion Shell

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