Hardware and Equipment

DYWIDAG Threadbar Anchors

DYWIDAG Threadbar Anchor Hardware

Domed Nut

The spherical sheathing allows for small angle compensation (3-4°)
The width across the flat of the hex portion matches the tightening socket inside the DSI jack
Protective caps are available.

Flat Plate for Rock Anchors

Installed on flat bearing surfaces
Various dimensions and grouting hole positions are available
Hot-dipped galvanising is required for permanent applications.

Coupler

Used for extending to the desired length
Double corrosion protection is required for permanent applications
Couplers are designed and produced to exceed the tensile capacity of the bars

Slip-on or Segment Spacers

Installed on the anchors to ensure a grout cover around the anchor inside the drilled hole.

Grout Tube

Grout tube is used to inject cement grout
Grout tubes are manufactured from polyethylene material.

DYWIDAG Threadbar Anchor Tensioning Equipment

Tensioning jacks are available for customer hire. Every DSI tensioning jack is calibrated with its corresponding hydraulic gauge. During bar tensioning, the operater tightens the nut by pulling on a ratchet handle linked to a socket which fits over the anchor nut when using the 600 & 1100kN jacks.