Product types: Groutable Roof Bolts

Unibar™

Unibar™ - Mechanical Anchor Bolt

The cold form thread pattern on the Unibar™ gives closer tolerance between thread and nut (no 'rattle fit') and greater tensile strength. These features combined, provide improved load retention capability, compared to conventional hot-rolled fully threaded bar.

Product types:
Thread bar 500

Thread bar 500

No reduction in load capabilities as threads exceed the nominal bar diameter. Robust thread design accepts harsh conditions without affecting threadability. Increased bond strength achieved owing to large surface area of ribs. Continuous thread enables retensioning in the event of ‘scaling’, as well as cutting of the bar at any point.

Product types:
Durabar

Durabar® - Yielding Roof Bolt

Durabar® is an engineered yieldable tendon capable of providing effective support in areas with swelling ground and areas prone to seismic activity. A risk assessment done by SRK Consulting indicates that financial and safety risks should decrease one hundred fold when using yieldable Durabar® instead of rebar as support under similar circumstances.

Product types:
Shepherds Crook

Shepherds Crook

Shepherds Crooks/grout rods are manufactured to client specification in a variety of arm lengths and from steels to meet the specified requirements. They are manufactured in smooth or deformed steel conforming to the requirements of SABS 920 and in accordance with our ISO 9001 quality listing.

 

Product types:
Cone Bolts

Cone Bolts - Yielding Roof Bolt

The cone bolt is a yielding tendon capable of providing effective support in areas prone to seismic events and high stress changes. Damage to tunnels normally resulting from, or associated with, rockbursts and large quasi-static rock deformations are consequently reduced.

Product types:
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