Mining Supply Company

Mining Supply Company

Mining Supply Company

Mining Supply Company

Roof Bolts

Your Partner in Mining Strength and Precision

Ground Support • roof bolts

roof bolts and accessories that keep headings safe and stable

Songatech supplies resin anchored rebar, mechanical anchor bolts, friction stabilisers, and cable bolts for intersections. The aim is simple. Make excavations safe, hold rock layers together, and reduce falls of ground.

Key facts

  • Types: Resin anchored rebar, mechanical anchor bolts, friction stabilisers, cable bolts
  • Lengths: 0.9 m to 2.4 m standard, longer on request
  • Diameters: 16 mm, 18 mm, 20 mm typical
  • Capacity: 100 kN to 250 kN by type and installation
  • Accessories: Plates, domed and spherical washers, nuts, resin, grout, couplers
  • Coatings: Black steel, galvanised, or epoxy coated
  • Installation: Hand-held bolters, pneumatic rigs, mechanised machines

Overview

Correct bolt type, pattern, and pretension keep the roof stable. Resin anchored bolts give strong bond strength. Mechanical anchors suit competent rock where immediate load is needed. Friction stabilisers install fast for squeezing ground. Cable bolts bridge large spans at intersections. Songatech helps match the bolt to the rock mass and the mine support rules.

Strong bond Immediate load Fast installation

Benefits

  • Improves workplace safety and reduces falls of ground
  • Predictable behaviour when installed to specification
  • Wide choice of lengths and plates for headings and stopes
  • Options for corrosive or wet ground
  • Local stocking for quick turnaround

Resin Anchored Rebar Bolts

Deformed bar with combination or full column resin. Fast set or slow set grades. Strong bond and reliable load transfer.

Full column bond

Mechanical Anchor Bolts

Expansion shell anchors for competent rock. Immediate loading after installation. Suits short-term headings and development ends.

Immediate load

Friction Stabilisers (Tube Bolts)

Expansion tube that grips the borehole wall along the length. Quick installation and strong performance in squeezing ground. Optional corrosion protection.

Squeezing ground

Cable Bolts

Multi-strand long anchors for intersections and large spans. Resin or cement grouted. Used with straps or mesh to spread load.

Large spans

Accessories

  • Square and domed plates, spherical washers, nuts, couplers
  • Resin capsules and cementitious grouts
  • Mesh sheets and Oslo straps to cover areas between bolts

Quality assurance

  • Steel grade certificates per batch
  • Tensile and pull tests on sample bolts and plates
  • Resin shelf life and gel time checks
  • Dimensional checks on threads, plates, and hole size

Frequently asked questions

SelectionWhich bolt should be chosen
Resin rebar for strong bond and long-term support. Mechanical anchors for competent rock where speed matters. Friction stabilisers for squeezing or jointed ground. Cable bolts for wide spans or intersections.
SpacingHow far apart should bolts be installed
Follow the mine support standard. Typical spacings are 1.0 m to 1.5 m, set by site rules and ground conditions.
SupplyDo you supply plates and resin
Yes. Plates, washers, nuts, resin capsules, and grout are supplied with the bolt order.

Note. Final selection depends on rock mass rating, span, exposure time, water, and corrosion risk. Always follow the mine support standard and the manufacturer installation guide.

Selection guide

Competent rockDevelopment ends

Recommended: Mechanical anchor bolt. Typical length: 1.2 m to 1.8 m. Use a domed plate and spherical washer for immediate load.

Jointed or bedded groundGeneral headings

Recommended: Resin anchored rebar. Typical length: 1.5 m to 2.4 m. Use full column resin for bond and durability.

Squeezing groundDrives and crosscuts

Recommended: Friction stabiliser (tube bolt). Typical length: 1.5 m to 2.1 m. Strong along-hole grip. Add straps or mesh if needed.

Wide intersectionsLarge spans

Recommended: Cable bolt with strap or mesh. Typical length: 3.0 m to 6.0 m. Bridges spans and limits block falls between bolts.

Corrosive or wet conditionsAny area

Recommended: Galvanised or coated variants. Length as per duty. Use sealed resin and corrosion protection.

Packing and delivery

  • Bolts bundled and labelled by length and diameter
  • Plates palletised and wrapped
  • Resin supplied in cartons with storage instructions
  • Regional delivery across South Africa and SADC

Make headings safer with the right roof bolts

Send rock mass rating, span, preferred pattern, and corrosion risks. Songatech will specify the bolt type, plates, and resin and confirm lead time with a clear quote.

sales@songatech.co.za

Songatech (Pty) Ltd 

Headquartered in Alrode, Alberton South, and active across all major mining provinces — including the Northern Cape, Limpopo, North West, Mpumalanga, and Gauteng — Songatech has also extended its support into Botswana, Zambia, Lesotho, and the DRC, building a regional footprint that reflects both scalability and reliability.

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