Mining Supply Company

Mining Supply Company

Mining Supply Company

Mining Supply Company

Oslo Straps

Your Partner in Mining Strength and Precision

Ground Support • Oslo strap

Oslo strap that spreads load and keeps roofs intact

Songatech supplies Oslo straps that work with roof bolts to spread load and hold the rock surface between bolt heads. The strap creates a continuous support line across the roof, reducing slab and block falls in headings, travelling ways, and intersections.

Key facts

  • Material: High tensile steel strap
  • Widths: 100 mm to 150 mm
  • Thickness: 3 mm to 6 mm
  • Lengths: 1.2 m to 3.6 m standard, longer on request
  • Hole pattern: Slotted and round holes to suit bolt spacings from 1.0 m to 1.8 m
  • Finish: Black steel or galvanised for corrosion protection
  • Use with: Roof bolts, cable bolts, mesh, and washers

Overview

Bolts clamp the roof at points. The strap connects these points and shares the load. This reduces small falls between bolts, improves coverage over joints, and makes intersections safer. Correct strap width, thickness, and hole pattern keep installation quick and secure.

Load sharing Fast installation Corrosion control

Benefits

  • Spreads load between bolts to cover weak seams
  • Reduces loose slabs and small rock falls
  • Simple, quick installation with standard hardware
  • Works with mesh or on its own, depending on the standard
  • Options for corrosion protection in wet headings

Flat Oslo strap

Flat profile for general use. Slotted holes match common bolt spacings and fit square or domed plates.

General headings

Profiled or curved strap

Stiffer profile for longer spans and uneven surfaces. Suits intersections and large panels where extra stiffness helps.

Intersections

Heavy duty strap

Increased thickness for high load areas. Works with cable bolts or dense bolt patterns to keep panels stable.

High load zones

Quality assurance

  • Tensile and bend tests on strap material
  • Hole size and spacing verification
  • Coating thickness checks for galvanised straps
  • Traceability labels per bundle

Frequently asked questions

MeshDo I still need mesh if I use straps
Follow the mine standard. Straps often work with mesh. In some headings straps can reduce the amount of mesh needed. The decision depends on ground conditions and rules on site.
LengthWhat strap length should be chosen
Match to bolt spacing and the area to be covered. Common lengths are 1.5 m to 3.0 m for headings and intersections.
CompatibilityAre straps compatible with plates
Yes. Hole patterns suit common plate sizes and washers for clean installation.

Note. Final selection depends on bolt pattern, ground conditions, water, and corrosion risk. Always follow the mine support standard and the installation guide.

Selection guide

General headingsJointed roof, small slabs

Recommended: Flat Oslo strap. Width and thickness: 100 to 120 mm, 3 to 4 mm. Use with resin rebar bolts at standard spacing.

IntersectionsWide span, block risk

Recommended: Profiled strap. Width and thickness: 120 to 150 mm, 4 to 6 mm. Pair with cable bolts or a dense bolt pattern.

Travelling waysTraffic vibration

Recommended: Flat or profiled strap. Width and thickness: 120 to 150 mm, 4 to 6 mm. Add galvanised finish in wet areas.

High load zonesImpact and squeezing

Recommended: Heavy duty strap. Width and thickness: 150 mm, 5 to 6 mm. Use with larger plates and spherical washers for alignment.

Corrosive or wet areasWater, acidity

Recommended: Galvanised strap. Size as per duty. Improves life. Seal around holes where possible.

Packing and delivery

  • Bundles strapped and edge protected
  • Standard lengths ex stock where possible
  • Custom hole patterns cut to drawing
  • Regional delivery across South Africa and SADC

Cover the gaps and make headings safer

Send bolt spacing, plate type, length range, and finish preference. Songatech will confirm the Oslo strap specification, lead time, and 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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