SSAB Virsbolt 240, SSAB Virsbolt 240+ and SSAB Virsbolt 240 light

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General Product Description

SSAB Virsbolt 240/240+/240 light are used for tunneling, construction and mining, especially when thicker material or higher strength is needed since the products have a load capacity of 53.95 kipf. The bolts are delivered in wall thicknesses between 0.091" - 0.118", and in bundles of 50 bolts.

Virsbolt 240+ is made of special steel and has gone through a precise annealing process to give the bolts excellent elongation characteristics whilst maintaining good load bearing capacity. This gives Virsbolt 240+ better capacity to follow rock deformation with squeezing ground or high strain concentration areas. Virsbolt 240+ could also be an alternative to Dynamic Rock Bolts, since the product can absorb energy better and be used in deeper levels in the mine.

Virsbolt 240 light is made of a steel with a higher strength. The load bearing capacity is the same 53.95 kipf. The weight of the product is less since the thickness is 0.091", which gives an improved sustainability performance. The products are available within the length range of 94.488 - 236.220".

Advantages using SSAB Virsbolt:

  • Provides immediate and full support action
  • Accomodates large rock movements and still maintain its high load bearing capacity
  • High deformability to accommodate ground movements in tension as well as in shear

Dimension Range

SSAB Virsbolt, which is SSABs expandable rock bolts comes in a variety of dimensions and load carrying specifications. Please contact your local sales person for more information.

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    Product Virsbolt 240/240+/240 light
    Profile diameter (inmm) 1.41736
    Original tube diameter (inmm) 2.12654
    Upper bushing diameter (inmm) 1.49638
    Bushing head diameter (inmm) 1.614 / 1.89041 / 48
    Standard length 1)
    (inmm)
    94.488 - 236.2202400 - 6000
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    Comparison

      Product
      Profile diameter (inmm)
      Virsbolt 240/240+/240 light
      1.41736
      Product
      Original tube diameter (inmm)
      Virsbolt 240/240+/240 light
      2.12654
      Product
      Upper bushing diameter (inmm)
      Virsbolt 240/240+/240 light
      1.49638
      Product
      Bushing head diameter (inmm)
      Virsbolt 240/240+/240 light
      1.614 / 1.89041 / 48
      Product
      Standard length 1)
      (inmm)
      Virsbolt 240/240+/240 light
      94.488 - 236.2202400 - 6000

      1) Other lengths upon request.

      Mechanical Properties

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        Product Wall Thickness
        (inmm)
        Minimum yield load
        (kipf)
        Typical Elongation A (%),
        not guaranteed
        Elongation A
        (min %)
        Typical breaking load (kipf),
        not guaranteed
        Minimum breaking load (kipf) Weight
        (lb/ft)
        Virsbolt 240 0.1183.0 44.96 20 15 56.2 53.95 2.688
        Virsbolt 240+ 0.1183.0 38.22 30 25 53.95 51.7 2.688
        Virsbolt 240+ 0.0912.3 49.45 20 10 56.2 53.95 2.083
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        Comparison

          Tolerances

          Tolerances according to SSAB specifcations.

          Please contact your local sales person for more information regarding tolerances.

          Delivery Conditions

          Dry/oiled/ plastic coated. SSABs expandable rock bolts are delivered bundled. Virsbolt 240/240+/240 light are delivered in bundles of 50 bolts per bundle.

          Delivery requirements can be found in SSAB’s brochure SSAB Virsbolt, expandable rock bolt for rock reinforcement or at www.ssab.com.

          Fabrication and Other Recommendations

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            Product Virsbolt 240/240+/240 light
            Recommended hole diameter (inmm) 1.693 - 2.04743 - 52
            Recommended inflation pressure (psi) 4351
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            Comparison

              Product
              Recommended hole diameter (inmm)
              Virsbolt 240/240+/240 light
              1.693 - 2.04743 - 52
              Product
              Recommended inflation pressure (psi)
              Virsbolt 240/240+/240 light
              4351