SSAB ERB 120 and SSAB ERB 120+

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    General Product Description

    The ERB 120 and 120+ are mostly used for mining applications.

    The tube thickness is 2 mm.The bolts are delivered in bundles of 100 bolts per bundle. The bolts have a load capacity of 120 kN.

    The ERB 120+ 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 the 120+ better capacity to follow rock deformation with squeezing ground or high strain concentration areas. The products are available within the length range of 1.5 - 4.0 meters.

    Advantages using ERB:

    • Provides immediate and full support action
    • Accommodates 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

    ERB 120 and ERB 120+ comes in a variety of dimensions and load carrying specifications, please contact your local sales person for more information.

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      Product ERB 120/120+
      Profile diameter (mm) 27
      Original tube diameter (mm) 41
      Upper bushing diameter (mm) 28
      Bushing head diameter (mm) 30/37
      Standard length 1)
      (m)
      1.5 - 4.0
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        1) Other lengths upon request.

        Mechanical Properties

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          Product Wall Thickness
          (mm)
          Minimum yield load
          (kN)
          Typical Elongation A (%),
          not guaranteed
          Elongation A
          (min %)
          Typical breaking load (kN),
          not guaranteed
          Minimum breaking load (kN)
          ERB 120 2.0 100 15 10 130 120
          ERB 120+ 2.0 100 30 20 130 120
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            Tolerances

            Tolerances according to SSAB specifcations.

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

            Delivery Conditions

            Dry/oiled/ plastic coated. SSAB ERB bolts are delivered bundled. ERB 120 and ERB 120+ are delivered in bundles of 100 bolts per bundle as standard.

            Delivery requirements can be found in SSAB’s brochure SSAB ERB – Expandable Rock Bolt or at www.ssab.com.

            Fabrication and Other Recommendations

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              Product ERB 120/120+
              Recommended hole diameter (mm) 32 - 39
              Recommended inflation pressure (bar) 300
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