SSAB ERB 120 and SSAB ERB 120+
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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:
SSABs Expandable rock bolts comes in a variety of dimensions and load carrying specifications, please contact your local sales person for more information.
|Profile diameter (mmin)||271.1|
|Original tube diameter (mmin)||411.6|
|Upper bushing diameter (mmin)||281.1|
|Bushing head diameter (mmin)||30/37|
Standard length 1)
|1.5 - 4.0|
1) Other lengths upon request.
|Minimum yield load
|Typical Elongation A (%),not guaranteed||Elongation A
|Typical breaking load (kN),not guaranteed||Minimum breaking load (kN)|
Tolerances according to SSAB specifcations.
Please contact your local sales person for more information regarding tolerances.
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.
|Recommended hole diameter (mmin)||32 - 391.3 - 1.5|
|Recommended inflation pressure (bar)||300|