SSAB ERB 160 and SSAB ERB 160+
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The ERB 160 and 160+ are mostly used for tunneling and construction, but could also be used in the mines.
The tube thickness is 2 mm. The bolts are delivered in bundles of 50 bolts per bundle. The bolts have a loading capacity of 160 kN.
The ERB 160+ 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 160+ better capacity to follow rock deformation with squeezing ground or high strain concentration areas. The products are available within the length range of 2.4 - 6.0 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)||361.417|
|Original tube diameter (mmin)||542.126|
|Upper bushing diameter (mmin)||381.496|
|Bushing head diameter (mmin)||41 / 481.614 / 1.890|
Standard length 1)
|2.4 - 6.0|
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 160 and ERB 160+ are delivered in bundles of 50 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)||43 - 521.693 - 5.047|
|Recommended inflation pressure (bar)||240|