OMEGA-BOLT ®

Advantages and Characteristics

  • Immediate full load bearing capacity over the complete bolt length
  • Low-sensitive against vibrations caused by blasting works
  • Safe and simple installation
  • No extra building material required for installation
  • Flexibility in case of different or varying borehole diameters
  • Quality check during every single installation
DSI Omega Bolt ®

The OMEGA-BOLT ® is available in different types:

  • Type ERB 120
  • Type ERB 160
  • Type ERB 240

The main application of the OMEGA-BOLT ® is temporary rock reinforcement in Mining and Tunneling.

 

Bonding forces between the friction bolt and the rock mass are caused by form closure and friction transfer between the borehole wall and the rock bolt, which is expanded by hydraulic pressure.


Excavation works
Excavation works
Installation of Omega Bolt ®
Installation of
OMEGA-BOLT ®
Bolt Testing
Bolt Testing

Technical Specifications

UnitERB 120ERB 160ERB 240ERB 120+ERB 160+ERB 240+
Minimum breaking load, expanded profile *[kN]120160240115150220
Typical breaking load, expanded profile *[kN]---120160240

* According to EN 10002-1 where applicable


120/120+160/160+240/240+
Profile diameter27,53636
Material thickness (mm)223
Original tube diameter (mm)415454
Upper bushing diameter (mm)283838
Bushing head diameter (mm)30/3641/4841/48
Recommended borehole diameter (mm)32-3943-5243-52
Optimum borehole diameter (mm)35-3845-5145-51
Delivery lengths (m)1.0-8.01.0-8.01.0-8.0
Inflation pressure (bar)300250300