Recoverable anchor screws
Recoverable roof- and side-anchor screws for underground support — engineered to be installed, loaded and withdrawn intact.
Overview
Recoverable anchor screws are used for temporary roof and sidewall support in underground mining and tunnelling, where the support must be removed as the working face advances. The thread form and head geometry are designed so the screw can be torqued in, take the full ground load, and then be backed out undamaged for re-use. We produce them from forged or rolled bar, thread-whirled or rolled, and heat-treated to the required support grade.
Typical applications
- Underground roof support
- Sidewall / rib support
- Tunnel temporary support
- Re-usable ground anchor systems
- Mining face-advance support
Capability data — Recoverable anchor screws
- Type
- Recoverable roof & side anchor screws
- Diameter
- Standard anchor diameters to customer spec
- Thread
- Whirled or rolled thread, designed for clean withdrawal
- Material
- Forged/rolled bar, heat-treated to support grade
- Head
- Torque-head geometry matched to installation tooling
- Use
- Install, load, recover and re-use as the face advances
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