What is overwind?

Conveyance arresting in the accidental event of the winder
not stopping the conveyance timeously.

Advantages of the Technogrid® overwind impact
protection system

• Very light initial impact force
  - light catchframe (±400kg per set of Technogrid® strings)
  - progressive energy absorption properties of the
  Technogrid® (refer to force stroke diagram).
• Predictable reaction forces relating to cage and headgear design.
• Technogrids are very narrow and therefore occupy
  minimal space in the shaft steel work.
• Technogrid® can be easily retrofitted to existing mines. Each retrofit is custom designed to suit each application.

No maintenance requirements (recommend annual inspections).