Norbar Case Study

CS-32 Quarry/Mining: Kalgoorlie WA Quarry – Technofast Case Study

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Site

Kalgoorlie WA Quarry

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Original Set-Up

Standard mantle nut supplied with machine which was tightened with large flogging spanner and removal was by oxy cutting the burn ring below the nut to release the pressure

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Issues Experienced

  • No Control of bolt load
  • Use of large hammers and flogging spanner dangerous
  • Cutting of burn ring is hazardous & requires replacement after each use
  • Physically demanding
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Installation Time

Old Method = 4-5 hours + (2-3 personnel)
New Method = 1 h 30 minutes (2 personnel)

Time Saving = 4+ hours

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Application

Metso HP4 Crusher EziTite Head Nut

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Technofast Product Used

Special EziTite® Hydraulic Head Nut

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Benefits Experienced

  • Easy installation and handling
  • Removed the need for flogging spanner
  • Burn ring still used for better seating and a extra back up removal
  • Sacrificial cover made more robust for extra life
  • Minimal physical effort required
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Feedback Recieved

“The use of the EziTite® Head Nut has made the job a lot easier labour wise, faster and also has eliminated any OH&S concerns by getting away from flogging spanners, welding and burning.”
– Maintenance Supervisor

Application Pictures

EziTite® Hydraulic Head Nut installed

Sacrificial cover installed and the unit is now ready for service.

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