EdRockMan IV LLC
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                                    HPGR service

  • Our HPGR service leader has more than 6 years dedicated HPGR experience including:
    • 5 years with Polysius Australia and 1 year with Newmont
    • Sites including Boddington, Karara, Christmas Creek, Cadia and PT Freeport
    • 14 years experience in mining and construction
    • Totalling 26 years in mechanical industry                                                                                                                                                   
  • Proficient with all aspects of HPGR set-up including operational parameters and maintenance tasks
  • Proven experience with tuning set points for consistent operation and optimisation under various conditions including:
    • high and low speeds for relative throughputs
    • obtaining higher throughputs at lower speeds
    • operating pressures above 175Bar
    • alarm minimisation and prevention
    • minimising machine trips and associated downtime
    • skew and pressure control
    • choke chute and cheek plate set up
    • training maintenance staff and operators in key areas
    • implementing strategies to prevent unplanned outages such as edge block loss and stud breakage
    • biasing between multiple machines so wear life coincides with planned shutdowns                                                                                  
  • Experienced in component change outs and servicing
    • Roll Change outs
    • FL roll slide replacement
    • Wear package including chutes, choke chute and Cheek plates
    • Zero gap components
    • Gearbox change outs
    • Safeset coupling service
    • Seal replacements
    • Accumulators
    • Wear measurements for accurate wear life predictions
      ​


Affiliated with EdRockMan is the HPGR Service Solutions Pty Ltd which is a new company aiming to assist process plants with High Pressure Grinding Rolls to get the most out of their machine investment by achieving high availability and high efficiency during mineral processing.
The dynamics and variables of a process plant can be quite demanding on the installed equipment. Careful consideration needs to be given in order to gain the most from the installed power. A well-tuned HPGR will be able to cope with these dynamics and provide opportunities to increase efficiencies, not only in the HPGR plant, but also from the equipment upstream and downstream.
Whether you're looking for more uptime from your HPGR, reducing the load on downstream equipment, looking for maintenance improvements or need assistance with planning, supervision or the complete change out of a machine, we have a solution to meet your needs.
Through your available data, and analysing any problematic situations, we can work with your existing team to tailor set points and make adjustments to improve and optimise your current processes. We have a team of comminution experts (total system) that understand the crushing, screening and grinding mills, etc. that would be part of your process. 


Planned Maintenance
  • Machine inspections
  • Chutes and wear package
  • Studs, edge blocks, side face protection and roll body
  • Wear measurements
  • Cheek plate wear and adjustment
  • Zero gap adjustment
  • Accumulator Pressures
  • Hydraulic system service
  • Lubrication and cooling system
  • Safeset coupling service
  • Start/Stop sequence
  • Alarm minimisation
  • Reduce Machine trips/Downtime
  • Increase machine availability/utilisation
  • Increase machine efficiency
  • Operator/Maintenance staff training
  • Skew/Pressure Control
  • Biasing to meet change out targets


Machine optimisation
  • Technical support
  • Supervision
  • Replacement/Service of machine components including:
    • Cardan shaft
    • Drive motors
    • Accumulators
    • Advance cylinders
    • Push back cylinders and zero gap stops
    • Gearboxes
    • Cheek plates
    • Roll change outs and associated equipment
    • Bearing seal repair
    • Safeset Coupling​


 The best way to predict the future is to create it.