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COMPLEX42™ TRIAL – PILINGS DRILLING – ACCESS EXCAVATIONS EPPING

PROJECT : 8 x 5m deep 600mm Cores hole in rock

SUBSTRATE : 250mpa Basalt

PLACE : 121 Yale Drive, Epping, VIC, Australia

DATE : 4 July 2023

COMPANY : Access Excavations

ENGINEERS : Russell, Joel, Kyle & Logan

DRILL RIG : HPM 100J 30 Ton Excavator

DRILL BIT : 600mm Core Drill, Betek TCT Segments

SUMMARY OF RESULTS

Average Rate of Penetration (ROP) :

WITHOUT: 18.5mm / minute

WITH COMPLEX42™: 23.8mm / minute

Torque :

WITHOUT: 30-45 KPa

WITH COMPLEX42™: 18-25 KPa

Gearbox range :

WITHOUT: 1 to 7

WITH COMPLEX42™: 7 – 10

Additional Advantages with Complex42™

  • Less Vibration of the whole machine
  • Reduced fuel consumption from reduced load
  • Significantly less wear on teeth
  • Less wear on hard facing of core drill

Parameters : Potable water bucketed into the hole as required

TRIAL PART 1 : CONTROL POTABLE WATER ONLY

3 x 600mm diameter holes, 5m depth:

  • Average rate of penetration (ROP) – 4.5hours / 5m hole.
  • Torque range – 30 to 40kn.
  • HPM drill rig running in 1st to 7th gear with significant fluctuations in RPM due to friction load on core drill.

TRIAL PART 2 : 0.8% Complex42™ ADDED TO POTABLE WATER

3 x 600mm diameter holes, 5m depth

  • Average rate of penetration (ROP) – 3 hours / 5m hole
  • Torque range – 18 – 25kn.
  • HPM drill rig smoothly running through to 10th gear (top gear) and maintaining constant RPM.

LARGE REDUCTION IN “ALL-IN’ RUNNING COSTS

Improvement in performance and reduction in load on the rig is instantaneous and very obvious. You hear a large drop in machine noise (effort), vibration and chattering, and also hear it smoothly move through all 10 gears and you see an instant large drop in torque.

  • ~20 to 30% increase in ROP (even in variable ground)
  • ~12.5 to 25% lower fuel consumption due to lower torque load.
  • ~30 to 50% increase in life of tungsten carbide teeth = less down time AND reduced tooling costs.
  • Significantly less wear on hard facings = less down time and reduced tooling costs.
  • Reduced load, more consistent RPMS, less vibration and chattering = less wear and tear on the rig, lower maintenance costs per metre of drilling and less machine down time.