AAOM Handbook

Appendix 3

© McAlear Management Consultants 2004

Mill Parameters Planned Maint Time

Min

Most Likely

Max Weighting

Mean

Total Time

24

0

0.5

12

40

0.8

Unplanned Maint Time Ops Setup Time

Planned Maint Time

0

1.5

24

15

2.7

Total Maint Downtime

2.1

Available Time

Unplanned Maint Time

3.3

20.7

Ops Idle Time

0

2.5

5

15

2.5

1.2

3.5

20.5

Rate Maint Capability Losses (%)

0

750

950

8

694.6

Ops Setup Time

Ops Capability Losses (%)

Total Ops Downtime

0

Opertating Time

No. Maint Stops

1.7

19.1

Ops Idle Time

20.5

1.7

No. Ops Stops

Average Stop/Start Loss (%)

Max Potential Throughput

Rate

12328

646.6543566

Grade

1.3

2.1

3.5

10

2.2

Maint Capability Losses (%)

14231

Recovery

70.0% 87.0% 92.0%

10

86%

Maint Quality Losses (%) Ops Quality Losses (%)

Total Capability Losses (%)

Practical Potential Throughput

Ops Capability Losses (%)

0.0%

12328

14231

No. Maint Stops

Actual Throughput

Total No. Stops

Stop/Start Losses

0

0

12328

No. Ops Stops

Average Stop/Start Loss (%)

Total Product (ozes)

Grade (gms/tonne)

730

2.0

Yield (gm/tonne)

1.8

Recovery (%)

90.0%

Prime Product

Maint Quality Losses (%)

730

Total Quality Losses (%)

0.0%

Ops Quality Losses (%)

0.0%

0.0%

Maint… Produ…

Ozes Gold …

Tonnes Mill… Grade

% Reco…

Hrs/D

© McAlear Management Consultants 2006

Operational Planning: Set Performance Targets

Updated: August 2018

Page 13