LinerSense/Mill-IQ (reduced bolts) — outcomes (vs baseline)
Re-line shutdown
203.7 hr
-38.4 hr (-15.9%)
Between re-lines
0.0 hr
-198.0 hr (-100.0%)
Total downtime per year
203.7 hr
-236.4 hr (-53.7%)
100% shutdown · 0% between
Annual saving
236.4 hr
54% of baseline
Bolt time / liner
10.50 min
remove + install
Scenario comparison charts
During re-lineBetween re-lines
Between re-lines
3D scansBolt failure impactsInterim re-tensionsRe-tension before re-startRun mill before re-tensionDuring re-line (shutdown)
Install boltsInstall linersRemove liners & cleanRemove boltsRe-line inputs — annual hours by activity
| Activity (hours) | Baseline | JEMTEC | LinerSense/Mill-IQ (no 3D scan) | LinerSense/Mill-IQ (reduced bolts) |
|---|---|---|---|---|
| During re-line (shutdown) | ||||
| Remove bolts | 52.8 | 52.8 | 52.8 | 36.0 |
| Remove liners & clean | 96.5 | 96.5 | 96.5 | 96.5 |
| Install liners | 40.0 | 40.0 | 40.0 | 40.0 |
| Install bolts | 52.8 | 52.8 | 52.8 | 31.2 |
| Subtotal, re-line only | 242.1 | 242.1 | 242.1 | 203.7 |
| Between re-lines (campaign) | ||||
| Run mill before re-tension | 48.0 | 0.0 | 0.0 | 0.0 |
| Re-tension before re-start | 30.0 | 0.0 | 0.0 | 0.0 |
| Interim re-tensions | 24.0 | 0.0 | 0.0 | 0.0 |
| Bolt failure impacts | 36.0 | 0.0 | 0.0 | 0.0 |
| 3D scans | 60.0 | 60.0 | 0.0 | 0.0 |
| Subtotal, between re-lines | 198.0 | 60.0 | 0.0 | 0.0 |
| Total downtime | 440.1 | 302.1 | 242.1 | 203.7 |
| Increased availability vs baseline | — | 138.0 | 198.0 | 236.4 |