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Roof Bolters, Mining

SOC 47-5043.00Job Zone 2 · Some Preparationv.26.05

Context coveredUnderground hard-rock and coal mining environments where roof bolters operate self-propelled hydraulic bolting machines, conduct atmospheric testing, manage ventilation, and maintain ground control safety across Job Zone 2 skill levels.

Sources:O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.SkillsCrosswalkSkillsCrosswalk — O*NET enrichment + adjacency index. Opens in new tab.
Emerging
Entry / Apprentice
  1. Bolt hole drilling procedure — follow step-by-step under direct supervision to place holes at specified distances from ribs in an underground mine roof.
  2. Loose rock identification — recognize visually and report hazardous material that requires pulling down before bolting operations begin.
  3. Bolting machine positioning — assist with aligning self-propelled bolting machines and inserting drill bits into chucks under a journeyman's guidance.
  4. Pre-operation safety checks — complete a supervised checklist of equipment inspections before activating any bolting machinery on shift.
  5. Methane gas testing — perform basic atmospheric tests using handheld detectors under direction to identify gas presence prior to drilling.
  6. Hydraulic bolt insertion — operate the hydraulic mechanism of a bolting machine with close oversight to force bolts into pre-drilled roof holes.
  7. Ventilation curtain hanging — assist in installing ventilation curtains and tubes along designated airways under a crew leader's instruction.
  8. Rock dusting procedure — apply rock dust to surfaces after bolting operations following prescribed coverage guidelines in an underground coal mine.
  9. Hand-tool and equipment handling — use wrenches, torque tools, and drill bits safely while following site lockout/tagout protocols.
  10. Workplace communication — listen attentively and relay clear verbal reports to supervisors regarding observed roof conditions or equipment issues.
Developing
Mid-level / Established
  1. Roof bolt hole spacing — drill bolt holes at correct rib and adjacent-bolt distances with minimal oversight, maintaining pattern accuracy across a full section.
  2. Unsupported rock removal — pull down loose or unstable roof material independently, applying judgment on what requires scaling before bolting proceeds.
  3. Bolting machine setup — position and configure self-propelled bolting machines on varied roof heights and alignments without supervisory prompting.
  4. Equipment pre-shift inspection — execute comprehensive safety checks on hydraulic systems, drill assemblies, and controls and document findings on shift reports.
  5. Gas monitoring routine — conduct scheduled methane tests and interpret readings against permissible exposure limits, adjusting work pace or halting operations as needed.
  6. Hydraulic bolt placement — consistently drive bolts to specified torque and depth using the bolting machine's hydraulic system across routine production cycles.
  7. Ventilation system maintenance — hang, reposition, and inspect curtains and tubing to maintain airflow patterns in changing mine headings.
  8. Rock dust application quality — dust freshly bolted areas to uniform coverage standards, checking adherence to mine safety regulations on a routine basis.
  9. Troubleshooting minor equipment faults — diagnose and resolve common hydraulic leaks, stuck drill bits, or sensor errors to restore production with minimal downtime.
  10. Crew coordination — coordinate task sequencing with fellow bolters and shuttle car operators to maintain safe and efficient roof support progress.
Proficient
Senior / Expert IC
  1. Complex roof bolt patterns — design and execute varied bolt hole layouts to meet engineering specifications on irregular or fractured roof conditions in challenging underground sections.
  2. High-risk scaling decisions — independently evaluate and remove hazardous loose rock in non-routine conditions, applying critical judgment to protect crew safety.
  3. Full equipment lifecycle management — set up, calibrate, operate, and perform preventive maintenance on bolting machines across the complete operational cycle without oversight.
  4. Advanced methane monitoring — interpret atmospheric data trends, coordinate with ventilation crews, and initiate corrective actions when gas readings approach action levels.
  5. Non-routine equipment repair — diagnose and repair complex hydraulic, mechanical, or electronic faults on bolting machines to minimize unplanned production stoppages.
  6. Ventilation system optimization — assess airflow adequacy across multiple mine sections and reconfigure curtains and tubing to meet changing ventilation plans.
  7. Production quality control — inspect bolt installation quality against torque specifications and ground control plans, identifying and correcting deviations across an entire heading.
  8. Time and workflow management — plan shift sequences to balance drilling, bolting, dusting, and ventilation tasks, meeting production targets while sustaining safety standards.
  9. Problem-solving under pressure — apply structured troubleshooting to simultaneous equipment, ground control, and atmospheric challenges in high-stress underground environments.
  10. Safety culture reinforcement — model and enforce compliance with roof support plans, gas detection protocols, and PPE requirements across daily operations.
Advanced
Lead / Principal / Executive
  1. Ground control program leadership — direct the development and implementation of mine-wide roof support plans, integrating engineering guidance with real-world bolting crew experience.
  2. Workforce training and mentorship — design and deliver on-the-job training programs for new roof bolters, calibrating instruction to Job Zone 2 skill development milestones.
  3. Organizational safety standards — establish pre-shift inspection protocols and gas-monitoring procedures adopted across multiple mine sections or sites.
  4. Equipment procurement and evaluation — evaluate bolting machine specifications, negotiate with vendors, and recommend capital purchases aligned with production and safety requirements.
  5. Regulatory compliance oversight — interpret MSHA roof control and ventilation regulations, lead compliance audits, and represent the operation during agency inspections.
  6. Incident investigation and prevention — lead root-cause analyses of roof fall or equipment incidents and implement corrective action plans that reduce repeat occurrences.
  7. Cross-functional coordination — align bolting crew scheduling with mine engineering, ventilation, and haulage operations to optimize overall underground production flow.
  8. Performance metrics and reporting — define key performance indicators for roof bolting productivity and safety, analyze shift data, and report trends to mine management.
  9. Technology integration — evaluate and champion adoption of industrial control software and ERP platforms to improve maintenance scheduling and production tracking for bolting operations.
  10. Strategic risk management — assess ground control risks across the mine plan horizon, advising senior leadership on sequencing decisions that protect personnel and assets.

AI-at-Work Competency Framework

Sources:Anthropic Economic IndexAnthropic Economic Index — release_2026_03_24. Opens in new tab.Jadhav & Danve, 2026Skill Automation Feasibility Index — Jadhav & Danve, 2026 (arXiv:2604.06906). Opens in new tab.WEF Skills TaxonomyWEF Skills Taxonomy 2021 — Building a Common Language for Skills at Work. Opens in new tab.

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Sources:Pathsmith™ Durable SkillsPathsmith™ Durable Skills Framework — America Succeeds + CompTIA. Opens in new tab.O*NET v30.2O*NET Resource Center — Occupational Information Network, v30.2 (Sept 2025). Opens in new tab.
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Show O*NET source anchors44 anchors · skillscrosswalk.com

O*NET enrichment · skillscrosswalk.com

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Source anchors that ground each statement

Related titles
Bolt Machine Operator · Bolt Man · Bolter · Bolting Inspector · Bolting Machine Operator · Miner · Place Change Roof Bolter · Roof Bolter · Roof Bolter Operator · Roof Bolting Coal Miner · Truss Assembler · Underground Bolting Machine Operator
RAPIDS apprenticeships
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O*NET skills
Operation and ControlCritical ThinkingMonitoringOperations MonitoringTroubleshootingEquipment MaintenanceActive ListeningSpeakingCoordinationComplex Problem SolvingRepairingQuality Control AnalysisJudgment and Decision MakingTime Management
Knowledge domains
Production and ProcessingEducation and TrainingMechanicalPublic Safety and Security
Abilities
Control PrecisionArm-Hand SteadinessExtent FlexibilityManual DexterityMultilimb CoordinationProblem SensitivityReaction TimeNear VisionDepth PerceptionInformation Ordering
Work styles
DependabilityCautiousnessAttention to DetailStress TolerancePerseveranceSelf-Control
Technology
Enterprise resource planning ERP softwareIndustrial control software
Tasks · seed anchors for statements
  1. Drill bolt holes into roofs at specified distances from ribs or adjacent bolts.
  2. Pull down loose rock that cannot be supported.
  3. Position bolting machines, and insert drill bits into chucks.
  4. Perform safety checks on equipment before operating.
  5. Perform tests to determine if methane gas is present.
  6. Force bolts into holes, using hydraulic mechanisms of self-propelled bolting machines.
  7. Perform ventilation tasks, such as hanging ventilation curtains and tubes.
  8. Dust rocks after bolting.
CIP education codes
46.000046.010146.020146.030246.040146.0402

Sources: O*NET v30.2 (CC BY 4.0), SkillsCrosswalk.com, LER.me®, Anthropic Economic Index, SAFI (Jadhav & Danve, 2026), WEF Skills Taxonomy 2021, Pathsmith™ Durable Skills Framework. © 2026 EBSCOed.