RCM-II, Weibull Life Data Analysis, and ISO 14224 CMMS Engineering for West African Industry.
RAMIS Consulting runs fixed-scope reliability programs for mining, offshore oil and gas, and thermal/hydro power operators in Ghana. Standard engagement: 8 to 12 weeks, one to two critical asset classes per cycle, delivered in ReliaSoft and SAP PM or IBM Maximo.
2026 Capabilities & Methodology Deck
Inspect our 13-slide technical capability deck in the browser or download the PowerPoint file for internal review.
The Cost of Reactive Maintenance in West African Operations
In gold comminution circuits, offshore FPSO process trains, and thermal generating blocks, unplanned breakdowns carry compounding freight and production penalties. A full SAG or ball mill stoppage costs $60,000 to $120,000 per hour in deferred gold production, while CAT 785/793 haul truck downtime runs $3,500 to $6,500 per hour.
Boardroom & P&L Realities
4 Financial Drivers- Deferred Comminution & HME Production: Unplanned outages cost $60,000 to $120,000 per hour in deferred gold production during a full SAG or ball mill stoppage, and $3,500 to $6,500 per hour on CAT 785/793 haul trucks.
- Maritime Lead-Time & Air-Freight Penalties: 6-to-16-week spare parts lead times through Tema and Takoradi ports force sites into 3x to 5x emergency air-freight charters when critical bearings or gearsets fail unexpectedly.
- Premature Capital Replacement: Operating rotating and structural assets past their Weibull B10 wear-out threshold turns contained component replacements into multi-million-dollar shaft, stator, or frame write-offs.
- Statutory & Permit Exposure: Loss of primary containment, tailings pump trips, and safety-instrumented system failures trigger EPA Ghana / Minerals Commission / Petroleum Commission audit triggers and mandatory shutdown orders.
Plant-Floor Realities
3 Operational Bottlenecks- Break-In Schedule Collapse: Planners and supervisors spend more than 65% of shift hours expediting breakdown repairs instead of executing planned preventive maintenance packages.
- Temperate OEM Manuals in Tropical Duty: Vendor PM intervals assume clean ambient air and 48-hour parts availability, ignoring abrasive laterite dust on the Tarkwa/Obuasi gold belt, 50Hz grid voltage sags, and offshore Gulf of Guinea salinity.
- Uncoded CMMS Work Orders: SAP PM and IBM Maximo histories filled with free-text "repaired pump" or "changed bearing" entries block Weibull life data analysis and hide chronic failure modes.
Principal Track Record & Decision-Driven Reliability
RAMIS Consulting engagements are led directly by senior reliability and asset integrity specialists—including Charles Duah (Lead Reliability Engineer & Principal Consultant; former AngloGold Ashanti Obuasi and Newmont Ahafo Reliability Planner) and Dr. Joshua Afari, Ph.D. (Asset Integrity Specialist & Senior Consultant in Metallurgy and Offshore RBI). Every engagement applies Weibull failure physics and international standards directly to your site work-order history.
Ghana Gold Belt HME & Comminution Reliability (Obuasi, Ahafo & Tarkwa)
8+ years of Heavy Mobile Equipment (HME) fleet planning, comminution circuit FMECA, and Weibull life data analysis across Tier-1 Ghanaian gold operations, calibrating PM intervals for CAT 785/793 haul trucks, hydraulic shovels, and SAG/ball mill drives.
Gulf of Guinea FPSO & Terminal Asset Integrity
10+ years of metallurgical failure analysis, quantitative Risk-Based Inspection (API 580/581), Fitness-For-Service (API 579-1 / ASME FFS-1) assessments, and Corrosion Under Insulation (CUI) mitigation across offshore FPSO topside process trains and coastal tank farms.
CMMS Master-Data Hygiene & Tema Port Spares Modeling
Restructures SAP PM and IBM Maximo functional locations to ISO 14224, fits Crow-AMSAA (MIL-HDBK-189C) reliability growth models, and sizes critical spares min/max buffers in BlockSim around 6-to-16-week Tema and Takoradi port customs lead times.
Weibull Shape Parameter (β) Maintenance Decision Rules
Infant Mortality (β < 1): QA & installation root-cause
Hazard rate decreases with age. Intrusive teardowns reset the clock and induce fresh installation defects. Fix commutator brush seating, laser shaft alignment, and lube cleanliness at commissioning.
Useful Life (β ≈ 1): Condition monitoring (ISO 10816); fixed-interval overhaul is counterproductive
Random failure rate is memoryless. Replacing a healthy component on a calendar schedule does not lower hazard rate. Apply vibration FFT, thermography, and oil tribology to track P-F intervals.
Wear-Out (β > 1): Scheduled restoration at Weibull B10 life
Abrasive slurry erosion, fatigue cracking, and liner wear follow a rising hazard rate. Schedule hard-time replacement at the Weibull B10 life minus the 6-to-16-week Tema port reorder lead time.
Sectors & Operating Environments
Reliability engineering and asset integrity programs built for heavy industrial operators in Ghana and West Africa.
Mining & Comminution
Gold (Tarkwa, Obuasi, Ahafo, Damang, Iduapriem) and Bauxite (Awaso). SAG/ball mill circuits, primary crushers, and CAT/Komatsu HME fleets.
Inspect Sector ScopeOffshore Oil & Gas
Gulf of Guinea FPSOs (Jubilee, TEN, Sankofa) and Tema Oil Refinery (TOR). API 580/581 Risk-Based Inspection and API 579 Fitness-For-Service.
Inspect Sector ScopePower Generation & Grid
Aboadze, Kpone, and Sunon Asogli thermal plants; Akosombo and Bui hydro; GRIDCo/ECG substations and mine captive power islands.
Inspect Sector ScopeHeavy Infrastructure
Port material-handling cranes at Tema and Takoradi, quarry crushing spreads, and heavy civil earthmoving fleets.
Inspect Sector ScopeWhat We Do Not Do & How an Engagement Runs
RAMIS Consulting operates strictly as an engineering analysis and CMMS governance practice. Defining clear scope boundaries prevents conflict of interest and keeps every engagement focused on verifiable reliability deliverables.
No Hardware Reselling
We do not sell vibration sensors, thermal cameras, or condition monitoring hardware. We remain 100% vendor-neutral and work with the instrumentation already installed on your plant floor.
No Permanent Staffing
We do not supply contract labor or body-shopped site planners. We execute fixed-duration engineering studies and train your internal reliability engineers to own the models post-handover.
No Open-Ended Retainers
We do not bill undefined monthly advisory retainers. Every project is scoped at 8 to 12 weeks for one to two critical asset classes with a fixed-price statement of work.
No Hands-On Wrench Time
We do not execute physical mechanical overhauls or mill relines. We engineer the SAE JA1011 maintenance strategies and SAP PM / Maximo task lists that your site technicians execute.
Four Milestones From Raw CMMS Export to Load-Ready Task Lists
CMMS Audit & Bad-Actor Triage
Extract 12 to 36 months of SAP PM or IBM Maximo work orders, cleanse free-text failure descriptions into ISO 14224 hierarchies, and isolate the top 20% of failure modes driving 80% of downtime loss.
Weibull & Crow-AMSAA Modeling
Fit Weibull shape (β) and scale (η) parameters in ReliaSoft Weibull++ and run RBD / Monte Carlo availability simulations to quantify B10 bearing, liner, and seal life under local duty cycles.
SAE JA1011 RCM-II & Spares
Facilitate on-site FMECA decision workshops with plant maintainers, assign PdM/PM intervals, and calculate min/max critical spares reorder points around 6-to-16-week Tema port lead times.
CMMS Upload & Handover
Deliver load-ready SAP PM or Maximo maintenance plans, task lists, and ISO 14224 failure code catalogs, followed by a 3-day on-site handover workshop with your reliability planners.
Start With a 12-Month CMMS Work-Order Diagnostic
Bring a 12-month SAP PM or IBM Maximo export for one comminution circuit, HME fleet, or generating unit. We will review your failure coding quality and scope a fixed-price 8-to-12-week program in 30 minutes.
Book a 30-Minute Scoping Call