About RAMIS Consulting
An engineering practice built around Weibull failure physics, ISO 14224 data hygiene, and the logistical realities of operating heavy industrial assets in West Africa.
Why West African Maintenance Programs Stall and How We Fix Them
Across West African gold mines, offshore oil and gas facilities, and thermal power stations, the same three structural failure modes repeatedly stall industrial maintenance organizations:
1. Unstandardized SAP PM and IBM Maximo failure codes. Most operations in Ghana have paid for tier-one CMMS licenses, but technicians close work orders with free-text notes like “fixed leak” or “replaced bearing.” Without an ISO 14224 failure mode and mechanism hierarchy, reliability engineers cannot separate infant mortality ($\beta < 1$) from wear-out ($\beta > 1$).
2. OEM maintenance manuals written for temperate supply chains. Equipment vendors write preventive maintenance schedules assuming clean ambient air, stable grid power, and 48-hour spare-parts delivery. Those intervals break down when assets operate in abrasive laterite dust on the Tarkwa and Obuasi gold belt or high-saline marine humidity in the Gulf of Guinea.
3. Six-to-sixteen-week Tema and Takoradi port lead times. When a critical SAG mill pinion bearing, crusher eccentric bushing, or gas compressor dry-gas seal takes 6 to 16 weeks to clear customs at Tema port, calendar guesswork forces sites into two bad outcomes: either catastrophic stock-outs costing $60,000 to $120,000 per hour in deferred production, or bloated warehouse working capital tied up in slow-moving parts.
RAMIS Consulting (a subsidiary of JE3 GBADAM LLC) was established to solve those three problems with quantitative engineering. We do not sell condition monitoring hardware, and we do not pitch generic management slide decks. We clean your CMMS history, fit Weibull and Crow-AMSAA models to your failure modes, and hand over load-ready PM task lists and spares reorder parameters that your site team can run independently.
Four Non-Negotiable Practice Rules
We never shorten or extend a preventive maintenance interval without fitting a Weibull distribution ($\beta, \eta$) or documenting a P-F interval per SAE JA1011.
Every critical spare min/max calculation incorporates actual 6-to-16-week maritime transit and customs clearance times through Tema and Takoradi ports.
Engagements conclude with native ReliaSoft files and SAP PM or IBM Maximo upload sheets, not a static PDF report left on a shelf.
RAMIS takes zero referral fees or reseller margins from sensor, lubrication, or software vendors. Recommendations are strictly engineering-driven.
Leadership Team
Every RAMIS engagement is scoped and executed directly by senior reliability and asset integrity engineers with operating experience across Ghana and the Gulf of Guinea.
Charles Duah
Lead Reliability Engineer & Principal Consultant
Charles Duah has 8+ years of mining maintenance planning and reliability engineering experience on the Ghana gold belt. He previously served as Reliability Planner at AngloGold Ashanti's Obuasi Mine and Newmont's Ahafo Mine, leading Heavy Mobile Equipment (HME) fleet availability tracking, SAP PM work-order taxonomy audits per ISO 14224, and rotables spares forecasting around Tema port transit lead times.
Dr. Joshua Afari
Asset Integrity Specialist & Senior Consultant
Dr. Joshua Afari is a metallurgy and structural integrity specialist with 10+ years of offshore and midstream experience across the Gulf of Guinea. He holds a Ph.D. in Metallurgy and leads quantitative Risk-Based Inspection (RBI) programs per API 580/581, Fitness-For-Service (FFS) assessments per API 579-1 / ASME FFS-1, and Corrosion Under Insulation (CUI) mitigation on FPSO topside process trains and tank farms.
Methodology Standards & Engineering Tooling Stack
Every failure model, inspection plan, and CMMS upload package delivered by RAMIS Consulting is anchored to auditable international engineering standards.
| Standard / Code | Engineering Discipline | West African Field Application |
|---|---|---|
| ISO 55001 | Asset Management System Governance | Aligns Strategic Asset Management Plans (SAMP), capital replacement budgets, and plant-floor PM execution for multi-site mining and energy operators. |
| ISO 14224 | Equipment Taxonomy & Failure Data Collection | Restructures SAP PM and IBM Maximo asset hierarchies and enforces 3-tier failure mode, mechanism, and cause coding on closed work orders. |
| SAE JA1011 / JA1012 | Reliability-Centered Maintenance (RCM-II) | Governs FMECA criticality ranking and evident vs. hidden failure decision logic for comminution circuits, HME fleets, and gas compression trains. |
| MIL-HDBK-189C | Reliability Growth Management (Crow-AMSAA) | Fits Non-Homogeneous Poisson Process (NHPP) Power Law models to multi-unit fleets to verify whether engineering modifications actually increase MTBF. |
| MIL-HDBK-472 | Maintainability Prediction & MTTR Reduction | Decomposes wrench-time, isolation, rigging, and spares kitting delays to shorten Mean Time To Repair (MTTR) during planned mill and turbine shutdowns. |
| API 580 / 581 | Quantitative Risk-Based Inspection (RBI) | Calculates Probability of Failure (PoF) and Consequence of Failure (CoF) for Gulf of Guinea FPSO topside pressure vessels, risers, and tank farms. |
| API 579-1 / ASME FFS-1 | Fitness-For-Service (FFS) Assessment | Evaluates remaining structural life of pressure equipment and piping subject to Corrosion Under Insulation (CUI), pitting, or weld-toe fatigue cracking. |
| IEEE 493 / IEEE 1366 | Electric Power Generation & Grid Reliability | Quantifies substation and captive power availability (IEEE 493 Gold Book) and models feeder interruption indices (SAIDI, SAIFI, CAIDI per IEEE 1366). |
| ISO 10816 / 20816 | Mechanical Vibration Condition Monitoring | Establishes RMS velocity and acceleration alarm/trip thresholds for SAG/ball mill drives, primary crushers, boiler feed pumps, and gas turbines. |
Software & Data Engineering Stack
ReliaSoft Weibull++ / RGA / BlockSim
Fits 2- and 3-parameter Weibull distributions to right-censored suspension data, calculates B10 component life, and runs Monte Carlo Reliability Block Diagrams (RBD) for series-parallel process plants.
SAP PM & IBM Maximo
Audits functional location trees, builds standardized object-part / damage / cause catalogs, and generates load-ready preventive maintenance plans and bill-of-materials (BOM) min/max levels.
Python & Power BI
Executes automated text classification on legacy free-text CMMS work orders, computes rolling Crow-AMSAA growth curves, and publishes bad-actor Pareto dashboards for site engineering teams.