MIRIDIA FOR MINING
When a machine stops in a mine, the failure report names a component. It rarely names the real cause: the replacement was not on the shelf, the requisition took a week to approve, or the one supplier who stocks it is a long road away.
WHAT GOES WRONG
A mid-size mining operation is a network of pits, plants, workshops and stores, sometimes hours apart. When each store keeps its own record, the part that would restart the crusher can sit in another site's store, invisible, while a duplicate purchase order goes out at emergency freight rates. ABB's survey of 3,215 plant maintenance decision-makers put the typical cost of unplanned downtime at 125,000 US dollars per hour.
Filters, drill bits, tyres and reagents follow demand that drifts with the mine plan. The reorder points that guard them were often set years ago and never recalculated. Research by Vanson Bourne for ServiceMax and GE Digital found that 70% of companies lack full awareness of when equipment is due for maintenance, upgrade or replacement, so the demand for its parts is hidden too. The stores then hold cash in parts nobody draws and run out of the parts that stop a machine.
A requisition raised at a remote site moves by email or radio to an office, waits for a signature, and is retyped into a spreadsheet before it becomes a purchase order. APQC's benchmarking puts the cost of processing a single purchase order at anywhere from about 14 to more than 54 dollars, a near five-fold gap between top and bottom performers. The processing cost is the small part. The large part is the days the machine waits while the paperwork catches up.
Issues are written in a notebook, receipts skip the system when the fitter is in a hurry, and nobody reconciles the record against the shelf until the year-end stocktake. Industry analysis published by Reliable Plant finds that in a typical MRO storeroom only 25 to 30% of inventory is required active stock, while half or more is inactive. The reorder logic then runs on numbers that do not exist, so duplicate stock and stockouts arrive together.
From The Part That Stops the Pit, with the source of each figure in the report.
HOW IT RUNS
Each spare carries a reorder point, reorder quantity and safety stock for each location. When stock falls below the threshold, Miridia raises the need automatically, and an AI Autopilot stock watcher can flag a critical line in the findings inbox.
The requisition moves through an authorisation matrix with approval thresholds and department budgets. The approver acts on one record, so nothing is retyped from an email or a radio call into a spreadsheet.
Approved demand becomes a purchase order grouped per supplier, priced from the primary supplier and dated from its lead time. Freight, duties and insurance go on cost lines, so the landed cost sits on the same document.
A goods received note records the ordered, received and damaged quantities at the central store. A transfer order then moves the part to site, tracked as in-transit from dispatch until the site receives it.
FROM LOW STOCK TO THE RIGHT SITETHE PLATFORM
HONEST FIT
FREE INDUSTRY REPORT
The figures on this page come from our Mining report: 15 pages, 5 figures and 10 cited sources. It includes a 90-day plan, and it names the conditions in which a different product is the better choice.
Mining industry report
Why unplanned downtime in mining and quarrying is so often a stores and procurement failure, and what to do about it.
QUESTIONS
No. Miridia manages the parts, not the maintenance. It has no asset register, maintenance work orders, condition monitoring or inspection schedules. It works beside a CMMS: the CMMS says what to maintain and when, and Miridia makes sure the part is on the shelf, accounted for in the ledger, and reordered from the right supplier. The API and the workflow engine can carry data between the two systems.
Yes. Miridia Planner backtests a pool of models for each SKU against your own consumption history. The pool includes Croston's method, which is built for intermittent demand. A champion model must beat naive and seasonal-naive benchmarks before it is trusted, and short or intermittent histories go to a reduced model pool instead of being overfitted. The forecast then drives reorder point recalculation.
Each pit, plant, workshop or store is a location with its own capability settings, and Remote is one of the location types. Inventory records for each location track on-hand, reserved and in-transit quantities. Transfer orders move stock between sites with a request, approval, dispatch and receipt lifecycle, and every change writes to an append-only movement ledger with a running balance and a link to its source document.
Purchase orders carry non-product cost lines for shipping, duties, insurance and other procurement costs, so the landed cost sits on the same document as the part. Each goods received note records ordered, received and damaged quantities, posts to the inventory ledger and updates the weighted average cost.
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