Vendor consolidation is step one

Most maintenance teams buy from too many vendors. It starts innocently - someone finds a faster source for bearings, another person has a guy for electrical parts, and before long you have 40 suppliers for 200 SKUs.

Consolidation does not mean going to a single vendor. It means reducing to a manageable number of preferred suppliers who cover your critical categories with competitive pricing and reliable lead times. Three to five primary vendors for 80% of your MRO spend is a reasonable target.

• Map your current spend by vendor and category.
• Identify overlap - multiple vendors selling the same items.
• Negotiate volume pricing with your top three suppliers.
• Create an approved vendor list and stick to it.

Reorder points beat gut feelings

A reorder point is the inventory level that triggers a new purchase order. It accounts for lead time, consumption rate, and a safety stock buffer. Without one, you are either ordering too early (tying up cash) or too late (expediting at premium prices).

The formula is straightforward: daily usage rate multiplied by lead time in days, plus safety stock. If you use 2 bearings per day, the lead time is 5 days, and you want a 3-day buffer, your reorder point is 13 units. When inventory hits 13, order more.

Min-max inventory for the rest

For items that do not justify formal reorder point calculations - low-cost consumables, fasteners, safety supplies - a min-max system works fine. Set a minimum quantity that triggers a restock and a maximum that caps how much you hold.

Review min-max levels quarterly. Consumption patterns shift with equipment age, seasonal workload, and maintenance schedule changes. A min-max that was right last year might be wrong now.

The 80/20 rule for spare parts

Roughly 20% of your parts account for 80% of your spend and usage. These are the items that deserve formal management - reorder points, vendor agreements, quality specifications, and alternate sourcing.

The other 80% of your catalog is the long tail. Low-volume, low-cost items that are not worth the same level of attention. Manage those with simple min-max rules, blanket POs, or vendor-managed inventory. Spending equal time on every SKU is the fastest way to burn out a procurement team.

Stop the rush-order cycle

Every rush order is a failure somewhere upstream. Either the reorder point was wrong, nobody checked inventory before it ran out, or the maintenance team found a surprise failure and nobody had a spare.

Track rush orders as a metric. When the same part triggers expedited shipping repeatedly, that is not bad luck - it is a stocking problem. Fix the reorder point, add safety stock, or pre-stage the part on-site.

Measure what matters

The three numbers that tell you if MRO procurement is working: stockout rate (how often you run out of something you need), rush order percentage (how often you pay premium for speed), and spend per work order (how much parts cost per maintenance job). Everything else is noise until those three are under control.

If your stockout rate is above 5%, your stocking logic needs work. If rush orders exceed 10% of POs, your planning process is broken. Start there.