Managing Inventory

Managing Inventory

Inventory Management is the process of planning, controlling, and optimizing materials, spares, consumables, and tools to ensure availability without excess cost—especially critical for maintenance operations.

🎯 Objectives of Inventory Management

  • Avoid stock-outs and production stoppage
  • Reduce overstocking & carrying cost
  • Improve visibility & traceability
  • Support preventive & breakdown maintenance
  • Enable data-driven purchasing decisions

Key Elements of Inventory Management

1️⃣ Inventory Classification

  • Spares – Bearings, motors, sensors
  • Consumables – Lubricants, filters, gloves
  • Critical / Non-critical items
  • ABC Analysis (A = high value, C = low value)

2️⃣ Stock Level Control

  • Minimum, Maximum & Reorder Level (ROL)
  • Safety stock definition
  • Lead-time-based planning
  • Overstock & stock-out alerts

3️⃣ Issue, Receipt & Return

  • GRN (Goods Receipt Note) entry
  • Issue against maintenance work orders
  • Return unused spares to store
  • Scrap / obsolete item handling

4️⃣ Barcode / QR Code Tracking

  • Fast issue & receipt
  • Accurate stock updates
  • Easy physical verification
  • Reduced manual errors

5️⃣ Vendor & Purchase Management

  • Approved supplier list
  • Lead time tracking
  • Purchase Requisition (PR) & PO linkage
  • Vendor performance evaluation

6️⃣ Inventory Audit & Control

  • Cycle counting
  • Physical vs system stock reconciliation
  • Obsolete & slow-moving analysis

Typical Inventory Workflow

  1. Create item master
  2. Define Min / Max / ROL
  3. Receive material (GRN)
  4. Issue against WO / department
  5. Auto stock update
  6. Reorder alert & procurement

📊 Key Inventory KPIs

  • Inventory turnover ratio
  • Stock-out frequency
  • Carrying cost
  • Slow / non-moving items
  • Inventory valuation

Benefits

  • Reduced downtime
  • Lower inventory cost
  • Better maintenance planning
  • Improved audit compliance

 

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