Justifying capital investment in AI visual inspection requires more than a vendor case study. Quality managers and plant heads need a defensible ROI model they can present to finance and operations leadership. This guide provides a structured framework — with real numbers from Indian manufacturing environments.
The Four Cost Buckets That Drive ROI
1. Defect Escape Costs
The most significant driver. Calculate: (monthly defective units shipped) × (average cost per returned unit including logistics, rework, and customer penalty). For automotive suppliers this typically ranges ₹800–₹3,500 per returned part. For FMCG, recall costs per incident average ₹12–₹25 lakhs.
2. Internal Rework Costs
Defects caught internally are cheaper than escapes but still expensive. Calculate: (monthly defects caught internally) × (average rework labour + material cost). Rework rates of 2–5% are common in Indian manufacturing before AI inspection.
3. Quality Inspection Labour
Manual inspection headcount is a direct substitution opportunity. DeepVision typically replaces 50–70% of manual inspection headcount within 6 months of deployment.
4. Scrap and Yield Loss
Defects detected late, after significant value has been added, become scrap. AI inspection catches defects earlier, before further value is added downstream.
Sample ROI Calculation — Automotive Manufacturer (5,000 units/day)
| Cost Category | Monthly Baseline | After AI | Saving |
|---|---|---|---|
| Defect escape costs | ₹8.4L | ₹1.2L | ₹7.2L |
| Internal rework | ₹4.2L | ₹1.4L | ₹2.8L |
| Inspection labour (6 FTEs) | ₹3.6L | ₹1.2L | ₹2.4L |
| Scrap reduction | ₹1.8L | ₹0.5L | ₹1.3L |
| Total | ₹18.0L/mo | ₹4.3L/mo | ₹13.7L/mo |
At a typical DeepVision deployment cost of ₹35–55 lakhs for a 3-station installation, payback is 3–4 months with a 3-year ROI exceeding 650%.
Intangible ROI Components
The model above excludes harder-to-quantify benefits: reduced IATF 16949 and ISO 15378 audit risk, faster new product introduction (AI retraining takes hours vs weeks for rule-based systems), improved OEM supplier ratings, and the ability to offer zero-defect SLAs as a competitive differentiator.
Getting Your Numbers
The inputs you need: current defect escape rate (ppm), average escape cost, internal rework rate, manual inspector count, and monthly scrap value. Contact Indus Vision for a free ROI analysis tailored to your production data.