Inst. of Mfg.

Automation ROI

Model payback periods for robotic cells vs. manual labor.

Payback Period

The Math

A basic ROI calculation looks at the total capital expenditure (CapEx) against the net operating savings per year.

Labor Savings = (Hourly Rate × Hours Saved/Day) × Working Days

Net Savings = Labor Savings - Annual Maintenance

Payback (Years) = Total CapEx / Net Savings

Example Calculation

Assume a robotic cell costs $150,000. It replaces two shifts of labor (16 hours total/day). The burdened operator rate is $25/hr. The plant runs 250 days a year.

Annual Labor Savings = ($25 × 16) × 250 = $100,000.

Subtracting $5,000 for annual maintenance leaves $95,000 in net savings.

$150,000 / $95,000 = 1.58 Years payback period.