Can this calculator prove a payback period?
No. It shows simple arithmetic from buyer-entered assumptions. Engineering, operations and finance must validate the scope and inputs.
ROI methodology
CNC Automation ROI Scenario Calculator
Use this simple, undiscounted ROI worksheet to test how a scoped CNC machine project might change annual labor, quality-loss and other validated operating costs. All values are entered by the buyer and calculated only in the browser; nothing is submitted or stored. Results are scenarios, not quotations, savings guarantees, financial advice or promised payback.
Scenario result
Simple, undiscounted estimate
Enter one internally reviewed scenario to calculate a result.
- Adjusted project investment
- Not calculated
- Net annual benefit
- Not calculated
- Simple payback period
- Not calculated
- Five-year net scenario
- Not calculated
- Five-year simple return
- Not calculated
This result excludes discounting, financing, tax, depreciation, inflation and residual value. It is not a quotation, guarantee or finance recommendation.
Privacy boundary: the calculator runs in this browser only. It has no buyer identity fields, network submission, analytics payload or local storage.
Visible formula
How is the simple scenario calculated?
| Output | Formula | Required review |
|---|---|---|
| Adjusted investment | Scoped project investment x (1 + buyer contingency rate). | Confirm machine, tooling, integration, logistics, site and service boundaries. |
| Net annual benefit | Labor change + quality-cost change + other validated benefit - added annual cost. | Use one measured baseline and avoid counting the same benefit twice. |
| Simple payback | Adjusted investment / positive net annual benefit. | No payback is shown when annual benefit is zero or negative. |
| Five-year simple return | ((Net annual benefit x 5) - adjusted investment) / adjusted investment x 100. | This is undiscounted and excludes tax, financing, inflation and residual value. |
Input discipline
What should be validated before using the result?
- Baseline period: use a representative production year or normalized operating period.
- Production scope: keep the current and expected states on the same part mix, volume and shift basis.
- Cost ownership: use finance-approved labor, scrap, rework, maintenance and other benefit values.
- Technical scope: align the investment with tooling, automation, acceptance, export and service requirements.
- Ramp-up risk: review training, commissioning, learning curve, downtime and implementation timing separately.
Buyer questions
Questions to resolve before using an ROI scenario
Should cycle-time improvement be treated as revenue?
Only when the buyer confirms the process is a real bottleneck and finance approves the value of usable additional output.
What happens when annual benefit is zero or negative?
The calculator does not show a payback period. The baseline, future-state costs and technical project scope should be reviewed.
Which investment value should be entered?
Use the buyer's complete evaluated project scope, including any relevant tooling, integration, logistics, site or service items.