Planning / WORKSHEET 07

Production batch planner

Break a required order quantity into standard batches and combine productive run time with setup or changeover time.

Output: Batch count, last-batch quantity, run time, changeover time, total hours, and shifts required.
Processing: In this browser only
Cost: Free · no account

LIVE WORKSHEET

Build the production order

Runs locally

Inputs and results stay in this browser. Verify important outputs independently.

APPLICATION NOTES

Use the result on the floor

Plan batches, run time, changeover time, last-batch quantity, and required shifts for a production order. Keep the input boundary, unit definitions, and time period attached to any recorded result so another person can reproduce it.

Useful for

Estimate elapsed production time for an order.
Compare batch sizes and changeover burden.
Expose the partial quantity in the final batch.

MODEL BOUNDARY

Assumptions and limitations

Assumptions

Production rate is stated in good units per running hour.
Every batch incurs the entered setup/changeover time.
Net hours per shift already exclude planned non-production time.

Limitations

The plan does not schedule overlapping work, labor, material, queue time, downtime, or sequence-dependent changeovers.
Required shifts are a mathematical estimate, not a calendar schedule.

DECISION CHECK

Verify before changing the process

Confirm the plan against material availability, labor, tooling, maintenance, quality holds, due dates, and safe setup procedures before release.

REFERENCE

Frequently asked questions

Does the last partial batch get a full setup?

Yes. This conservative model applies one setup/changeover allowance to every started batch.

Is production rate gross or good output?

Use a sustainable good-unit rate. If entering a gross rate, account for expected yield separately.