How do you calculate good production capacity for a terminal line?

Multiply output per cycle by available cycles for gross capacity, then multiply by uptime and by first-pass yield. Here 4 x 480 = 1,920 gross, then x 0.90 x 0.97 = 1,676 good units.

What is the difference between gross and good capacity?

Gross capacity is what the line would produce if it never stopped and every unit passed test — 1,920 in this example. Good capacity is what actually ships after downtime and test failures, which is 1,676 here, a 244-unit gap.

How much capacity does downtime cost in this example?

With 90% uptime, the line loses 10% of gross output to stoppages: 1,920 x 10% = 192 units of downtime loss before yield is even considered.

How much do first-pass test failures cost here?

After downtime, the remaining 1,728 units run at 97% first-pass yield, losing about 51.8 units to test failures at final test — the units that would need rework or scrap before they can ship.

What is a good first-pass yield for payment terminals?

Mature terminal assembly and test lines target 95-99% first-pass yield; the 97% here is healthy. Secure-element provisioning, card-reader calibration, and connectivity tests are the usual first-pass killers to watch.

Why not just quote gross capacity to the customer?

Because you cannot ship gross. Committing 1,920 when the line truly delivers 1,676 means a 244-unit shortfall against the order. Planning to good capacity is what keeps ship dates honest.

Payment Terminal & Retail Hardware calculator

Capacity Gap Calculator

Capacity Gap shows the difference between the terminals a line could theoretically build and the good, shippable units it actually produces once uptime and first-pass yield are applied. You enter output per cycle, the number of cycles available, expected uptime, and first-pass yield, and it returns realistic good capacity along with the downtime and yield losses eating into it. Production planners, industrial engineers, and operations managers at payment-hardware plants use it to commit realistic delivery dates and size the line against a rollout order. Quoting gross capacity to a customer and then losing units to secure-element test failures and line stoppages is how plants miss ship dates — this calculator closes that gap up front.

What this calculator does

Estimate capacity gap for payment terminal and retail hardware using production-ready inputs so teams can confirm whether capacity can cover demand before committing the schedule.
Use it when capacity gap in payment terminal and retail hardware is being asked to take on more work and you need to know if there is room.
It computes good, shippable terminal capacity by derating gross output for expected uptime and first-pass yield, and breaks out the downtime and yield losses.

Formula used

Gross capacity gap capacity = capacity gap output per cycle × available capacity gap cycles
Good capacity gap capacity = gross capacity × expected capacity gap uptime × expected capacity gap first-pass yield

Inputs explained

Terminals assembled per production cycle:
Available production cycles in the window:
Expected line uptime:
Expected first-pass yield at final test:

How to use the result

Use it when committing a delivery date, sizing a line against a rollout order, or setting a realistic production plan.
It uses steady-state uptime and yield; a new SKU still ramping, or one with rework that recovers failed units, will not match these single-pass numbers.

Current U.S. benchmarks

Global copper trades at $13,484 per tonne (IMF via FRED, May 2026), up 41.5% in a year, and U.S. industrial electricity averages 8.66 cents per kWh. Both feed electrified-hardware unit economics.
Steel mill PPI stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. New factory orders are up 2.3% year over year (Census).

Common questions

How do you calculate good production capacity for a terminal line? Multiply output per cycle by available cycles for gross capacity, then multiply by uptime and by first-pass yield. Here 4 x 480 = 1,920 gross, then x 0.90 x 0.97 = 1,676 good units.
What is the difference between gross and good capacity? Gross capacity is what the line would produce if it never stopped and every unit passed test — 1,920 in this example. Good capacity is what actually ships after downtime and test failures, which is 1,676 here, a 244-unit gap.
How much capacity does downtime cost in this example? With 90% uptime, the line loses 10% of gross output to stoppages: 1,920 x 10% = 192 units of downtime loss before yield is even considered.
How much do first-pass test failures cost here? After downtime, the remaining 1,728 units run at 97% first-pass yield, losing about 51.8 units to test failures at final test — the units that would need rework or scrap before they can ship.
What is a good first-pass yield for payment terminals? Mature terminal assembly and test lines target 95-99% first-pass yield; the 97% here is healthy. Secure-element provisioning, card-reader calibration, and connectivity tests are the usual first-pass killers to watch.

Last reviewed 2026-05-12.