How do you calculate good capacity for a terminal ramp?

Multiply output per cycle by available cycles to get gross capacity, then multiply by uptime and first-pass yield. With 4 units/cycle x 480 cycles = 1,920 gross, times 90% uptime times 97% yield = 1,676 good units.

Why is good capacity lower than gross capacity?

Two losses stack: downtime removes units the line never got to build (192 units at 90% uptime), and yield removes units that failed test (about 52 units at 97% first-pass yield). Both come off the 1,920 gross figure.

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

Mature SMT and final-assembly lines for POS hardware typically run 95-99% first-pass yield. The 97% default is realistic for a stable line; a brand-new product often starts in the high 80s and climbs.

How is downtime loss different from yield loss?

Downtime loss (192 units here) is capacity you never produced because the line was stopped. Yield loss (about 52 units) is product you built but had to scrap or rework because it failed test.

Should I plan a ramp to the good capacity number?

Commit ship dates to the good capacity figure (1,676), not gross. Better still, discount it further for the first weeks of a new line when uptime and yield have not stabilized.

How do I raise good capacity without adding cycles?

Improving uptime and yield compounds. Going from 90% to 95% uptime and 97% to 98% yield on this line lifts good capacity from 1,676 to about 1,788 units with no extra shifts.

Payment Terminal & Retail Hardware calculator

Demand Ramp Planner Calculator

The Demand Ramp Planner estimates how many payment terminals and retail hardware units a line can actually ship during a launch or seasonal ramp, after uptime and first-pass yield eat into gross capacity. Operations planners and production managers use it when a retailer rollout or POS refresh program suddenly needs thousands of units on a hard date. It matters because gross theoretical capacity almost always overstates what leaves the dock — the gap between 1,920 gross and 1,676 good units is real money and missed commitments. Treat it as the reality check before you commit a ship date to a channel partner.

What this calculator does

Estimate demand ramp planner 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 demand ramp planner 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 sellable good capacity of finished terminals over a ramp window from output per cycle, available cycles, line uptime, and first-pass yield.

Formula used

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

Inputs explained

Terminals built per production cycle:
Available production cycles in the ramp window:
Line uptime during the ramp:
First-pass yield at end-of-line test:

How to use the result

Use it when planning a new-product launch, a seasonal POS surge, or any window where you must promise a firm unit count to a retail customer.
It assumes uptime and yield hold steady across the ramp; early builds usually run lower yield and more downtime, so a fresh line will underperform this estimate.

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 capacity for a terminal ramp? Multiply output per cycle by available cycles to get gross capacity, then multiply by uptime and first-pass yield. With 4 units/cycle x 480 cycles = 1,920 gross, times 90% uptime times 97% yield = 1,676 good units.
Why is good capacity lower than gross capacity? Two losses stack: downtime removes units the line never got to build (192 units at 90% uptime), and yield removes units that failed test (about 52 units at 97% first-pass yield). Both come off the 1,920 gross figure.
What is a good first-pass yield for payment terminals? Mature SMT and final-assembly lines for POS hardware typically run 95-99% first-pass yield. The 97% default is realistic for a stable line; a brand-new product often starts in the high 80s and climbs.
How is downtime loss different from yield loss? Downtime loss (192 units here) is capacity you never produced because the line was stopped. Yield loss (about 52 units) is product you built but had to scrap or rework because it failed test.
Should I plan a ramp to the good capacity number? Commit ship dates to the good capacity figure (1,676), not gross. Better still, discount it further for the first weeks of a new line when uptime and yield have not stabilized.

Last reviewed 2026-05-12.