How do you calculate rework cost on a payment terminal line?

Multiply terminals built by the rework cost per unit and by the first-pass failure rate, then add fixed station setup. For 10,000 terminals at $22/unit rework, a 5% failure rate, and $2,000 setup, that is 10,000 x $22 x 0.05 + $2,000 = $13,000 total.

What is the rework cost per unit in this example?

$1.30 per terminal built. That is the $13,000 total rework cost spread across all 10,000 units produced — not per failed unit. Per failed unit, rework runs the full $22 plus a share of the $2,000 setup.

What is a good first-pass failure rate for POS and payment hardware?

Mature SMT and final-test lines target first-pass yield above 97-98%, so a failure rate of 2-3% or lower. The 5% used here is realistic for a ramping build; each point you remove is worth about $2,200 of variable rework in this scenario.

Why separate variable and fixed rework cost?

The variable portion ($11,000 here) scales with volume and failure rate, so it responds to yield improvements. The fixed adder ($2,000 station setup) is paid regardless of how many units fail, so at low failure rates it can dominate the per-unit number.

Does this include the cost of scrapped terminals?

No. This calculator assumes failed units are reworked and recovered. Boards or enclosures that are scrapped outright — common when a tamper mesh is damaged — should be costed separately as scrap, since their loss is the full material and labor value, not a rework touch.

How does rework cost affect a contract manufacturing quote?

At $1.30 per terminal built, rework alone can consume a meaningful slice of assembly margin. Quoting teams fold this into the standard cost so the price reflects realistic yield rather than an ideal first-pass line.

Payment Terminal & Retail Hardware calculator

Rework Cost Calculator

Rework cost is the total money a payment terminal line spends fixing units that fail first-pass functional or PCI security test — the labor, replacement parts, and station overhead needed to bring failed EMV readers, PIN pads, and Android POS units back to spec. Quality engineers and NPI managers on retail hardware programs track it because rework quietly erodes contract-manufacturing margins that are already thin. On a payment device, rework is riskier than most: reopening a tamper-sealed enclosure can invalidate PCI PTS certification, so every reworked unit may need re-inspection and re-sealing. Knowing the cost per terminal built tells you exactly what first-pass yield is worth chasing.

What this calculator does

Estimates in-line rework cost for a payment terminal build from unit count, per-unit rework cost, and first-pass failure rate.
Use it to weigh rework spend against process improvements that would raise first-pass yield on the assembly line.
It computes total rework spend as volume times per-unit rework cost times first-pass failure rate, plus fixed station setup, then divides by terminals built to get rework cost per unit produced.

Formula used

Total rework cost = terminals built x rework cost per unit x first-pass failure rate% + station setup
Rework cost per terminal built = total rework cost / terminals built

Inputs explained

Terminals built:
Rework labor and parts per unit:
First-pass failure rate:
Rework station setup:

How to use the result

Use it when quoting a new terminal build, setting a first-pass-yield target, or justifying a test-coverage or process improvement against the rework it would eliminate.
It treats the failure rate as a single blended number and assumes every failed unit is reworkable at the same cost — it does not model scrapped units, multi-pass rework, or PCI re-certification fees triggered by breaking a tamper seal.

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 rework cost on a payment terminal line? Multiply terminals built by the rework cost per unit and by the first-pass failure rate, then add fixed station setup. For 10,000 terminals at $22/unit rework, a 5% failure rate, and $2,000 setup, that is 10,000 x $22 x 0.05 + $2,000 = $13,000 total.
What is the rework cost per unit in this example? $1.30 per terminal built. That is the $13,000 total rework cost spread across all 10,000 units produced — not per failed unit. Per failed unit, rework runs the full $22 plus a share of the $2,000 setup.
What is a good first-pass failure rate for POS and payment hardware? Mature SMT and final-test lines target first-pass yield above 97-98%, so a failure rate of 2-3% or lower. The 5% used here is realistic for a ramping build; each point you remove is worth about $2,200 of variable rework in this scenario.
Why separate variable and fixed rework cost? The variable portion ($11,000 here) scales with volume and failure rate, so it responds to yield improvements. The fixed adder ($2,000 station setup) is paid regardless of how many units fail, so at low failure rates it can dominate the per-unit number.
Does this include the cost of scrapped terminals? No. This calculator assumes failed units are reworked and recovered. Boards or enclosures that are scrapped outright — common when a tamper mesh is damaged — should be costed separately as scrap, since their loss is the full material and labor value, not a rework touch.

Last reviewed 2026-05-12.