How do you calculate ultrasonic weld yield?

Divide masks with sound welds by total masks welded and multiply by 100. With 8 good out of 250, the weld yield is 3.2%, a small good count against the full inspected population.

What does the weld yield gap to target tell me?

It is weld yield minus target in points. A 3.2% rate against a 95% target is 91.8 points short, which signals a serious weld fault or reversed inputs, not normal variation.

What is a good ultrasonic weld yield on a mask line?

A well-tuned ear-loop weld station usually runs 96-99% first-pass yield. Results in the low single digits, like this 3.2%, point to a cold-weld condition, worn anvil, or wrong parameters rather than ordinary scatter.

What causes ultrasonic weld yield to drop?

Low amplitude or pressure gives cold, weak welds; too much gives marked-through or torn media. Anvil wear, horn detuning, and contaminated media all pull yield down, so a sudden drop is a cue to check the stack.

Ultrasonic weld yield vs overall mask yield?

Weld yield covers only the bonding step; overall mask yield also folds in filter media, nose-wire and strap defects. Overall yield is therefore usually lower once the other losses stack on the weld station's result.

Should marginal welds count as pass?

Only if they meet your pull-test acceptance criterion. If you rely on visual pass but skip pull testing, weak welds slip through as good and inflate yield above real bond quality.

PPE & Infection Control Products calculator

Ultrasonic Weld Yield Calculator

Ultrasonic weld yield is the share of masks whose ear-loop and edge welds hold to spec out of everything the horns processed. Quality engineers and ultrasonic process technicians on mask lines track it because weld defects, cold bonds, tears at the ear-loop, marked-through media, are the most common assembly reject and the hardest to catch downstream. Weld yield reacts fast to amplitude, pressure, weld time and anvil wear, so it doubles as a live health check on the ultrasonic stack. Holding weld yield against a target is what keeps ear-loops from failing in a customer's hands.

What this calculator does

Estimate ultrasonic weld yield for ppe and infection control products using production-ready inputs so teams can track KPI performance and decide whether corrective action is needed.
Use it when ultrasonic weld yield in ppe and infection control products needs a clean rate and gap-to-target you can put on a tier board.
Computes the percentage of masks with sound ultrasonic welds and the gap in points between that rate and your target.

Formula used

Ultrasonic weld yield rate = ultrasonic weld yield count ÷ total ultrasonic weld yield population × 100
Ultrasonic weld yield gap to target = ultrasonic weld yield rate - target ultrasonic weld yield rate

Inputs explained

Masks with sound ultrasonic welds:
Total masks welded and inspected:
Target ultrasonic weld yield rate:

How to use the result

Use it when tuning weld parameters, auditing a horn or anvil, or monitoring an assembly station for bond drift.
It counts pass versus fail only; it does not grade weld strength margin, so a weld that barely passes a pull test counts the same as a strong one.

Current U.S. benchmarks

U.S. manufacturing runs at 75.6% of capacity with new factory orders at $657B per month (Federal Reserve and Census, May 2026).

Common questions

How do you calculate ultrasonic weld yield? Divide masks with sound welds by total masks welded and multiply by 100. With 8 good out of 250, the weld yield is 3.2%, a small good count against the full inspected population.
What does the weld yield gap to target tell me? It is weld yield minus target in points. A 3.2% rate against a 95% target is 91.8 points short, which signals a serious weld fault or reversed inputs, not normal variation.
What is a good ultrasonic weld yield on a mask line? A well-tuned ear-loop weld station usually runs 96-99% first-pass yield. Results in the low single digits, like this 3.2%, point to a cold-weld condition, worn anvil, or wrong parameters rather than ordinary scatter.
What causes ultrasonic weld yield to drop? Low amplitude or pressure gives cold, weak welds; too much gives marked-through or torn media. Anvil wear, horn detuning, and contaminated media all pull yield down, so a sudden drop is a cue to check the stack.
Ultrasonic weld yield vs overall mask yield? Weld yield covers only the bonding step; overall mask yield also folds in filter media, nose-wire and strap defects. Overall yield is therefore usually lower once the other losses stack on the weld station's result.

Last reviewed 2026-05-12.