How do you calculate good packaging count?

Multiply seals per cycle by available cycles for the gross, then multiply by uptime and first-pass yield. For 250 × 32 = 8,000 gross, then × 0.92 × 0.99 = about 7,286 good packs.

What's the difference between gross and good packaging count?

Gross is raw capacity — seals per cycle times cycles, 8,000 here. Good is what survives uptime and yield losses, 7,286 in the example, a gap of about 714 packs.

How much do uptime and yield each cost me?

In the example, 92% uptime loses 640 packs off the 8,000 gross, and 99% first-pass yield loses about 74 more — so downtime is the far bigger driver here.

What is a good packaging first-pass yield for seals?

Automated pouch and count packaging often runs 98-99.5% first-pass yield. The 99% in our example is solid; the bigger opportunity is the 92% uptime.

Should I chase uptime or yield first?

Compare the two loss lines. Here uptime loss (640) dwarfs yield loss (74), so recovering machine availability returns far more good packs than perfecting pack quality.

Why is my actual count below this estimate?

The model assumes a constant per-cycle rate and the entered uptime and yield. Real shifts vary by changeover frequency, jams, and SKU mix — re-run with measured values per SKU.

Gaskets, Seals, O-Rings & Elastomer Components calculator

Packaging Count Calculator

Packaging count is the number of good, ship-ready sealed packs you can expect from a packaging shift once uptime and first-pass yield are applied to the raw cycle capacity. On an O-ring and seal line, the count machine or pouch sealer rarely runs at nameplate — downtime and rejected packs both bleed off the gross. Planners and packaging supervisors use this to set realistic shipping commitments and to see exactly where the gross-to-good gap goes. The two loss lines tell you whether to chase machine availability or pack quality first.

What this calculator does

Estimate good packaged gasket, seal, or O-ring output using pack quantity per cycle, available packaging cycles, uptime, and packaging yield.
Use it when bagging, kitting, labeling, counting, bulk packing, or clean packaging needs to keep up with molded, die-cut, or extruded elastomer component output.
It multiplies seals per cycle by available cycles for a gross count, then applies uptime and first-pass yield to give the good packaged count plus the uptime and yield losses.

Formula used

Gross packaging count = seals packed per cycle × available packaging cycles
Good packaging count = gross packaging count × packaging station uptime × packaging first-pass yield

Inputs explained

Seals packed per cycle:
Available packaging cycles:
Packaging station uptime:
Packaging first-pass yield:

How to use the result

Use it to forecast shippable packaged seals for a shift and to size the gap between nameplate and realistic output.
It assumes a steady per-cycle pack rate; if cycle output varies by SKU or pack size, run it per SKU rather than blending.

Current U.S. benchmarks

The U.S. has 11,391 plastics and rubber products establishments employing about 815,988 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate good packaging count? Multiply seals per cycle by available cycles for the gross, then multiply by uptime and first-pass yield. For 250 × 32 = 8,000 gross, then × 0.92 × 0.99 = about 7,286 good packs.
What's the difference between gross and good packaging count? Gross is raw capacity — seals per cycle times cycles, 8,000 here. Good is what survives uptime and yield losses, 7,286 in the example, a gap of about 714 packs.
How much do uptime and yield each cost me? In the example, 92% uptime loses 640 packs off the 8,000 gross, and 99% first-pass yield loses about 74 more — so downtime is the far bigger driver here.
What is a good packaging first-pass yield for seals? Automated pouch and count packaging often runs 98-99.5% first-pass yield. The 99% in our example is solid; the bigger opportunity is the 92% uptime.
Should I chase uptime or yield first? Compare the two loss lines. Here uptime loss (640) dwarfs yield loss (74), so recovering machine availability returns far more good packs than perfecting pack quality.

Last reviewed 2026-05-12.