Comparison · Aluminum Can
Aluminum Can Filling — Comparing Machine Configurations and Price Levels
Three tiers, one product decision — compare valve family, seamer and total cost on a normalised scope.
3
Configuration tiers
6,000–36,000
CPH range
202/211
Common can diameters
444+
Lines delivered
71+
Countries exported
Short answer: Can filling lines fall into economy, mainstream and high-speed tiers set by output and automation, not by quality. The valve family is fixed by the product — gravity or volumetric for still, isobaric for beer and CSD, hot-fill for juice and tea — while the seamer, set by can end and head count, is often the larger price driver. Compare quotations on a normalised scope and on total cost, not on the sticker price, because missing CO₂ recovery, seam verification or commissioning is the usual source of apparent savings.
🎯 Key takeaways
- Three tiers, not three qualities — economy, mainstream, high-speed by output and automation
- Valve family fixed by product; compare count and control within it
- The seamer often costs more than the filler difference — head count and tooling
- Compare on normalised scope — missing CO₂ recovery or seam check hides price gaps
- TCO beats sticker price — utilities, wear parts and changeover recur for line life
- Specify every can and end now — change parts handle the rest, turret does not
On this page
1. Why compare can configurations
Can filling machines look alike and diverge in what they cost and what they can run. The differences are in the valve family, the valve count, the seamer head count, CO₂ recovery and the downstream automation. Comparing on a normalised scope prevents paying for speed or capability the volume will never use — or buying below what a seasonal peak demands.
The selection logic that fixes the valve family is in the aluminum can selection guide; this page compares the tiers once that choice is made.
The single feature that makes can comparison different from bottle comparison is the seamer. On a bottle line the capper is a known, bounded item; on a can line the seamer head count, seam verification and tooling are a cost and a speed centre in their own right. Any can-line comparison that does not put the seamer on the table next to the filler is comparing half the machine.
A useful habit is to write one scope list and send it to every supplier, so each answers the same questions and the comparison is real rather than a clash of different assumptions. The gaps that appear in the answers are where the price differences actually live, not in the headline tier name.
2. Three configuration tiers
Most can lines fall into three tiers, set by output and automation rather than by quality. A regional line happy at 9,000 CPH gains nothing from a 48-valve turret it cannot feed.
| Tier | Valve | Output | Seamer | Best for |
|---|---|---|---|---|
| Economy | Gravity or volumetric | 6,000–12,000 CPH | Single-seam, matched | Regional still, juice, water |
| Mainstream | Isobaric or hot-fill | 12,000–24,000 CPH | Paced seamer, CO₂ recovery | Beer, CSD, juice |
| High-speed | Isobaric | 24,000–36,000+ CPH | Multi-head seamer | High-volume CSD and beer |
A hot-fill tier sits across these bands for juice and tea: the valve is heat-rated and the can and end are temperature capable, but the output band follows the same valve-count rule. Do not read 'hot-fill' as 'high-speed'.
The CPH rating matters when you compare across formats. A can line is quoted in CPH and a PET or glass line in BPH, so a 24,000 CPH can line and a 24,000 BPH PET line are different drink volumes per hour at typical can and bottle sizes. Compare can lines to can lines on CPH, and only translate to drink volume when weighing one format against another.
Sleek and slim cans usually stay within a tier rather than jumping one, because they reuse the body diameter and only change height and wall profile. The throughput impact is infeed and seamer timing, not valve count, so a line specified for the standard can of the family usually absorbs the sleek variant without a tier change. Confirm the sleek variant is in the scope.
3. Valve family and what it changes
The valve family is fixed by the product, so the comparison is about count and control level within that family. Isobaric and hot-fill valves cost more per station than gravity valves because they manage pressure or temperature as well as volume.
| Valve family | Relative station cost | Adds | Needed for |
|---|---|---|---|
| Gravity / volumetric | Lowest | Level or volume control | Still water, still drink |
| Isobaric counter-pressure | Higher | CO₂ management, foam control | Beer, CSD |
| Hot-fill (85–88 °C) | Higher | Heat-rated path, snift | Juice, tea shelf-stable |
| Volumetric / load cell | Higher | Measured dosing | Exact declared volume |
Within a family, control level is the second cost lever. A mechanical valve is cheaper than a semi-electric or volumetric version of the same principle, and the difference shows up in changeover and repeatability, not in whether the can fills. Buy the control level the tolerance demands.
For cans, measured dosing is less often the deciding factor than for PET, because can volume is consistent and there is no blow variation to absorb. Level filling holds volume well, and volumetric or load cell dosing is specified for tight declared quantity or high-value product rather than as standard. The valve family is still set by carbonation and temperature.
4. The seamer is a separate cost centre
Seamer head count, seam verification equipment and tooling for the end diameter drive can-line price as much as the filler does. A seamer that cannot keep pace with the filler caps the line at the seamer rate, so the two are quoted as a pair, not separately. Two quotations that look close can hide very different seamers.
| Item | What it sets | Note |
|---|---|---|
| Seamer head count | Max close rate | Must match filler valve count |
| Seam verification | Food-safety check | Vision or manual teardown |
| End tooling | End diameter (200/202) | Change parts for other ends |
| CO₂ recovery | Run cost | Pays back in gas and product |
If you run more than one can size or end, the changeover between seam tooling is a project in its own right. State every can and end at quotation and ask for the change time, because that downtime recurs for the life of the line.
Seam quality is a food-safety item, so seam verification is not optional on a can line. A leaker is a recall risk, not a cosmetic defect, and the defence is setup at commissioning plus routine teardown and roll inspection. Treat seam verification as part of the seamer scope, and price it accordingly, rather than discovering the need after a complaint.
5. Comparing on total cost, not sticker price
Two lines at the same headline price rarely cost the same to own. Evaluate on normalised scope and on the items below, treating all figures as indicative and configuration-dependent.
| Cost element | What to check | Typical effect |
|---|---|---|
| Scope included | CO₂ recovery, CIP, seam check, packer | Largest price gaps |
| Valve + seamer vs need | Sized to sustained output | Idle capacity wastes capex |
| Changeover time | Can and end change parts | Downtime on multi-SKU lines |
| Utilities | Air, power, CO₂ per 1,000 cans | Recurs every shift |
| Wear parts | Seals, gaskets, seam rolls | Repeats for line life |
| Service access | Local support, spares lead time | Hidden cost of downtime |
Normalise the scope before comparing prices. Send one scope list to every supplier and require each to answer it line by line, including exclusions. Missing CO₂ recovery, seam verification or commissioning is the usual source of apparent savings.
A second TCO trap is the commissioning spare part set. A line quoted without it looks cheaper until the first worn seam roll or seal stops production and the part is a lead time away. The set is small relative to the machine but large relative to a day of downtime, so confirm it is included and that long-lead items are identified at handover.
6. Common comparison mistakes
Five errors recur in can-line quotations:
- Comparing different scopes. One quote includes CO₂ recovery and seam check; the other omits them.
- Rating the filler without the seamer. The line speed is the lower of the two; quote both.
- Underspecifying the seamer. A slow seamer makes a fast filler pointless.
- Ignoring changeover. Multi-SKU plants lose more time to changeover than to speed.
- Buying a valve family for a product you do not run. Isobaric or hot-fill capability you will not use is silent capex.
A sixth mistake is forgetting the can supply. The line is only as available as the empty cans and ends delivered to it; a seamer specified for an end diameter your can supplier does not make is a line waiting on tooling. Confirm the can and end supply, including sleek variants, before the seamer is specified, not after.
7. Which tier to specify
Match the tier to sustained output and automation, not to ambition:
- Regional still / juice: economy tier, gravity or volumetric valve, matched seamer.
- Beer or CSD: mainstream tier, isobaric valve, CO₂ recovery.
- High-volume CSD / beer: high-speed tier, multi-head seamer, full automation.
- Multi-product: specify every can and end now; change parts, not turret, handle the rest.
Where cans are part of a wider mix, the filler range is in aluminium can filling machines, and complete lines are scoped in beer and carbonated drinks production line solutions. Common questions are answered in the aluminum can FAQ.
Buy the tier your volume justifies. An economy line over-specifies nothing and a high-speed line under-used is capital parked on the floor.
Lead time belongs in the comparison even though it is not in the price. A high-speed line from a busy builder may carry a longer slot than an economy line from a smaller shop, and the difference can matter more than the tier if your market window is fixed. Put the delivery date and payment milestones on the table with the configuration, because a cheaper line that arrives after the season is the expensive one.
Standardise the can end across your range where you can. One end diameter means one seamer tooling set and one seam specification to manage, which simplifies spares and training. Multiple ends are manageable but cost changeover and verification overhead, so choose the number of ends for a reason, not by default.
Confirm that commissioning, training and a commissioning spare part set are in the price, because a can line that arrives without seam setup support or spare seam rolls is not a running line. These items are small relative to the machine and large relative to time to first sale, so name them in the scope before signing.
Frequently asked questions
What is the cheapest can filling configuration?
A gravity or volumetric valve filler plus a single-seam seamer at modest output, with semi-automatic packing. It suits regional still-drink, juice and water canning where capex dominates. The limit is speed and automation, not reliability.
When does a hot-fill can configuration pay off?
When the product is shelf-stable juice or tea filled hot at 85–88 °C for ambient shelf life. Hot-fill needs a heat-rated filler and a can and end rated for the temperature. If your product is not hot-fill, the capability is wasted capex.
Is a higher valve count always better?
No. More valves raise rated speed only if your can and product can use it. A 60-valve turret behind a 24,000 CPH seamer is a 24,000 CPH line that cost for 36,000. Size valve count and seamer heads to your sustained output together.
Does the seamer affect price more than the filler?
Often yes. Seamer head count, seam verification and tooling for the end diameter add up, and a seamer that cannot keep pace with the filler caps the line. Clarify the seamer spec before comparing quotations.
What is usually excluded from a low quotation?
CO₂ recovery, CIP circuit, seam verification, labeller, packer, palletiser, format parts for additional can sizes, installation, commissioning, training and a commissioning spare part set. Normalise scope across suppliers before comparing prices.
Can I add a second can size later?
Change parts yes; valve count, turret and seamer heads no. A line built for one can family runs others with format parts and seamer tooling, but you cannot add valves or seamer heads to a turret. If a second family is real, specify it now or plan a second line.
About the author
Written by the Sunswell engineering team — led by Howie SUN, Founder & CEO, with 14 years in filling and blow-moulding equipment R&D and turnkey project delivery across 71+ countries.
Last reviewed: 2026-08-10 · Reviewed by Sunswell engineering team
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