Best Choice for Clients with Lower Canning Speed

Views: 5200 Author: Howie SUN Publish Time:
A can line is rated in cans per hour because the seamer sets the pace, and the seam, not the filler, is where the rating is usually lost. The fast blowing air from the high-pressure fan is sprayed out to remove the remaining water from cans outer.

Best Choice for Clients with Lower Canning Speed

Key facts at a glance
Filling systemIsobaric for beer and CSD, volumetric for juice and tea
Capacity rangeUp to 25,000 CPH
Can sizesStandard 250, 330 and 500 ml
SeamingRoller seamer integrated with the filler
OptionsHot fill for juice and tea, nitrogen dosing
Key controlFill level, seam tightness, dissolved oxygen

What changes between a beer can and a juice can?

Beer and CSD run isobaric, cold, under counter-pressure. Juice and tea often run hot fill or a volumetric fill with a downstream pasteuriser. The can is the same format; the filler, the valve set and the temperature control are not, so one can line rarely covers both without a second specification.

What does a can line cost to run that buyers forget?

Compressed air for the seamer and the air conveyor, CO2 for purging, and the tear-down cans used for seam checks every shift. None of these appear in the machine price. A line running 24,000 CPH can consume a measurable share of its operating cost in air alone.

The fast blowing air from the high-pressure fan is sprayed out to remove the remaining water from cans outer.

ProductFilling principleCritical measurement
BeerIsobaric, coldDissolved oxygen and seam tightness
CSD and sodaIsobaric, coldCO2 retention and fill height
Juice and teaVolumetric or hot fillFill temperature and seam integrity
Energy drinksIsobaric or volumetricDissolved oxygen and closure

The Aluminum Can Filling Machine for Beer, Carbonated Soft Drink is the reference unit for this configuration.

Why is can handling gentler than bottle handling?

Cans are light and rigid, so they move on air conveyors and mass conveyors with low back pressure. Dents come from jams and from accumulation pressure, not from the filler. A can line that dents is a conveyor setting problem before it is a machine problem.

For the same duty in another bottle format, the Aluminum Can Filling Machine for Hotfill Juice and Tea is specified separately.

What is the smallest viable can line?

Small can lines exist for craft producers, usually with a compact filler-seamer and manual or semi-automatic packing. The limit is not the filler but the seam quality control, which needs a tear-down station and a trained operator at any volume.

The same question is worked through from another angle in How Aluminum Can Fillers Handle Beer vs Juice.

How to read the numbers. The output figures are specification ranges; the measured rate depends on the product and the shift. Seamer stops, can-size changeover and downstream accumulation sit outside a rated CPH, so plan on 0.65-0.85.

Frequently asked questions

What is dissolved oxygen and why does it matter?

It is the oxygen left in the product after filling. It drives oxidation, off-flavour and haze. Beer and juice have tight limits, and the measurement belongs in the acceptance protocol, taken from the finished can.

Does a can line need nitrogen dosing?

It is common for beer, juice and some CSD, where headspace oxygen has to be pushed down. It is an option with a consumable cost, so it belongs in the utility and consumable schedule, not in the base price.

Why do cans dent on the conveyor?

Usually conveyor pressure or a jam at a transfer, not the can quality. Air conveyor pressure, guide rail gaps and accumulation length are the three settings to check first.

Why does a seam fail the tear-down?

Usually seamer roll pressure, chuck wear or a can flange outside tolerance. The tear-down measures the result; the cause is found by checking the rolls and the can supplier specification together.

Key takeaways
  1. CPH and BPH are different units; never compare them directly.
  2. The seamer, not the filler, is where a can line loses its rating.
  3. Beer and juice cans share a format, not a filling specification.
  4. A failed seam is a roll and flange problem, found by measurement.
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: 2026-08-28 . Reviewed by Sunswell engineering team
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