Beverage lines run fast, they run wet, and they handle containers that are either very light or very breakable. Everything before the filler is about getting empty cans, bottles, or jars off pallets, oriented, and fed one at a time. Everything after it is about labeling, grouping, packing, sealing, stacking, and wrapping them into a pallet load that survives distribution. This page belongs to the packaging industries section, next to the pages on bottled water, breweries, and food packaging.
Packaging chain overview
A beverage line has three stages, and most of the engineering sits at the boundaries between them.
Primary packaging is the container that touches the drink. At the infeed, a depalletizer or bulk unloader strips layers of empty cans or bottles from the pallet, and conveyors carry them to the filler. Around the filler you find rinsing or inspection and a seamer or capper. Many plants add a labeler, a date coder, and a fill-level or seal check.
Secondary packaging groups the finished containers into the unit a store or distributor handles: shrink-wrapped multipacks, tray and film packs, paperboard carriers, or corrugated cases. It includes bundling or case packing, case erecting where cartons are used, and case sealing.
End of line turns cases and multipacks into stable pallet loads. A palletizer builds the pattern, a stretch wrapper secures the load, and a pallet conveyor moves it to the warehouse. The end-of-line packaging section covers each machine here, and the palletizing section goes deeper on the pallet build.
The filler sets the pace, so the rest of the line is sized from its rated speed. A depalletizer that cannot keep the filler fed, or a palletizer that cannot clear the case packer, turns a fast filler into a stop-and-go line.
Typical containers and packs
Beverage plants handle a wider range of containers than most industries, and each one stresses the equipment differently.
Aluminum cans are light when empty and stack in large layers, so they are usually unloaded with a layer-sweep or bulk depalletizer. Filled cans are stiff and stable and tolerate mass conveying and tight accumulation. They also sweat when filled cold, which is covered below.
Empty PET bottles are very light and move on air conveyors in many plants. Filled ones are sturdy enough for case packing. A supplier of air conveyors points out that PET has a delicate surface that scuffs easily unless the guide material is chosen with care, which matters most for dark-colored bottles.
Glass bottles and jars are heavy and fragile, and broken glass can contaminate equipment and product. Glass lines add partitions, careful transfers, and sometimes shatter-resistant guards at the filler. The bottle depalletizers guide shows how empty glass and plastic bottles come off the pallet. Aseptic cartons and pouches behave more like cases than bottles and are often packed by dedicated equipment.
Pack formats include open-sided or fully wrapped shrink bundles, tray and film packs with a corrugated tray under the product, paperboard carriers, wraparound cartons, and regular slotted cases. A bundler supplier describes pad-supported shrink packs as a way to keep containers from chiming or cutting through the film when the packs are stacked and palletized. The same supplier states that tray and shrink packs can cost up to half as much as regular slotted cartons. That is a vendor claim, so test it against your own damage rates and stacking requirements.
Key challenges
Speed and continuity
Beverage fillers are among the fastest machines in packaging, and the machines downstream must match that output without becoming the constraint. In practice that means continuous-motion bundlers and case packers, multi-lane infeed conveyors, and a palletizer sized to clear the end of the line during stops as well as normal running. A small stop in an unbuffered line can ripple back to the filler, so buffering matters as much as raw speed.
Wet and cold environments
Floors are wet, conveyors are lubricated or rinsed, and cold cans collect condensation in warm air. Equipment in these areas needs corrosion-resistant frames, sealed motors and sensors, and drainage. A packaging conveyor supplier recommends at least an IP66 rating on components for most food and beverage applications and notes that stainless steel frames, sloped surfaces, and open construction help water run off. For the cleaning method you actually use, ask the supplier to state pressure, temperature, and chemistry, not only an IP code.
Sweating cans need their own note. Moisture weakens cartons, makes printed film and adhesive less reliable, and reduces the grip of vacuum and mechanical grippers. Plants handle it with can warmers, air knives, wet-rated packers, or a pack format that tolerates moisture.
Glass handling
Glass adds breakage risk and a hygiene concern. Hard stops, rail impacts, and uncontrolled transfers produce cracks that show up later as leakers. Glass conveyors favor smooth, gradual transfers, wide curves, plastic wear strips where appropriate, and low back pressure. Rejects and cullet need a plan, because broken glass cannot simply be pushed down the line.
Light and unstable containers
Empty PET bottles and thin-wall cans can tip, crumple, or jam at conveyor transfers. Careful rail setting, speed matching between conveyors, and gentle accumulation do more here than any single machine choice. The bottle conveyors guide describes how single-file and mass flow behave with light containers.
Format and SKU proliferation
Even large beverage plants rarely run a single package. Flavors, sizes, seasonal packs, and retail-specific variety packs multiply formats, so changeover time, recipe-driven adjustments, and pallet pattern flexibility become selection criteria.
Recommended equipment stack
For a typical filled-container beverage line, the stack in order from the infeed is:
- Depalletizer for empty containers. Use bulk depalletizers for cans and loose-packed bottles and bottle depalletizers for layer-based unloading of bottles and jars.
- Bottle and can conveying between the filling machines. See the bottle conveyors guide.
- Accumulation between the filler section and the packer so that short stops do not travel upstream. See accumulation conveyors.
- Case packing or bundling. Choose a case packer for cases and trays, a robotic case packing cell where formats change often, or a shrink bundler for film packs.
- Case erector and case sealer when corrugated is used. See case erectors and case sealers.
- Case conveyors to carry packs to the palletizer.
- Palletizer. High rates usually point to a conventional palletizer, either high-level or low-level. Mixed formats at moderate rates suit robotic palletizers.
- A stretch wrapper and pallet conveying to secure and stage the finished load. The pallet handling page covers that stage.
Design considerations
Line balance
Rate every end-of-line machine above the filler’s output so it can catch up after a stop. A simple check: divide the filler’s output in containers per minute by the containers per pack to get the packs per minute the packer and palletizer must absorb. A filler delivering 600 cans per minute into 24-can packs needs a packer and palletizer chain that clears 25 packs per minute, plus margin. That is an arithmetic example, not a recommendation for any real line.
Accumulation and buffering
Size accumulation by how long you need to ride through a downstream stop, multiplied by the filler output. A pack buffer after the packer protects the filler from palletizer stops, and a container buffer ahead of the packer protects it from packer stops. Where floor space is tight, a vertical or spiral buffer adds storage, and the vertical conveyors guide compares options.
Reject and rework
Plan rejects at the points where defects appear: low fill, missing cap, bad label, damaged pack. Reject conveyors need their own accumulation and a clear way to return good product to the line. Glass rejects should not travel back into the main flow.
Floor space
Palletizers, wrappers, and pallet storage take more room than many first layouts allow. Put the whole end of line on the layout early, including forklift paths, pallet staging, and service access. The packaging line layout guide and the layout page work through the trade-offs.
Controls and data
A line that shares status, counts, and fault states between machines recovers from stops faster and makes OEE tracking easier. Decide early which machine sets the pace and how the others are told to slow or stop.
Example line configuration (illustrative)
Illustrative example. Consider a canned-beverage line packing shrink-wrapped 12-packs. Empty cans arrive on pallets and are unloaded by a layer-sweep depalletizer onto a wide mass conveyor. A can rinser and filler/seamer sit in the middle, with a date coder and a fill-level inspection unit after the seamer. A can dryer or warming section removes surface moisture before the cans enter an accumulation table. From there, a shrink bundler forms 12-packs, with a pad inserter under each pack to protect the film during stacking. Packs travel on a case conveyor with a short vertical lift to a mezzanine, where a low-level palletizer builds layers directly from the conveyor stream and a stretch wrapper finishes each pallet.
A second version of the same line uses glass bottles and corrugated cases. The depalletizer is a layer-based bottle unit with a slip sheet remover, the filler is followed by a labeler, and a case packer places bottles into dividers inside erected cases. Case sealers close the flaps, and a conventional high-level palletizer stacks the cases. This configuration is a sketch to show how pack format changes the stack. It does not describe a real customer project.
Standards and references
In the United States, OSHA’s general requirements for all machines call for guarding against hazards such as point of operation, ingoing nip points, and rotating parts, and the lockout/tagout rule covers service work. Washdown and ingress ratings are described by IEC 60529, and suppliers use them to state how equipment withstands cleaning. Ask for the cleaning pressure, temperature, and chemistry behind the rating, not only the code.
Beverages that fall under food regulations also need equipment that can be cleaned and kept sanitary. Where the product is classed as food, the food packaging page lists hygienic design references from 3-A and EHEDG and the U.S. FDA current good manufacturing practice rules. For the conveyor and bottle-handling side, see the bottle handling and case handling application pages. To select the pallet build machine, start with the how to choose a palletizer guide. When you are ready to put numbers on layout and throughput, read the line design page.