Yes. An automatic packaging machine supplier can provide a shrink wrapping system that combines product feeding, film unwinding, sealing, heat shrinking, cooling, and discharge in one line. Commercial systems range from compact intermittent sealers to continuous-motion equipment rated above 100 packs per minute, depending on product length and film. PE film is common for bottle and can bundles, while POF is often used for retail packs requiring higher clarity. A useful quotation should specify actual product dimensions, film gauge, pack pattern, line speed, tunnel size, electrical supply, changeover requirements, and safety configuration rather than quoting machine speed alone.
A shrink wrapping system normally starts several metres before the shrink tunnel. Products must arrive at controlled spacing, orientation, and speed before film reaches them. A line running 60 packs per minute has only 1 second available for each pack at nominal output, so inconsistent infeed spacing can reduce usable production even when the wrapper itself is rated for considerably more.
That is why the infeed arrangement deserves the same attention as the sealer. Photoelectric sensors can confirm product position, while guides, timing belts, lane dividers, pushers, and servo-controlled conveyors can separate or group products. For a 3 × 2 bottle bundle, for example, six containers must form a repeatable group before film is applied; otherwise the finished bundle may leave the tunnel with uneven sides.
Machine speed should be stated for a defined product, film, and pack pattern. “Up to 100 packs/min” gives little engineering information if the tested product size is not stated.
Once spacing is stable, film selection sets another group of operating limits. POF is widely used where package clarity and a relatively neat finish are required, while PE is common for heavier multipacks such as bottled beverages. Film thickness, roll width, sealability, shrink behavior, and allowable heat exposure all affect the machine configuration.
A simple specification sheet can prevent mismatched equipment:
| Item | Information the supplier needs | Why it matters |
|---|---|---|
| Product | Length × width × height, weight | Sets opening, conveyor and tunnel dimensions |
| Output | Packs/min or products/min | Sets sealing and conveyor capacity |
| Film | PE/POF, thickness, roll width | Affects sealing and tunnel settings |
| Pack pattern | Single, 2 × 3, 3 × 4, tray pack | Determines grouping equipment |
| Utilities | Voltage, frequency, compressed air | Affects installation |
| SKU range | Minimum and maximum dimensions | Sets adjustment range |
Film specification leads directly to sealing technology. L-bar sealers suit many fully enclosed retail packs, while sleeve wrappers are commonly used where film needs to wrap around grouped products without completely enclosing every side. Continuous-motion sealing can support higher throughput than an intermittent cycle, but the practical rate still depends on pack length and required separation between products.
A useful capacity check starts with pitch. If a finished pack is 400 mm long and the process needs a 100 mm gap, each pack occupies 500 mm of conveyor length. At 30 packs per minute, the line moves roughly 15 m/min through that section. Raising output to 60 packs per minute roughly doubles the required product travel rate to 30 m/min unless spacing or machine architecture changes.
The sealed pack then enters the shrink tunnel, where temperature alone does not determine the result. Air velocity, airflow direction, residence time, conveyor speed, tunnel opening, heating-zone length, film thickness, and product mass all influence shrink performance. Two products using the same film can therefore need different settings.
For example, a 1.5 m heated section operated at a conveyor speed of 10 m/min gives about 9 seconds of nominal travel through that section. Increasing conveyor speed by 20% reduces residence time to about 7.5 seconds. The operator may then need a different temperature or airflow setting to maintain package quality, provided the film and product tolerate it.
That relationship is why an experienced supplier normally asks for representative products and film before final acceptance. A factory acceptance test can run multiple samples rather than judging one visually acceptable pack. Testing 50 or 100 consecutive packs, for example, provides much more useful information about repeatability, seal position, film tracking, jams, and temperature stability than inspecting a single package.
A repeatable test should record the product, film grade and thickness, line speed, tunnel settings, sample quantity, rejected packs, and reason for each rejection.
Testing also needs to cover SKU changes. A factory producing five package sizes may spend more operating time on adjustment than expected if guide rails, film position, sealing height, tunnel settings, and conveyor parameters all require manual changes. Stored recipes and position indicators can shorten repetitive setup work, but only when the mechanical adjustment range covers every approved SKU.
A supplier should therefore receive the smallest and largest package dimensions, not just the best-selling format. If product width ranges from 120 to 480 mm, that 4:1 range affects guide adjustment, film width, sealing dimensions, and potentially tunnel selection. A machine designed around the 300 mm product alone may require additional parts when either extreme enters production.
After individual machine settings are established, line integration becomes the next engineering task. A wrapper rated for 80 packs per minute cannot continuously accept 80 packs if an upstream grouping station supplies only 65. Likewise, a downstream palletizer stopping for 30 seconds can create substantial accumulation unless the conveyor layout provides enough space or communicates a controlled stop upstream.
Accumulation can be estimated before installation. At 60 packs per minute, a 20-second downstream interruption represents 20 packs arriving while discharge is unavailable. Their required conveyor length depends on pack pitch, so a 500 mm pitch would theoretically require about 10 m of single-file accumulation if production continued unchanged for the full interruption.
That calculation also explains why PLC communication, sensors, interlocks, and variable-speed conveyors matter. Instead of allowing products to collide at a stopped machine, controls can slow feeding, hold upstream equipment, or restart sections in sequence. The appropriate arrangement depends on how the surrounding production equipment is designed.
Electrical and mechanical safety must be treated as part of that integration work. ANSI/PMMI B155.1-2023 covers industrial and commercial machinery performing primary, secondary, and tertiary packaging functions, including associated conveying equipment and coordinated packaging functions on a production line. PMMI states that the 2023 revision addresses formal documented risk assessment and clarifies responsibilities for machinery suppliers and users.
For international machinery design, ISO 12100:2010 remains a published standard as of 2026 and sets out principles for machinery risk assessment and risk reduction. ISO reports that the 2010 edition was last confirmed in 2022, while a replacement remains under development. A buyer should therefore ask which standards and local regulatory requirements the proposed machine has been designed around rather than accepting a general statement such as “standard safety system.”
Practical safety provisions can include interlocked guards around sealing and cutting mechanisms, emergency-stop devices, protection from hot tunnel surfaces, controlled access to moving conveyors, and procedures for maintenance. Exact requirements depend on the machine and risk assessment; a guard arrangement suitable for a small intermittent wrapper may not be sufficient for a long automated line with multiple access points.
Documentation belongs in the purchase specification as well. ISO’s current work on ISO 20607 addresses safety-related content in machinery instruction handbooks across machine life-cycle phases, showing why manuals should cover more than basic startup. A buyer can request operating instructions, electrical drawings, pneumatic diagrams where applicable, spare-parts lists, maintenance intervals, and safety information before shipment.
Maintenance access then affects how useful that documentation is on the factory floor. Seal blades, belts, chains, sensors, heaters, fans, rollers, and film-feed components are easier to service when technicians can reach them without removing unrelated assemblies. Even a 15-minute difference in a routine service task becomes 13 hours per year when the same task occurs once each week.
Energy requirements deserve similar attention because the tunnel is usually a substantial electrical consumer within the wrapping process. Comparing suppliers should include installed heating power, warm-up procedure, insulation, standby operation, conveyor motors, and expected operating schedule. A line operating two 8-hour shifts has a different annual energy profile from equipment used for one 4-hour production campaign each week.
The purchase comparison can therefore use measurable acceptance points rather than broad descriptions:
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Run the agreed product at the contracted rate for a defined period, such as 30 or 60 minutes.
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Record a sample of at least 100 consecutive finished packs when production conditions allow.
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Check seal integrity, film position, shrink appearance, product orientation, and rejected packs.
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Test the minimum and maximum approved SKU sizes.
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Verify emergency stops, guards, interlocks, alarms, and restart behavior.
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Complete at least one planned product changeover and record the actual time.
Those checks also help separate nominal machine capacity from usable factory capacity. A wrapper may demonstrate 70 packs per minute for a short run but require frequent film changes or long format adjustments. At 70 packs per minute, every 10 minutes of stopped production represents a theoretical 700-pack difference before upstream and downstream effects are considered.
Film-roll dimensions can be included in the same calculation. If one roll supports 90 minutes of operation and changing it takes 6 minutes, three changes during a long production period consume 18 minutes. A larger roll, dual-roll arrangement, or faster film-loading method may matter more to daily output than adding another 5% to the machine's advertised maximum speed.
Factory space is another measurable constraint. Equipment drawings should show the wrapper, tunnel, electrical cabinet, conveyor sections, door swing, film-loading area, and service clearance. A 6 m machine installed against a wall may occupy less floor area on a drawing but become difficult to maintain if a technician needs access to components on both sides.
Layout information should also include conveyor height and product flow direction. Existing lines may use a fixed working height, and raising or lowering packages abruptly can be unsuitable for unstable bottles or stacked products. A supplier can use transition conveyors or modify the wrapper height when the information is available before fabrication.
Commercial comparison is more useful when the quotation separates machine scope from site work. Buyers can ask whether the quoted amount includes infeed and discharge conveyors, shrink tunnel, film holder, guarding, controls, installation, commissioning, training, freight, spare parts, and format parts. A 2026 quotation excluding several of those items should not be compared directly with an integrated-line quotation that includes them.
After-sales capability can be specified just as clearly. Instead of asking whether “technical support” is available, ask for normal response hours, remote diagnostic capability, spare-parts identification procedure, warranty scope, technician availability, and recommended spare parts for the first 12 or 24 months. Those answers can be written into the commercial and technical documents before an order is placed.
The same level of detail should apply to the automatic packaging machine supplier itself. Relevant questions include whether the company builds the wrapper and tunnel, integrates third-party equipment, programs the controls, performs factory testing, provides drawings before production, and can test actual customer products. One supplier may sell a standard machine; another may take responsibility for the infeed-to-discharge line.
A complete request for quotation can therefore include 10 to 20 representative product specifications rather than a short message asking for a “fully automatic shrink wrapper.” Product drawings, photographs, film data sheets, target packs per minute, daily operating hours, layout dimensions, electrical standards, desired pack patterns, and upstream/downstream equipment information give engineers enough material to propose equipment around real operating conditions.
For a line expected to remain in service for 5 or 10 years, buyers should also discuss future SKU ranges before the design is frozen. Leaving reasonable adjustment capacity for a planned package size may cost less than replacing a sealer, tunnel, or conveyor later. The requested range should still be realistic; designing around hypothetical products far outside the existing range can increase machine size and complexity without a defined production requirement.
A shrink wrapping project is therefore best specified through numbers that can be checked: product dimensions, weight, film, packs per minute, pack pattern, changeover time, utility supply, tunnel and conveyor dimensions, safety requirements, sample quantity, and acceptance criteria. When those figures are agreed before manufacturing, both buyer and supplier can test the same requirements at factory acceptance and final commissioning.