Packaging Machines / Vertical Form Fill Seal
Chips Packaging with Nitrogen Flushing
Multihead weigher and VFFS bagger with nitrogen flush for potato chips, banana chips, popcorn and puffed snacks, with low-drop handling for fragile snacks.
- Nitrogen flushing before sealing
- Low-drop product handling
- Multihead weighing and film-roll bagging
Configuration & Selection
Confirm bulk density, acceptable breakage, bag volume and the gas supply available at your factory.
Published Configuration Data
| Packaging Speed | 20 - 45 bags/min (Subject to bag volume and gas flushing volume) |
|---|---|
| Bag Size Support | Length: 150-400mm | Width: 100-280mm (Customizable Formers) |
These values describe the listed configuration. Output depends on the product, fill quantity, bag and options. Confirm the final specification and trial conditions in your quotation.
The complete snack packaging sequence
This configuration brings together bulk feeding, multihead weighing, vertical bag forming and nitrogen introduction before closing the package. It is intended for products such as potato chips, banana chips, popcorn and puffed snacks, with the handling arrangement selected for their fragility and volume. The machine makes bags from roll film; it does not require an operator to hold a purchased pouch under the filler. That distinction affects the film supply, change parts and production layout.
The most important relationship is between snack volume, product travel and available sealing time. A light bag of large chips can occupy considerable space, while a denser snack may reach the target weight with a smaller dose. Nitrogen adds a further part of the cycle and a utility requirement. Review the product route and gas stage together so that an attractive inflated bag does not conceal excessive broken product, incomplete filling or an unstable seal.
Locating the transfers that damage chips
Follow a representative chip from the supply container to the finished bag. The relevant transfers include the elevator discharge, the spreader area, feeder pans, weighing hoppers and the final chute into the forming tube. Each impact or abrupt change in direction can contribute to breakage. The source configuration describes low-drop and gentle-handling arrangements, but their suitability must be judged using your chips rather than their appearance in an equipment drawing.
Collect samples at several points where access is safe and the trial plan allows it. Compare whole pieces and fines using one consistent inspection method. A bagger trial cannot show whether damage happened upstream if the incoming product was not examined first. Pay attention to the last part of a production container, which may contain more small fragments than the top. Record how the feeder responds to this variation and whether fines build up in pans or near the sealing area during continued operation.
Weigher capacity is also a volume decision
For chips and popcorn, hopper volume can be as important as target mass. Bulky product may occupy the available space before a hopper contains a useful weighing portion. Large curved pieces can also bridge across an opening or travel unevenly over a feeder. Ask the supplier to relate the hopper arrangement and discharge throat to the measured bulk behavior of the actual snack. A photograph of a multihead weigher does not establish that its contact parts are suitable for your largest pieces.
Demonstrate the low and high target weights that matter to the production plan, along with representative chip sizes. Watch whether product remains in a hopper after opening and whether simultaneous discharges collide in the chute. The chosen dosing pattern should be reviewed with bagger timing. Raising the feed rate without resolving a restricted discharge path can make the accumulation worse. The trial record should therefore connect weight results with visible product flow, rather than presenting the final weight distribution alone.
Nitrogen flushing and package headspace
The nitrogen stage introduces gas before the top seal closes. Its operation needs to be matched to the bag volume, filling sequence and available gas supply. Ask where gas enters the bag, how its flow is controlled and what the line does if the supply becomes inadequate. The equipment quotation should distinguish the flushing device from any external nitrogen supply equipment, regulators or plant connections that the buyer must provide.
An inflated bag is a visual observation, not a measurement of the atmosphere inside it. If residual oxygen is part of the acceptance requirement, agree on the sampling procedure and measurement timing with the packaging team. Avoid using a catalog shelf-life statement as a substitute for product and package testing. Headspace also affects handling: too little room may press fragile chips against the film, while a very bulky pack may cause difficulties in cartons. Evaluate gas settings with the intended retail appearance and transport arrangement in view.
Choosing the film and filled bag volume
The catalog lists bag lengths of 150–400 mm and widths of 100–280 mm with customized formers. It also gives a packaging speed of 20–45 bags per minute, explicitly dependent on bag volume and gas flushing volume. Treat these figures as configuration discussion ranges. A long, highly inflated family pack and a smaller compact snack pack should each be assessed as separate operating points, even when they use the same basic machine family.
Provide the laminate specification and a finished-pack sample with its actual fill. Check the usable internal volume below the intended top seal, not only the outside dimensions of the empty bag. Printed artwork must leave space for sealing, cutting and coding in the selected arrangement. During the trial, inspect film tracking and wrinkles around both seams. Test the package using the quality method chosen for your laminate and distribution requirements; a smooth-looking seal may still require closer examination at folds and contaminated areas.
Keeping seasoning away from the closing area
Seasoning dust and broken chips can travel differently from whole pieces. They may fall late, settle on contact surfaces or be disturbed during the gas stage. Observe the area above the transverse jaws through several operating cycles and after a short stop. The objective is to understand when the final particles pass the sealing zone and whether the proposed discharge path provides sufficient clearance before closing.
Cleaning should address the accumulation points identified during that observation. Discuss access to the feeder pans, hopper interiors, chute and forming assembly. Where different flavors share the equipment, include a line-clearance and cleaning procedure that reflects the plant's own allergen and flavor controls. Do not assume that a metal contact surface can be washed in place using any method. Obtain the cleaning instructions for the supplied components and allow the required access in the layout. After refitting parts, check that their alignment preserves the gentle product path demonstrated during the trial.
Matching the bagger to conveyors and packing
A nitrogen-filled snack bag behaves differently from a dense solid pack on a conveyor. It can roll, bounce or accumulate unevenly if transfer heights and guides are poorly matched. Include the discharge conveyor and the next inspection or packing operation in the line review. Watch bags leave the jaws and travel through a realistic series, rather than accepting samples removed by hand before they reach the normal outlet.
Carton packing may set a practical limit on the desired inflation and bag dimensions. Compare filled packs in the intended case and assess the way pressure is applied when the case is closed. The line layout also needs space for replacing film rolls, reaching the gas controls and removing product-contact parts. If inspection equipment is required, identify its location and reject handling in the proposal. These interfaces determine whether the bagging cell can operate as part of the factory, beyond the individual machine's catalog description.
Setting useful trial and quotation criteria
Send snack samples from normal production, including the typical range of piece sizes and seasoning. State target weight, empty-bag dimensions, desired filled volume and acceptable appearance after packing. Provide the film construction and describe the available nitrogen supply, or ask for a clearly scoped supply proposal if it has not been selected. Mark the product most vulnerable to breakage so that the handling demonstration tests the difficult requirement first.
Agree how incoming and packed breakage, weight, seal condition and any gas measurements will be recorded. Include startup, a pause and a restart to expose retained fragments or timing changes. Ask for the proposed equipment arrangement and the optional features itemized separately. Final operating claims should be tied to the tested product, film and bag size. That gives a usable basis for comparing configurations and avoids treating the maximum catalog speed as the output for every snack in the range.
Prepare for a Configuration Review
- Measure incoming and packed chip condition with the same breakage method.
- Provide filled bag volume and nitrogen-supply details with the target weight.
- Check gas measurements, seal contamination and carton fit on trial packs.
Bag Format Selection
Review the pack requirements for your enquiry. Compatibility is confirmed for the selected equipment and sample.
Planning Guides for This Configuration
These pages cover the system type, trial preparation and project checks that apply to this configuration.
Request a Packaging Configuration
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What to Include in Your Enquiry
Send the product name and samples, target fill weight or volume, bag dimensions, packaging material, required output and destination country. Include your factory layout and utilities if available.