Packaging Machines / Vertical Form Fill Seal

Dried Fruit Vacuum VFFS Packaging

A vertical packaging configuration combining bag forming, filling and vacuum extraction for dried fruit and coffee.

Vacuum extraction before final sealing
Vacuum and nitrogen-cycle configuration
High-barrier laminate film handling

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Multihead weigher on a platform above a vertical bagger, shown with dried fruit pieces and vacuum-packed fruit samples — Company catalog illustration, AI-edited to remove branding. Equipment and package examples are configuration references; confirm the supplied arrangement in your quotation.

Configuration & Selection

Confirm product moisture, bag shape and the required vacuum level with a sample trial.

What the vacuum VFFS configuration combines

This configuration starts with a reel of packaging film, forms a bag around a vertical filling tube, introduces a measured portion of dried fruit and extracts air before completing the final seal. The distinguishing purchase decision is the vacuum stage: the fruit must tolerate the resulting pressure difference, and the filled pack must keep a usable shape. The company catalog describes a vacuum arrangement with an optional nitrogen cycle and matching dosing equipment. Those elements need to be selected together rather than ordered as unrelated accessories.

Raisins, dried mango slices and freeze-dried pieces present very different handling conditions. A bag that looks compact with soft raisins may crush a delicate porous piece or fold sharply around an irregular slice. Begin with the desired finished package and the actual product. Specify whether a flexible vacuum pouch or a more structured pack is required, then review how the proposed equipment creates that result.

Following product and film through the line

At the product inlet, the chosen feeder must deliver material to the dosing system without creating large clumps or an unstable head of product. Dried fruit can carry surface sugar, oil or loose particles, so the feeder and discharge path deserve inspection alongside the scale. After dosing, the portion passes through the filling tube into the partly formed bag. Timing must leave the sealing area clear before the extraction and closing sequence begins.

On the film side, the roll unwinds through tension control and the forming shoulder. Longitudinal sealing creates the tube, while the transverse seal establishes the package boundary. The vacuum equipment then needs a defined connection to the open bag or extraction chamber. Ask for a sequence drawing identifying where extraction occurs, how the filled bag is supported and when the final seal is made. A general workshop photograph cannot establish those details or show whether an offered line includes every stage.

Choosing extraction depth around the fruit

The appropriate extraction setting follows the product and package objective. Deeply collapsing the film is not automatically a better result. Soft fruit may become a compressed mass that is difficult to portion after opening; sharp edges may concentrate force against the laminate; fragile dried pieces may break during evacuation. Evaluate the product after opening as well as the appearance of the sealed bag. Include samples from the smallest and largest pieces normally present in the batch.

The source configuration also discusses vacuum with nitrogen introduction. If that route is requested, the proposal should describe the order of the stages, the intended final package condition and the means of checking it. A gas connection on its own does not define a validated atmosphere process. Agree on the measurements to record during a trial, including the extraction cycle, pack condition and any required gas measurements. Storage claims should come from testing the complete food and packaging system.

Multihead weighing and vertical bagging line component reference — AI-edited company catalog component illustration. Feeding, weighing, supporting platform, bagger and discharge arrangement are shown for comparison; the selected machine layout is confirmed separately.

Matching the laminate and sealing surfaces

A vacuum package depends on both the film barrier and its ability to form a sound seal around the intended product. Submit the laminate specification, thickness, sealing layer information and a production roll where available. The catalog identifies high-barrier laminate handling as part of this configuration, but a familiar material name does not prove compatibility with a particular roll. The supplier needs to evaluate film stiffness, tracking, forming friction and sealing behavior using the actual construction.

Pay particular attention to the product side of the seal. Sugar deposits and fruit fragments can remain near the bag mouth after filling, while extraction can disturb loose particles. Inspect the closing area during the sequence and assess the resulting seals with a method agreed by the packaging team. Increasing pressure or temperature without diagnosis can distort the laminate while leaving a contamination problem unresolved. Check corners, folds and the longitudinal seam separately from the broad flat seal area.

Dosing sticky pieces without trapping residues

The filler should be selected for the fruit's shape and flow rather than from the target weight alone. Free-flowing small pieces may feed differently from long mango strips or clustered dates. Ask which hopper surfaces, feeder arrangement and chute geometry will be supplied for the sample being tested. Surface treatment is an option to evaluate; it cannot compensate for a throat that is too narrow for the normal product size.

Observe several refill cycles during a trial. A line may look stable with a shallow quantity of freshly separated fruit but become inconsistent when the hopper is replenished from production containers. Look for bridging, delayed discharge and pieces held against the sidewalls. Record whether the next bag receives retained product from the previous dose. The cleaning assessment should include these same locations, because inaccessible residues can affect subsequent batches. Confirm how operators remove and refit contact components without losing the settings needed for predictable discharge.

Pack shape, transport and downstream handling

Define the acceptable filled shape before deciding the bag former and extraction arrangement. A compact pack may suit a carton layout, while a less tightly drawn pouch may better protect the fruit. Finished width, filled thickness, corner folds and the location of the seal all influence how the package travels onto the discharge conveyor. Ask to see filled samples transferred and accumulated, rather than examining only bags held upright for a photograph.

If a rigid or brick-like presentation is important, identify the shaping steps that are actually included. A vacuum stage alone should not be assumed to produce a repeatable rectangular block. Check how dimensional variation in the dose affects the finished pack and whether the proposed carton can accept that variation. Add downstream inspection, coding and packing interfaces to the line drawing. Their position must allow operators to see damaged or poorly formed packs and remove them before they are mixed with accepted production.

Dried Fruit Vacuum VFFS Packaging configuration review checklist — Editorial planning aid based on this configuration’s three review points. Confirm requirements with actual product and packaging samples; this is not an engineering drawing.

Changeover and routine operating checks

Changing from one dried fruit to another can require more than a new weight recipe. Residual oils, sugar coatings and long fragments may change the way the next product moves through the feeder. A practical changeover plan identifies contact parts to clean, film and former changes, vacuum settings to review and the sample checks needed before release. Ask the supplier to demonstrate that sequence with the two products most different from one another.

At startup, verify the fitted former, the loaded film, the extraction connections and the selected recipe against the job information. Observe a short sequence of filled packs before moving into routine production checks. During the run, distinguish a film-tracking problem from an extraction problem or inconsistent filling. A bag that fails to collapse could have several causes, including the extraction stage or a damaged seal. Record the observation and inspect the relevant stage instead of treating every malformed pack as a pump adjustment.

Preparing a useful trial and quotation request

Send representative dried fruit in its expected production condition, including typical clusters and broken pieces. Include the target weights, desired bag appearance, laminate information and any retained pack used as a visual reference. State whether vacuum alone or a vacuum and nitrogen sequence is wanted. If that decision remains open, ask for samples from both proposed approaches and compare product condition, sealing consistency and handling after the pack has settled.

The quotation should identify the dosing method, vacuum equipment, bag-forming parts, product-contact arrangement, utilities and downstream scope. Request a layout showing the space needed for film replacement, contact-part removal and routine service. Separate catalog configuration descriptions from acceptance criteria that will be demonstrated on your material. An informative trial record connects each sample to its product batch, film and settings. That record makes it possible to compare the proposed configuration with the actual requirement instead of relying on an impressive vacuum effect in a short video.

Prepare for a Configuration Review

Supply normal dried-fruit clusters and fragile pieces for the extraction trial.
Define the required filled shape and whether nitrogen is part of the vacuum sequence.
Inspect seal contamination and opened-product condition on the same samples.

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

Tell us what you need to pack. Leave quantity and output blank if you are still deciding. When you continue, WhatsApp opens with your enquiry written out so you can review it and send it to our team.

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.

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