Packaging Machines / Vertical Form Fill Seal
Vegetable & Salad Weighing Packaging
A multihead weighing configuration for frozen vegetables and fresh leafy products, with feeding surfaces selected for moisture and product volume.
- Dimpled hopper-surface options
- Feeder selection for bulky products
- Vertical film-roll packaging
Configuration & Selection
Fresh salad and frozen vegetables have different temperature and handling needs. Confirm the product condition before selecting a configuration.
Published Configuration Data
| Packaging Speed | 20 - 55 bags/min (Subject to bag volume, target weight, and leaf density) |
|---|---|
| Bag Size Support | Length: 100-450mm | Width: 80-300mm (Customizable Formers) |
| Power & Voltage | 4.5KW | 220V/380V, 50Hz/60Hz (Configured to regional factory standard) |
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.
Two product conditions that need separate configurations
The vegetable configuration uses multihead weighing and vertical film-roll bagging, with feeders and contact surfaces chosen for bulky, moist or frozen material. The source catalog covers fresh leafy products as well as frozen peas, corn, diced vegetables and florets. Those are distinct applications. A fresh salad mix and an individually frozen vegetable mix should each have a defined product condition, package specification and handling trial before a common machine arrangement is accepted.
For fresh leaves, the volume occupied by a light portion and the risk of visible damage can drive the selection. For frozen vegetables, frost, clusters and hard pieces may be more important. Start by naming the actual products and the state in which they enter packaging. Include cut size, moisture, temperature and normal upstream preparation. This information lets the supplier assess the feeder and bagger as part of the process instead of selecting a configuration from the product title alone.
Feeding bulky leaves without compressing the dose
Leafy products can occupy a large volume relative to their weight. A weighing hopper or transfer opening that is adequate for a dense frozen vegetable may be unsuitable for a loose portion of salad. Ask the supplier to relate hopper volume, gate opening and the filling tube to the largest leaves and highest-volume blend in the range. Inspect how the product moves after the hopper opens, including whether leaves span the opening or remain caught on an edge.
The feeder should also be assessed for the condition of the leaves that reach the bag. Compare samples before feeding and after the complete transfer, looking for the appearance issues defined by the buyer. Excessive accumulation at the top of the weigher can change both flow and compression. Use the normal supply method during a trial and observe how the system behaves as it is replenished. A short run of hand-loaded separated leaves does not reproduce all of those conditions.
Frozen pieces, frost and mixed vegetables
Frozen peas and corn may flow differently from broccoli florets or larger cut pieces. Frost can change contact with the feeder and create clusters that do not represent a normal single piece. The proposed surfaces and openings need to be checked using the condition expected at the machine inlet. The catalog describes dimpled contact options, but the appropriate arrangement depends on the sample and should be named in the final equipment scope.
For mixed vegetables, identify whether the buyer needs only a target total weight or a particular ingredient balance in each bag. A common supply of mixed shapes can separate during transfer. If the composition matters, include a sample assessment across the run and clarify whether separate feeding equipment is required. Inspect bags for hard pieces pressing against the film, especially at corners and folds. Combine that examination with weight and seal checks so a correct portion is not accepted without considering the condition of the finished package.
The vertical bag-making and filling sequence
The bagger draws film from a roll, wraps it around a forming shoulder and tube, creates the required seams and receives a selected portion from the weigher. The product must clear the closing area before the transverse seal is made. Long leaves and irregular florets can arrive later than the main portion, making the timing and available headspace important. Observe that transition during the proposed operating cycle rather than inferring it from the finished bag alone.
If product regularly enters the sealing zone, inspect dose volume, discharge restrictions and bag dimensions together. A faster jaw movement cannot solve every obstruction, and a larger weight target may require a different bag format. The supplier should show which settings and change parts establish the intended product path. During a printed-film trial, inspect the relationship between the registration mark, cut position and seam. The pack must have usable space for the produce and maintain the agreed appearance at the same time.
Selecting the film and atmosphere for fresh produce
Fresh produce packaging requires a film and atmosphere decision based on the actual produce and distribution conditions. A general nitrogen option on a machine should not be treated as a complete preservation process for every leaf or vegetable. Discuss the required package with the film supplier and the business's qualified product team, then give the equipment supplier the resulting material and process requirements. Any gas equipment should be scoped against that specification.
For the machine trial, provide the actual film construction and describe any perforation or other functional features that must be preserved during forming and sealing. Check the effect of handling on those features and on printed registration. Evaluate the filled bag under the intended storage and distribution program rather than relying on a catalog claim about extended freshness. The bagging run can establish whether the selected film and equipment produce repeatable sample packs; the product study establishes the performance of those packs with the produce inside.
Cleaning, drainage and condensation in the layout
Vegetable packing can involve water carried by the product, ambient moisture and routine cleaning. Share the proposed cleaning method and installation conditions before the machine is specified. Ask the supplier to identify the contact parts that can be removed, the areas that require protection and the documented limits for each electrical and mechanical assembly. Stainless steel construction alone does not define a permissible washdown procedure or establish an enclosure rating.
Review how operators will reach the feeder, hopper gates, filling tube and surfaces beneath the product route. The layout should allow inspection after cleaning and before product is introduced again. Discuss how moisture is handled around connections and control enclosures under the actual room conditions. If fresh and frozen products share equipment, the transitions between them should be part of the evaluation. A clean-looking machine in a dry demonstration area does not show how the same layout will be accessed and maintained in a damp packing room.
Reading size ranges as starting points
The catalog table lists bag lengths of 100–450 mm and widths of 80–300 mm with customized formers. It describes a speed range of 20–55 bags per minute subject to bag volume, target weight and leaf density. These qualifiers are central to the selection. A large, loose salad portion may limit the practical cycle differently from a compact portion of frozen corn, even when both target weights are inside the planned product range.
Request a format list naming the finished dimensions, usable fill area and required forming parts for each product. Check the largest leaves or florets against the filling tube and bag mouth, and inspect the filled bags after they settle. Include downstream conveyor transfers and carton packing in the review. The finished pack must travel through the actual line without undue compression, snagging or film damage. Obtain final utility requirements for the selected equipment combination rather than treating the catalog's electrical description as a complete plant connection schedule.
Preparing representative samples and acceptance observations
Submit product as it normally reaches packing, with realistic moisture, cut size and frost variation. For salad, include the bulky components that determine the available volume. For frozen mixes, include typical clusters and the normal proportion of each ingredient. Supply the proposed film, target weights and bag drawings, and describe the upstream and downstream equipment that the bagging cell must connect to.
The trial plan should compare incoming and packed appearance, complete discharge, weight, seal cleanliness and finished-bag handling. Add composition checks where mixed-product ratios matter. Include a supply refill, a pause and a restart so retained leaves or frozen pieces have a chance to become visible. Request an equipment list and contact-surface description alongside the sample results. This combination of records allows the buyer to assess the configuration for the stated fresh or frozen product condition and avoids assuming that one favorable demonstration covers every vegetable in the catalog.
Prepare for a Configuration Review
- Separate fresh-leaf and frozen-vegetable requirements in the format list.
- Test the largest leaves or florets against hopper and forming-tube volume.
- Provide the validated film/atmosphere requirements and actual cleaning method.
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.
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