| Parameter | Specification |
|---|---|
| Packing speed | 30–70 bags/min |
| Bag length | 80–350 mm |
| Bag width | 60–240 mm |
| Weighing accuracy | ±0.3–1.5 g |
| Product-contact material | SUS304 |
On this page
System integration: weigher, working platform and vertical bagger
A multihead weighing VFFS system combines bulk infeed, combination weighing and vertical form-fill-seal packaging into an automated, synchronized process line. Bulk product is transferred via an inclined Z-bucket elevator into the central dispersion cone of a 10-head or 14-head combination weigher mounted on a rigid mezzanine platform. Radial vibrating feeder pans meter product into pool hoppers, which discharge into weigh hoppers equipped with high-precision load cells.
The weigher's digital signal processor computes hundreds of hopper combinations in milliseconds to select the precise combination matching the target batch weight. A synchronized timing hopper then discharges the batch through the vertical former collar into the bag tube while continuous or intermittent servo pull belts draw the film downward. Downstream takeaway conveyors deliver finished packs to inline checkweighers and metal detectors for automatic out-of-spec rejection.
- Elevator & weigher synchronization: optical level sensors on the dispersion cone control bulk infeed conveyor starts and stops.
- Discharge timing hopper: prevents product stringing, collision and seal-contamination by holding the weighed charge until the horizontal sealing jaws open.
- Mezzanine isolation: the combination weigher platform must be structurally isolated from bagger motor vibration to ensure weighing accuracy.
- Inline quality inspection: a checkweigher checks pack weight against the agreed limits; a metal detector checks for metal contaminants. Specify the inspection devices, rejection tests and any separate tamper-evident closure requirements in the line scope.
Suitable products and contact surface selection
Combination weighers are engineered for discrete, irregular, free-flowing or fragile solid products where gravimetric precision is required. Volumetric cup fillers cannot account for bulk density variations, while multihead weighers measure exact weight with tolerances typically within ±0.3g to ±1.5g depending on piece weight.
Contact surface metallurgy is selected based on material behavior. Free-flowing dry goods use smooth food-grade stainless steel. Sticky, moist, coated or oily products require dimpled (embossed) contact surfaces to minimize contact surface area and prevent pieces adhering to bucket walls or discharge chutes.
- Dry snacks & crisps: potato chips, extruded snacks, pretzels and popcorn (smooth stainless contact parts).
- Roasted nuts & trail mixes: almonds, cashews, peanuts and mixed dried fruit (requires low drop heights to minimize breakage).
- Confectionery & gummies: hard candies, jelly beans, sugar-dusted and oiled gummies (dimpled surface contact parts).
- Frozen IQF foods: frozen dumplings, berries, meatballs and vegetables. Specify condensation exposure, cleaning method and the required ingress-protection rating when selecting the weigher and bagger.
- Hardware fasteners: screws, bolts, plastic components and metal fittings requiring durable heavy-duty weigh hoppers.
Applications and materials
This configuration serves the following products and applications. Our engineers review product behavior and pack requirements with representative samples.
- Commercial Nut Roasteries & Processors: Specially engineered for packaging whole or diced almonds, cashews, walnuts, pistachios, hazelnuts, and macadamias into retail-ready premium pouches.
- Dried Fruit & Superfood Packers.
- Daily Mixed Nuts (Trail Mix) Brands.
- Contract Packaging (Co-packing) Facilities.
Configuration and scope
We develop the equipment configuration, tooling and integration around your product, pack format and production requirements.
Included equipment
- Vertical bag forming and sealing
- Multihead weighing arrangement
Configuration items for engineering review
- Nitrogen flushing and bag-format tooling
- Feeding, platform and downstream inspection
Machine features
Review these features with our engineering team to select the configuration for your product and packaging requirements.
- Oil-Resistant Continuous Servo Sealing System: Driven by an independent servo control loop.
- Anti-Sticking Dimpled Plates for Sticky Fruits: Configured with customized dimpled (embossed) stainless steel texture on all vibratory pans, feeder buckets, and discharge chutes. This prevents high-sugar dried fruits (like raisins or cranberries) from sticking or bridging along the feed line.
- Heavy-Duty Sanitary Framework: All parts in contact with food are constructed of premium food-grade SUS304 stainless steel for quick cleanability.
Specifications and conditions
The specifications below describe this configuration with its operating conditions. We review the product, pack format, tooling and utilities for your installation.
| Parameter | Specification | Conditions |
|---|---|---|
| Packing speed | 30–70 bags/min | Operating conditions: bag volume, target weight and material flow; verify with your product. |
| Bag length | 80–350 mm | Bag-size range; the forming set must match your pack. |
| Bag width | 60–240 mm | Bag-size range with customizable forming tooling. |
| Weighing accuracy | ±0.3–1.5 g | Weighing tolerance depends on product uniformity and blend ratio; validate it with representative samples. |
| Product-contact material | SUS304 | Review the product-contact material specification for the selected units. |
How this fits the Vertical Form Fill Seal Machines process
Vertical form-fill-seal machines form bags from roll film around a forming tube, dose the product from above and seal each bag. The dosing unit, bag style and options such as gas flushing or coding define the scope of a configuration.
This machine is part of our Vertical Form Fill Seal Machines portfolio. Explore the configurations for other products and pack formats, or discuss a tailored arrangement with our engineering team.
This configuration is also listed on pages that compare the options for the same kind of product or machine.
The linked guides explain how this type of machine works and how to choose one.
Questions buyers ask about this configuration
Short answers to what buyers ask most often when they review a configuration.
How do I get output and dimensions for my product?
Use each specification with its material, format and operating conditions. Our engineers define the output, pack-size range and utilities for your production requirements.
Can I test my product before ordering?
A representative sample test helps resolve material-specific questions before quotation. Please do not ship physical samples until the team has confirmed the quantity needed and where to send them.
Is this the configuration I would receive?
We configure the machine around your product, pack formats and production requirements. Our engineering review defines the model, equipment, options and operating conditions for your project.
What defines the scope of a Vertical Form Fill Seal Machines configuration?
Vertical form-fill-seal machines form bags from roll film around a forming tube, dose the product from above and seal each bag. The dosing unit, bag style and options such as gas flushing or coding define the scope of a configuration.
Engineering support
LINEVO engineers develop machine configurations and packaging-line interfaces around your production task. We bring application review, equipment selection and technical support into one project.
Product and packaging-material trials focus on the functions that matter for your application. Our team helps with configuration, operation, parameter adjustment and maintenance planning.
Review your application
Send the following to discuss this configuration. A representative sample test helps resolve material-specific questions before quotation.
- Product name and form (powder, granule, liquid, paste or solid pieces), with a sample or photos
- Target fill weight or volume, or the item count per pack
- Pack type and dimensions, and the packaging material you use
- Target output per minute or per shift
- Site utilities: voltage, phase and frequency, and compressed air
- Any upstream or downstream equipment the machine must connect to
What to send us
Send what you have and mark what is still undecided. Discuss your application with LINEVO.
| Item | Why we need it | Example format |
|---|---|---|
| Product and its behavior | Powder, granule, liquid, paste or solid pieces decide the dosing method and the parts that touch the product. | Free-flowing granules, with a photo of the product |
| Finished pack and fill | The pack style, its size and the fill per pack set the format and the dosing range. | Pillow bag, 100 × 150 mm, 50 g per bag |
| Target output | Output per minute or per shift decides the number of lanes and the model size. | 60 good packs per minute, one shift per day |
| Packaging material | Film or container type affects sealing, forming and the settings we confirm. | Laminated roll film, 250 mm wide, or the film datasheet |
| Site and destination | Power supply, compressed air and destination country decide the electrical and utility scope. | 380 V, 3-phase, 50 Hz, delivery to Germany |