Packaging systems configured around your application Defined project scope
Combination weighing · pouch-line integration
Configure one accepted system for product feeding, combination weighing, discharge timing, pouch filling, sealing and downstream inspection—using the real product and finished pack as the test basis.
Quick answer
The useful purchase is not a fast scale beside an unrelated bagger. Product distribution, hopper choice, discharge timing, bag opening, filling, sealing and inspection must be tested as one line.
This page covers combination-weigher integration for discrete solid and granular products going into flexible pouches. It does not represent a universal filler for powders, liquids, pastes, bottles, trays or bulk sacks. Those applications require a different metering and packaging review.
One controlled chain
A stable combination weight is useful only when the product reaches the weigher consistently and the downstream machine accepts every discharge without contaminating or missing the pouch.
Documented INMAYPACK reference
The values below come from a reviewed HMK420 pouch-line proposal. A new project must reconfirm the product, target weight, weigher, platform, elevator, pouch machine and acceptance method.
Important: the source itself states that actual speed varies by product and actual accuracy varies with product characteristics and target weight. Weigher values do not equal accepted finished-pouch output or finished-pack accuracy.
Product fit
Send samples from the hardest expected condition. A dry, free-flowing sample can hide problems that appear with oil, seasoning, frost, fines, static, broken pieces or an unstable refill process.
When a simpler weighing route is also being quoted, use the multihead weigher vs linear weigher guide to compare product flow, target weight, giveaway, output and FAT evidence on the same basis.
Candy, nuts, beans, cereal pieces and many dry snacks may suit combination weighing when piece size, fragility and target dose are compatible with the selected hoppers and feed system. For kibble, review the complete dry dog food packaging route, including feed, discharge, pouch opening, breakage and final-pack acceptance.
Gummies, seasoned snacks and oil-coated products can bridge or cling. Confirm contact surfaces, feeder motion, hopper discharge, cleaning access and recovery after short stops.
Frost, free water, clumping and temperature change can alter feeding and weighing. Review washdown, drainage, dwell time and the condition used during the acceptance test.
Chips and brittle pieces need controlled drop heights, gentle distribution and a defect definition that records breakage as well as net weight.
A blend is not automatically stable. Define component ratios, segregation limits, presentation to the weigher and how the finished mix will be sampled.
Fine powder, liquid, paste or a product that cannot discharge repeatably may need an auger, cup, piston or rotor-pump route instead of a standard combination weigher.
Packaging route
The same weigher can require different chutes, timing, access and line controls when the downstream machine changes. Quote the complete route, not a disconnected list of components.
Roll film is formed into a stand-up pouch. Coordinate discharge timing with pouch formation, opening, fill access and seal-area control.
Review HFFS systemsFinished pouches are picked, opened and presented before filling. Confirm pouch stiffness, opening success, zip handling and product drop.
Review premade pouch systemsFrozen food, gummies and fragile snacks need different product-contact, transfer and acceptance rules even when the basic weighing principle is similar.
Compare food applicationsSelection variables
| Decision | What to provide | Why it changes the configuration |
|---|---|---|
| Product condition | Photos, samples, temperature, moisture, oil or seasoning, fragility, fines and worst-case batch. | Changes feeding, contact finish, hopper behavior, cleaning and achievable cycle. |
| Target weight | Nominal weight, legal tolerance, giveaway target and sampling rule. | Changes hopper size, combination availability and accepted accuracy. |
| Package | Pouch drawing, material, opening dimensions, zipper, filled shape and physical samples. | Controls chute access, discharge timing, contamination risk and sealing recovery. |
| Output | Good packs per minute or hour, operating period, refill method and allowable rejects. | Determines the slowest required station and buffer strategy. |
| Cleaning | Allergen change, washdown method, chemicals, inspection points and allowed downtime. | Changes surfaces, access, removable parts, drainage and changeover scope. |
| Integration | Upstream delivery, downstream equipment, coding, inspection, reject and line signals. | Defines interfaces, permissives, faults, restart logic and FAT evidence. |
Accepted output
The line result is limited by its slowest proven handoff. Product refill, hopper recovery, missed pouches, seal contamination, rejects and planned checks belong in the same test record.
= the slowest proven rate across product feed, weighing, discharge, pouch handling, filling, sealing and inspection × the agreed acceptance rateControls and interfaces
A complete line needs more than a shared start button. Agree the conditions that allow each station to run, the signals that stop or starve it, and the sequence used to recover without releasing an incomplete or unverified pack.
Define ready, run, hold and stop states between elevator, weigher, pouch machine, coder, inspection and downstream equipment. A missing pouch or unavailable downstream station should have one agreed response.
State which settings belong to the product recipe, who may change them and how the selected pouch program stays aligned with target weight, discharge timing and inspection limits.
Test hopper starvation, product bridging, missed discharge, incomplete pouch opening, seal fault and downstream stop. Record whether product or pouches must be cleared before restart.
Separate weigh cycles, pouch cycles, good packs and rejects. Confirm which counter controls production reporting and how a rejected or missing pouch affects the total.
Define the checkweigher, metal detector or other inspection boundary, including reject confirmation, reject-bin status and the action when the inspection device is unavailable.
If cartoning, case packing or collection will be added, reserve the physical handoff, signal list, accumulation rule and accepted discharge condition before freezing the line layout.
Cleaning and changeover
Product-contact design and cleaning access should follow the actual food, allergen, coating and operating environment. A short nominal changeover time is not useful unless the approved cleaning work and restart checks are included.
Quotation inputs
Piece dimensions, bulk density, surface condition, temperature, fragility, recipe extremes and refill method.
Nominal dose, permitted deviation, giveaway objective, sample frequency and reject logic.
Drawing, material, size range, zipper, opening, target fill level, artwork and physical samples.
Required output, shift pattern, test duration, allowable stops, rejects and downstream condition.
Food-contact requirements, allergen plan, washdown method, access and changeover interval.
Voltage, frequency, compressed air, room height, floor loading, access and environmental limits.
Signals, recipes, permissives, faults, coding, inspection, reject confirmation and data needs.
Samples, video, records, checks, open-item closure, manuals and training requirements.
Factory acceptance
Freeze the product, target weight, pouches, recipe, equipment boundary, staffing, refill method, test duration and defect definitions.
Record weigh performance and finished-pack performance separately. Include stops, refills, damage, rejects, seal checks and restart behavior.
Close deviations, confirm the issued configuration and collect approved records, videos, drawings, manuals, spare-parts scope and handover actions.
Frequently asked questions
Combination weighers are commonly evaluated for discrete solids and granules such as snacks, candy, gummies, nuts, beans, cereal pieces, pet-food kibble and some frozen pieces. Suitability still depends on real product flow, stickiness, fragility, temperature, piece size, target weight and cleaning requirements.
No. The documented 120 value is theoretical weigher speed for one reviewed 14-head reference. Accepted pouch output is limited by product supply, weighing, discharge, pouch handling, filling, sealing, inspection, stops and the agreed acceptance rate.
Use the finished package and operating priorities to decide. HFFS forms the pouch from roll film; a premade-pouch machine handles supplied finished pouches. Compare film or pouch cost, format, zipper and opening requirements, changeover, output and accepted finished-pack evidence.
Possibly, but not by assumption. Hopper surfaces, feeder motion, drop height, discharge path and cleaning may need different configuration. Test the hardest product condition and define acceptable damage before confirming the model.
No. A multihead combination weigher portions product before it enters the package. A checkweigher inspects a finished or filled pack against an acceptance rule. Their results and responsibilities should be recorded separately.
Send product samples and condition, target weight and tolerance, pouch drawings and samples, required good-pack output, refill method, cleaning plan, utilities, line interfaces and the FAT evidence you expect before shipment.
Related decision paths
Project inquiry
Send INMAYPACK the product, target weight, pouch, good-pack output, cleaning boundary and FAT basis. We will review the weigher, feed system, discharge path and pouch machine as one configured project.