Granule Packing Machine Sample Data Checklist

A granule may look straightforward in a catalogue, yet the same machine route can behave differently with rice, beans, nuts, snack pieces, seeds, pellets or coated particles. Shape, size spread, breakage, oil, dust, static charge and the target bag can all affect feeding, weighing, forming, sealing and inspection. This checklist helps a buyer prepare a useful granule-packing enquiry and a representative sample test. It does not claim that a machine will accept every granule without reviewing the actual product and packaging material.

1. Define the product that will actually be packed

Record the commercial product name, internal code, grade, lot and date of the sample. State whether it is the intended production material, a development sample or a substitute. Describe the principal particle shape: round, irregular, flat, elongated, fragile, sticky, coated or mixed. If several components are blended, list the approximate component range and explain whether separation during handling is a concern.

Provide the normal particle-size range, maximum particle and fine fraction. Include the method used to obtain the values. An average size alone can conceal large pieces that do not pass a chute, or fines that enter a seal area. State whether the product changes with season, supplier lot, temperature or storage time.

2. Record flow, damage and contamination concerns

Describe how the product moves from a container or hopper: free flowing, bridging, rolling, bouncing, clinging or producing dust. Note coatings such as oil, sugar, seasoning or powder. State whether broken pieces, scratches, product loss or cross-contamination are quality concerns. These are procurement inputs; they should not be converted into an assumed feeder, weigher or conveyor configuration before a test.

Record the storage condition before sampling, including open-bag time, humidity, temperature and transport history where relevant. A dry sample handled in a laboratory may not behave like a product transferred from a production bin. If cleaning or allergen separation matters, identify the product-contact boundaries and the buyer’s required cleaning evidence.

3. Freeze the bag and filling target

For each launch format, provide the nominal fill mass, permitted tolerance, bag type, finished dimensions, gusset, film structure, sealant and print position. State whether the bag is a pillow bag, gusset bag, premade pouch or another format. Identify the difficult format rather than only the easiest one. A result from one bag width or fill mass should not be presented as proof for all future sizes.

Describe the intended appearance and package-handling criteria: headspace, product breakage, seal cleanliness, label or code position, standing ability, case packing and transport orientation. Confirm the check used to accept a package, such as recorded mass, visual condition, seal inspection or another buyer-approved method.

4. State the required line boundary

Map the route from bulk product to accepted bag. Mark product supply, feeding, weighing or dosing, bag forming or pouch presentation, sealing, coding, inspection, accumulation and removal. Identify any equipment supplied by another party. A system should not be called an integrated line simply because individual machines are listed in the same enquiry.

For each handoff, record height, direction, usable width, control signal and who will verify the interface. Include the normal operator position, replenishment route, rejected-product route and access needed for cleaning or format changes. The utility and interface checklist can be used when the project contains several connected stations.

5. Plan a representative sample run

Agree the sample quantity before shipping. It should cover priming, adjustments, measured production-equivalent runs, normal replenishment, rejects and retained samples. Send a clearly labelled lot and state whether it represents the production material. If lot variation is a purchasing concern, include more than one controlled lot rather than asking the supplier to infer variation from a single bag.

During the run, record the product condition, package revision, settings that the parties agree to observe, accepted and rejected counts, interruption events and defect reasons. Observe fill consistency, breakage, product trapped in the seal, bag presentation, sealing appearance and operator intervention. Do not describe an unmeasured short demonstration as an acceptance test.

6. Separate measured findings from open questions

Use four labels in the test record: supplied by buyer, observed in trial, proposed for quotation and open for confirmation. Keep the actual sample, package and operating conditions beside each conclusion. This distinction protects both sides when the product, film, target weight or upstream supply changes after the first discussion.

Where a larger system is being considered, connect the record to the compact packaging-line RFQ checklist. For a pouch route, also review the pouch film and seal sample-test checklist. These guides organize questions; they do not replace a project-specific technical review.

7. Prepare a comparable quotation request

Ask each supplier to identify the product and package assumptions used, the stations included, the sample-test boundary, the inspection points and the items excluded from scope. Keep optional equipment separate from the base scope. If the buyer needs a measured output target, define the exact material, fill mass, package and accepted-package conditions before comparing offers.

Send the granule sample data and package drawing to MUJIU for a configuration discussion. Unknown values are useful when marked honestly: they define what should be checked before a route is treated as suitable.

Minimum granule-packing enquiry package

• Product identity, lot, condition, particle-size range and fine fraction.
• Flow, coating, dust, breakage and cleaning observations.
• Target fill mass, tolerance, bag drawing and film specification.
• Required process stations and third-party interfaces.
• Sample quantity, test conditions and accepted-package checks.
• Open-item register identifying what remains to be confirmed.