Fragile, sticky and oily products may be suitable for multihead weighing only when the feed method, contact surfaces, hopper geometry, drop path and cleaning plan match the real product. Dimpled or coated surfaces can help some products release, while low-impact feeding and reduced transfer energy may help fragile pieces. Suitability must be proved by trial.
It can be possible, but the product path must be designed and trialled around the difficult behaviour. Fragile products need controlled movement and impact; sticky or oily products need reliable release and practical cleaning. The same surface or setting will not suit every product, so the normal production condition must be included in the test.
| Product behaviour | Design or trial focus | Acceptance evidence |
|---|---|---|
| Fragile or brittle | Vibration, transfer points, drop height, chute path, pack impact | Before-and-after samples, crumbs, breakage and coating loss |
| Sticky or tacky | Contact area, surface finish, gate release, build-up and dwell time | Retained product, release consistency and cleaning observation |
| Oily or seasoned | Changing friction, residue, contamination and product temperature | Performance at normal condition and after sustained running |
| Mixed size or shape | Segregation, bridging, large-piece clearance and fines | Mix quality, portion stability and finished-pack inspection |
Yes, where the complete product path keeps damage within the agreed acceptance limit. The review should cover bulk feed, tray vibration, hopper gates, collection chute, timing hopper and the receiving pack. The trial must use normal product and should classify damage rather than relying only on a visual impression of the machine running.
Damage may be reduced by controlling feed energy, avoiding unnecessary drops, managing transfer angles and matching the receiving pack or chute to the product. Lower impact can affect output or product distribution, so the final setting must balance handling quality with stable portion formation. The agreed limit should be tested over a sustained run.
Dimpled surfaces are commonly considered where reducing the contact area may help a product release rather than cling to a flat surface. They are an application option, not a universal improvement. The dimple pattern, product condition and cleaning method should be tested because some products may mark, trap or move differently on a textured surface.
No. Some sticky products benefit from dimpled, coated or otherwise specialised surfaces, while others need a different feed method, angle or hopper geometry. A surface that improves release may affect cleaning, fines or fragile pieces. Compare the result with the real product rather than selecting a finish from the product name alone.
Temperature can change oil, moisture, sugar and product flexibility, which changes friction and adhesion. A cold sample may release cleanly while production product clings after warming, or the reverse may occur. The trial should reproduce normal storage and processing conditions and should include a long enough run to reveal build-up.
Agree the damage categories before the trial and compare representative samples before and after weighing. Depending on the product, evidence may include broken pieces, crumbs, coating loss, dust, deformation or rejected finished packs. Record where damage occurs so the feed, weighing and downstream transfer stages are not confused.
A different feed method may be required when vibration cannot produce controlled portions or when adhesion, entanglement, moisture or fragility prevents clean transfer. Belt, screw or other application-specific feeding may be considered depending on the product and machine range. The alternative should be assessed as part of the complete line, not as an isolated accessory.
Send normal and difficult samples, target weights, pack details and the proposed cleaning requirement.
Discuss a difficult-product trial