Machine route
Linear weigh fillers
For free-flowing granules, seeds, beans, rice, pellets and small components.
View route →Buyer route
Weigh filler accuracy and tolerance planning.
Use target weight, acceptable tolerance and product behaviour to compare the right filling route.
Application planning
Weigh filler accuracy and tolerance planning. starts with the product behaviour, target fill weight, pack format and the output you need from the line.
This page is written for UK manufacturers, contract packers and production teams comparing practical dry-product filling routes before requesting advice. The aim is to narrow the shortlist before you invest time in a quotation.
Typical products include buyers who need consistent fill weights and want to reduce product giveaway. The final route depends on sample behaviour, pack handling, tolerance and how much operator involvement is acceptable.
Key planning points
- Accuracy depends on the product, dosing method and target weight.
- Very low weights often need more careful feeder control.
- Irregular products may need combination weighing to reduce giveaway.
- Checkweighing can verify finished packs downstream of the filler.
Routes to compare
Machine options worth checking.
Most dry-product projects are narrowed down by comparing these four routes against the product and pack.
Machine route
Multihead weighers
For higher-speed portioning of snacks, pet food, mixed products and irregular pieces.
View route →
Machine route
Auger fillers
For powders, fine ingredients, dry blends, spices, additives and controlled screw dosing.
View route →
Machine route
VFFS weigh filling lines
For automatic bagging lines that form, fill and seal from roll film.
View route →| Decision | Why it matters | Useful detail to send |
|---|---|---|
| Product behaviour | Flow, dust, fragility, bulk density and particle size decide whether weighing or auger dosing is more practical. | Product name, sample details, dust level and whether it bridges or sticks. |
| Pack format | Pouches, bags, jars, tubs and boxes need different presentation, discharge height and finishing equipment. | Pack dimensions, opening size, closure or seal method. |
| Output target | The required packs per minute determines automation level, product feed and downstream integration. | Current speed, desired speed and target operator involvement. |
FAQ
Weigh filler accuracy and tolerance planning. questions.
Short answers for buyers comparing filling routes before requesting a machine recommendation.
What affects weigh filler accuracy?
Product flow, bulk density, target weight, feeder control and pack handling all affect accuracy.
Does a checkweigher replace a filler?
No. A checkweigher verifies filled packs; the filler still controls dosing.
How can giveaway be reduced?
The route can be improved by choosing the correct dosing method, controlling product flow and using suitable feedback or checking.
Send the product, target weight, pack format and output target.
That gives Lancing enough information to compare a linear weigher, multihead weigher, auger filler or integrated bagging line.