Quick answer
Compare auger and weigh filling for cohesive powders, free-flowing granules, bulk-density change, dust, accuracy and speed. The correct choice is the route that meets the written requirement with representative evidence and the lowest acceptable installed lifecycle risk.
Side-by-side comparison
| Decision factor | Auger filling | Weigh filling |
|---|---|---|
| Measurement | Controlled auger revolutions or time | Direct mass measurement |
| Best suited | Fine, cohesive or non-free-flowing powders | Free-flowing powders, granules and larger target weights |
| Density sensitivity | Dose mass changes when bulk density changes | Compensates by measuring mass, although feed behaviour still matters |
| Dust | Can control product path and low-drop filling | Feeding and discharge can still release dust |
| Speed | Strong for repeatable small/medium doses when product is conditioned | Depends on target, feeder control and settling time |
| Cleaning | Auger, tube and hopper must be accessible | Hoppers, feeders and weigh buckets must be accessible |
Checks before selecting the route
- Classify flow, aeration and bridging.
- Measure bulk-density variation.
- Define target weight and tolerance.
- Test dust, settling and refill behaviour.
- Compare repeatability across a full hopper cycle.
Use a common acceptance test
Ask each route to demonstrate the same product, pack range, sustained output, quality limit, changeover and recovery from normal stops. Record exclusions and site work so apparently lower prices are not compared with incomplete scope.
Auger Fillers
Auger dosing for fine, dusty and non-free-flowing powders.
