Bottom line: flour is dusty and can bridge—choose reliable feeding and dust control first, then scale speed and automation.
Bag Size Determines the Machine Path
| Bag size | Typical solution |
|---|---|
| Small bags (0.5–5 kg) | VFFS + auger dosing; optional checkweigher |
| Medium bags (5–25 kg) | Open-mouth bagging + weighing + sewing/sealing |
| Heavy bags (25–50 kg+) | Heavy-duty bagging + conveyors + palletizing readiness |
Dust Control and Cleanability
- Enclosed feeding and dust extraction
- Anti-bridge devices
- Easy cleaning access around hopper and sealing area
Seal Method Must Match Bag Material
Paper bags, PE bags, and laminated bags require different closure methods. Confirm your bag spec early.
Quick Checklist
- Bag size + material
- Fill weight and tolerance
- Target throughput
- Dust control requirement
- Destination voltage/frequency
Inputs we need for an accurate quotation
- Product state and behavior (powder flowability, viscosity, particulates, temperature)
- Package format and size range (bag/bottle/jar; material and seal type)
- Fill range and target tolerance (e.g., 100–500 g, ±1–2 g)
- Target output (units/min or hr) and expected runtime per day
- Local utilities (voltage/phase/frequency, compressed air, clean-room/hygiene level)
- Photos or sample pack + label requirements (if any)
Common failure points (what usually goes wrong)
- Filler choice not matching product behavior (bridging, foaming, shear sensitivity)
- Poor dust control contaminating seals (powders)
- Unstable feeding causing speed fluctuations and weight drift
- Bag material/seal spec not compatible with sealing temperature or contamination
- Underestimating footprint and maintenance access space
Factory acceptance test (FAT) checklist
- Run with your product or a confirmed substitute and record output stability
- Check weight accuracy vs tolerance at different speeds
- Verify sealing integrity (leak test / visual inspection) across a full shift simulation
- Confirm safety, emergency stop, guards, and basic alarms
- Capture test video and final configuration list for handover
Frequently Asked Questions
Can one system handle both 1 kg and 25 kg bags?
Usually not on the same machine path. Small bags often use VFFS, while 25 kg commonly uses open-mouth bagging.
How do we keep flour off the seal area?
Use dust extraction and de-dusting near sealing, plus stable feeding to reduce powder spill.
Do you support paper bags?
Yes. Provide the paper bag spec and closure preference (sewing, heat-seal liner, etc.).
What matters most for stable output?
Consistent feeding, dust control, and the correct closure method for your bag material.