The cycle in four steps
Film unwinds from a reel, wraps around a vertical fill tube at the forming collar, and is joined along the back. The cross-seal jaws close the bottom, the product falls through the tube, and the next closure seals the top and cuts the bag. Each assembly fixes something you will notice later: film tension decides bag length consistency, the jaws decide seal strength, and the dosing head decides weight accuracy.
Choose the filler first
| Product | Filler | Our machine | Bag or range | Speed |
|---|---|---|---|---|
| Fine powder: coffee, milk powder | Servo auger, dust hood, nitrogen | Servo auger powder VFFS | about 50–1,000 g | 15–70/min |
| Heavy powder, larger bags | Auger | VFFS 420 auger packer | 500–5,000 g | about 5–25/min |
| Sugar, nuts, seeds | Volumetric cup | Vertical pouch machine | about 10–500 g | 20–100/min |
| Chips and fragile snacks | Multihead combination weigher | Snack weighing and bagging machine | up to 10 kg | up to 80/min |
| Cheese shreds, sticky granules | Weigher with non-stick finish | Granule pouch machine | up to 10 kg | up to 80/min |
| Single-serve powder, paste, liquid | Auger, cup or pump | Stick-pack vertical machine | 1–15 g or ml | about 60/min |
Fill accuracy follows the same order. Cups are simple and quick to change but vary with bulk density, so expect about 1–2 percent. Augers hold about 0.5–1 percent when the powder flows evenly. Weighers cost more but protect you from giving away product on a 50–100 g snack bag.
Bag style and film
Pillow bags are the cheapest and fastest. Gusseted bags stand better on a shelf and need extra forming parts. Stand-up pouches usually come from premade-pouch machines, though some of our granule models list them too. Film comes as a laminate such as OPP over CPP, or metallized film for chips; its width sets the widest bag, which for our range runs from 120–320 mm on the basic bagger to about 420 mm on the powder machines. A reel change is quick, but a bag-width change means a new forming collar, so decide your pack sizes early.
Dust, humidity and shelf life
Powder drifts around the filler and onto the seal area, which makes leaky seams. That is why our powder machines carry an extraction hood at the fill point. In humid climates powders cake and film curls, so plan a dry packing room. For products that go stale, nitrogen flushing is listed on the coffee, milk powder and snack machines.
VFFS, sachet filler or flow wrapper?
Choose a VFFS bagger when the product pours or tumbles. If it is a thick liquid or paste in a small pack, use a sachet and pouch filler. If it is a solid piece that must lie flat, such as a bar or biscuit, use a flow wrapper; a bagger would crush or jumble it.
Supply and footprint
Most machines here run on 220 V; the stick-pack unit is 220 V, 50 Hz, three phase. Taller machines such as the servo auger model reach 2,700 mm, so check ceiling height. Compressed air of about 0.6–0.7 MPa applies to the pneumatic parts.
What to send for a quote
- Product, bulk density and whether it is dusty, oily or sticky
- Bag style (pillow, gusset, stand-up) and size
- Fill weight and target bags per minute
- Film structure and reel width
- Voltage, frequency and need for nitrogen or a date coder