Exact Rollstock Web Formulas for Pillow & Gusset Candy Bags
Ordering printed candy film 5 mm too narrow leaves vertical fin seams unsealed; ordering film wider than your VFFS frame forces an expensive machine upgrade. Built under candy machine selection and sizing and candy weighing and dosing specs, use these two standard formulas before approving artwork cylinders.
For a standard pillow back-fin bag: Flat Film Web (mm) = (2 × Bag Flat Width) + (2 × Fin Seal Width, typically 12–15 mm). For a side-gusseted bag: Flat Film Web (mm) = (2 × Front Face Width) + (2 × Full Gusset Depth) + (2 × Fin Seal Width).
Candy Bag Width to VFFS Frame Reference Table
Assuming a standard 15 mm back-fin seal (30 mm total seal allowance):
| Finished Bag Style & Width | Gusset Depth | Calculated Flat Film Web | Compatible VFFS Frame | Typical Candy Weight |
|---|---|---|---|---|
| 80 mm Peg Pillow Bag | None | 190 mm web | 320 / 420 / 520 VFFS | 30–60 g snacks/candies |
| 120 mm Retail Pillow Bag | None | 270 mm web | 320 / 420 / 520 VFFS | 100–200 g gummies/drops |
| 150 mm Family Pillow Bag | None | 330 mm web | 420 / 520 VFFS | 250–400 g assortments |
| 140 mm Side-Gusset Bag | 40 mm (2×40) | 390 mm web | 420 / 520 VFFS | 300–500 g stand-up candy |
| 240 mm Bulk Pillow Bag | None | 510 mm web | JT-520W (520 mm max) | 1.0–2.5 kg bulk bag |
Explore matching vertical bagger specs in VFFS candy bagging machines.
Confectionery Engineering Details
- One Collar per Flat Web Width: Changing bag length is an instant HMI touch-screen entry (e.g., 100–350 mm), whereas changing bag width requires swapping the forming collar (~15–20 min).
- Harmonize Widths Across SKUs: Designing your 100 g, 150 g, and 200 g bags around a shared 125 mm width (varying only height) eliminates forming-collar changeovers completely!
- Eye-Mark Track Placement: Reserve a clean 10 × 5 mm high-contrast registration mark lane free of background candy graphics.
Verify Your Dieline Before Engraving Print Cylinders
Send draft film dielines so forming-shoulder overlap and fin/lap seal geometry are confirmed before printing.
Share your bag sizes via our Project Brief.
Compare related confectionery systems in Candy Packaging Machines, Weighing & Dosing Specs, or send your candy specs via Project Brief.