Leading Manufacturer of Intelligent Food Packaging Machinery
How long does it take to change a coffee packaging machine from 250 g to 1 kg bags?
Bag length is a recipe on the HMI, so 1 to 2 minutes. Bag width is hardware. On a VFFS a width change means a new forming tube and a matching set of sealing jaws: 30 to 90 minutes depending on how the jaws are mounted. On a premade pouch machine the magazine and recipe change instead: 15 to 30 minutes.
That single distinction explains why most roasteries standardise one bag width and vary the fill weight.
The 250 g to 1 kg case, step by step
| Step | VFFS (roll film) | Premade pouch |
|---|---|---|
| Change bag length on the HMI | 1 to 2 min | 1 to 2 min |
| Change bag width | Forming tube swap: 30 to 90 min | Magazine and recipe: 15 to 30 min |
| Change dosing for 1 kg | Weigher or auger setting: 15 to 40 min | Same |
| Re-tune seals for the new film or pouch | 10 to 20 min with a seal test | 10 to 20 min |
| First-off check and restart | 10 min | 10 min |
| Realistic total | 1.5 to 3 hours | 45 to 90 minutes |
What makes the difference inside that range
The number to write into your plan: a full 250 g to 1 kg change with dosing and seal verification is 1.5 to 3 hours on a VFFS and 45 to 90 minutes on a premade pouch machine. If you change twice a day, that is 750 to 1,500 hours a year on the VFFS route before any other downtime.
Why a 250 g and a 1 kg bag rarely share a width
Film consumption per bag follows the film width, which is twice the finished bag width plus the back seal allowance. A 250 g bag at 100 mm wide consumes a 220 mm film web; a 1 kg bag at 160 mm wide consumes 340 mm. The gap is not a length adjustment, it is a different web, so the retailer-facing proportion of the bag changes as well.
The arithmetic is worked through in film consumption and changeover time compared, and the cost side sits in the 2026 coffee packaging machine cost guide.
Review changeover-ready coffee machines
