How do I change a machine between sizes of pillow bag?
Control magazine or film path, pickup points, opening, fill height, sealing tools, code position and recipes from a format sheet. Use first-off seal and dose checks before normal production.
What should I check first?
Record the machine state and the finished result before changing settings. This helps identify where control is first being lost.
- Inspect stored and machine-fed pillow bag for a simple roll-film pack with a back seal and end seals.
- Observe every stage of vertical form-fill-seal bagging.
- Check pickup, opening, fill, settling and seal timing separately.
- Verify pouch or rollstock dimensions, structure, seal layer and production tolerances.
- Observe pickup, opening, filling and sealing as separate stages.
- Run the lightest, dustiest, most static or most irregular product.
Why is this production problem happening?
Work from the evidence and change one variable at a time. These are the most relevant causes to investigate first.
- Pack material condition or tolerance prevents repeatable handling.
- The product discharge contaminates or deforms the seal area.
- One retry or reject state is not correctly sequenced.
- Flexible material quality or storage condition is inconsistent.
- The dosing discharge is not coordinated with pack opening and settling.
- Film or pouch handling geometry is incorrect for the format.
How can I correct or improve it?
Make a controlled change, repeat the same measurement and compare the result before moving to the next adjustment.
- Trial full production rolls or pouch batches.
- Add confirmation sensing at the process step that can fail.
- Set measurable dose, seal and output acceptance criteria.
- Control pouch or film specifications and storage.
- Reduce uncontrolled product fall and protect the seal area.
- Tune handling first, then dosing, then sealing.
What should I send Lancing?
The most reliable recommendation is based on representative production materials and a measurable acceptance result.
- At least two normal batches of pillow bag materials
- Product sample and dose range
- Seal specification and acceptance method
- Artwork and code position
- Required good output
- Production pouches or rollstock and technical specification
- Product sample and flow, dust or stringing behaviour
Which applications does this answer cover?
More quick answers about this problem
What should I check first for pillow bag?+
Inspect stored and machine-fed pillow bag for a simple roll-film pack with a back seal and end seals.
Why does this problem happen with pillow bag?+
Pack material condition or tolerance prevents repeatable handling.
How can I improve or correct the problem with pillow bag?+
Trial full production rolls or pouch batches.
Which part of the production line does this question relate to?+
This question relates primarily to pouches, sachets & form-fill-seal. It may also be affected by upstream product or pack supply and by downstream handling, so check the full production sequence rather than one machine in isolation.
What should I send when asking for a machinery recommendation?+
Send At least two normal batches of pillow bag materials; Product sample and dose range; Seal specification and acceptance method; Artwork and code position. Representative production samples and a measurable acceptance target are normally more useful than a catalogue description alone.
Explore the relevant Lancing machinery options
Review suitable equipment and application guidance, then request a recommendation based on your product, pack and required accepted output.
formfillandseal.co.uk