FABLE ·
Identify the two surfaces that touch
The aluminum layer may provide barrier properties while another layer forms the bond. Ask the bag supplier for its laminate construction, the inward-facing sealant, the thickness per wall and its recommended sealing window. A shiny outer surface does not tell you whether the inner faces will bond.
Match a jaw to the full opening
FDR is a handheld jaw format with a separate control unit and a listed 15 mm sealing width. The spec sheet lists 200 mm for FDR-200 and 300 mm for FDR-300. Confirm other models and actual usable length before ordering; do not infer length from a model number when the specification is blank. Keep enough clear margin above the product or zipper to seat the jaws.
Approve the seam on the filled pack
Start from the material supplier’s settings and the machine instructions, then compare trial seals. Check the seam after cooling, especially near the sides and at any folds. If the package requires leak resistance, qualify that separately from peel strength. Do not treat a wider-looking band as proof of a tighter seal.
- • Send the exact bag specification and a flat sample
- • Show where the final seal sits relative to any zipper and gusset
- • Record the trial setup, failure mode and repeatability
FABLE models to compare
FDR Series · Handheld Jaw Sealers · Specification sheet (PDF)
FKR Series · Handheld Heat Sealers · Specification sheet (PDF)
Technical references
Machine dimensions and formats refer to FABLE specifications. These references describe testing principles, not certification of any FABLE machine or packaging process.
Related sealing guides
Can a Heat Sealer Close Coated Paper Bags?
Discuss your bag and application
Send the material, seam dimensions, expected quantity and destination power supply so we can review the shortlist with you.