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DOC: P11TYPE: SUPPORTUPDATED: 2026-11-14VERIFIED: Pita Bread Packaging Machine Bakery Review

Inverted Bottom-Reel Servo Flow Wrappers: Zero-Slide Tall Stack Wrapping

Carry unstable 5–12 count pita stacks (up to 110 mm high) directly on unwinding BOPP/PE film from a bottom reel—preventing loaf slippage, tearing, and flour jams.

Why Inverted Bottom-Reel Unwinding Is Essential for Unboxed Pita Stacks

On a conventional top-reel flow wrapper, a loose stack of 6 soft pitas must slide across a stationary stainless infeed plate pushed from behind by a narrow finger lug—causing the bottom pita to drag, fold under, or shed semolina flour into chain slots. Inside flatbread flow wrapping machines, inverted bottom-reel flow wrappers (450X / 600X / TL-FP-280X class) unwind packaging film underneath the product first, carrying the entire stack forward like a moving conveyor carpet!

Longitudinal fin-sealing happens cleanly across the top of the package (away from bottom loaf weight), while wide end-sealing jaws clear stacks up to 110 mm high.

Six-stage pita and flatbread line from spiral cooling below 32 °C through optical count-stacking, MAP wrapping, and basket loading
Packing pita warmer than 34 °C traps condensation droplets on inner film walls, triggering surface mold within 72 hours.

Bottom-Reel Tall-Stack Wrapper Technical Specs

Comparison of 450, 600, and 680 wide-web inverted bakery wrappers:

Specification 450D Inverted Bakery TL-FP-280X / 600D Tall 680D Wide Khobz / Tortilla
Max Film Roll Width 450 mm 600 mm 680 – 750 mm
Loaf Diameter / Bag Width 60 – 175 mm 70 – 230 mm 120 – 300 mm
Max Stack Height Up to 80 mm Up to 110 mm Up to 100 mm
Speed Envelope 30 – 160 stacks/min 35 – 140 stacks/min 25 – 110 stacks/min
Fin-Seal Position Top fin (folding over) Top fin + side gusset tucker Top fin + hold-down belt

Need 21–45 day mold-free ambient shelf life? Add box-motion jaws + CO2/N2 in box-motion MAP flow wrappers.

Shelf-life, max stack height, reclosure, and film cost comparison across BOPP flow wrap, MAP barrier HFFS, and wicketed LDPE bags
BOPP rollstock holds moisture 4–6× tighter than LDPE (WVTR 3.9–6.2 vs 16–23 g/m²/24hr) at roughly half the per-pack film cost.

Flatbread & Bakery Engineering Notes

  • Belt-to-Film Zero-Drop Transfer: A knife-edge polyurethane nosebar deposits cooled pita stacks directly onto the moving film web just 12 mm below—zero free-fall, zero stack toppling.
  • Top Fin-Seal Keeps Heat Off Bottom Crust: Because heated longitudinal fin-seal wheels pull film upward above the stack, delicate pita pockets never rest directly against hot sealing metal.
  • Smart Gap-Belt Synchronization: Three cascaded servo smart-belts space irregularly arriving stacks from upstream count-stackers into exact film pitches without mechanical push lugs.

Verify Stack Stability on Your Tallest Pack

Send loaf diameter, count, and stack height (mm) via Project Brief.

Speed comparison across wicketed poly baggers, box-motion MAP flow wrappers, 110 mm tall-stack wrappers, and 230–300 PPM lines
Count-stacking 6 pitas per bag means a 600 loaves/min tunnel oven requires a 100 stacks/min wrapper—plus 20% V-curve surge.

Explore related bakery equipment in Pita Packaging Machines, MAP & Bakery Film Specs, or send your loaf diameter & stack height via Project Brief.

Related Specifications

Further Reference

Verify Dimensions & Operating Ratings

Send your target envelope, load requirements, and ambient environment to review matching configurations.

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