How to Spec Custom Air Column Bags for Bottle and Electronics Kits

Quick answer

Specify custom air column bags by product geometry, column width, film structure, inflation method, and the drop or vibration case—not by a photo of an inflated bag. A bag that fits loosely can still fail if columns collapse or shift in transit.

Map the product and kit

Give exact outer dimensions, fragile faces, accessories, and whether the bag must hold one unit or a multi-part kit. Bottle necks, charger bricks, and sharp corners need different column layouts.

Lock column geometry

State column width, bag outline, seal pattern, and opening style. Narrow columns can improve shape retention; wider columns may pack faster but leave voids around small parts.

Define film and inflation

Specify film grade or micron range, heat-seal strength expectations, and whether packing uses a dedicated inflator, hand pump, or in-line system. Confirm max fill pressure and leak-check method.

Validate the full pack

Test the inflated bag with the real product inside the outbound carton. Check abrasion on glossy housings, valve reliability after compression, and whether columns remain inflated after a realistic dwell time.

Control commercial packing

Ask how empty bags are packed, minimum order by size, reprint/tooling for custom outlines, and lead time after sample freeze. Custom dies or sealing jigs should be listed separately from unit price.

RFQ

Product CAD/photos; kit contents; fragile faces

Column width; bag outline; opening and seal style

Film grade; inflation method; leak and drop targets

Sample stages; MOQ; empty-bag packing; Incoterms

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