Our 4SL range of bags with side gussets are manufactured in barrier materials that are resistant to gas, steam and/or UV light. They can be used as a liner for a rigid container (bucket, drum or box), or can be loaded directly onto pallets (with or without separator sheets).


  • The side gussets open out to fit perfectly into the dimensions of the container (custom designed to your needs).
  • This format is ideal for packaging large volumes of materials.
  • It offers both rigidity and stability when filling the bags.
  • They can be packed directly onto pallets without having to be boxed first.
  • Thanks to the corner seals of the gussets, nothing can remain trapped in the bottom.
  • They offer good protection while enabling vacuum or gas flush packing according to the material.

Volume : from 20L to 200L

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BERNHARDT’s 4SL bags with side gussets are designed with four lengthwise seals. So, it gives them high rigidity and excellent stability. Moreover, we particularly recommend them for large volumes. They also come in laminated or co-extruded films, with EVOH or aluminium barrier film.
The films with 4 or more layers include a polyamide layer. This gives the bags extra strength for vacuum packing.

BERNHARDT can guide you in the choice of material and type of barrier film most suited to your packaging needs.


  • Food-processing products: flavourings, additives, seeds, base products.
  • Pharmaceutical products: active principles, vitamins, capsules, injection blow moulded plastic parts, caps.
  • Chemicals: colourants, phytosanitary products, metal powder, polyamide granules, special cements.


  • Easy to open (tear notch).
  • Vacuum packing.

Our associated solutions :

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