A 3D bioprocessing bag (also called a pillow bag or cubic bag) is a large-volume, three-dimensional single-use container used in pharmaceutical and biotech manufacturing for the storage, transport, and mixing of buffers, cell culture media, and bulk drug substances. Unlike flat 2D bags, 3D bags stand upright and can hold volumes from 10 L to 3,000 L.<\/p>\n
2D bags are flat, flexible pouches suitable for volumes up to approximately 50 L, primarily used for media storage, freeze-thaw applications, and downstream processing. 3D bags are designed for larger volumes and can be integrated into mixing systems with impellers or rocking platforms. The choice depends on volume requirements, mixing needs, and facility design.<\/p>\n
3D bioprocessing bags are used for buffer preparation and storage, large-volume media preparation, bulk drug substance hold and transfer, and as liners in stainless steel tanks to enable single-use operation.<\/p>\n
High-quality 3D bags are manufactured from multilayer polyethylene films compliant with USP Class VI and EU GMP requirements, with ports and connectors validated for aseptic connections.<\/p>\n