Gentle agitation for shear-sensitive culture

Rocker bags are designed for use on rocking (wave-style) bioreactor platforms, where the bag is mounted on a tilting platform that creates a wave motion within the bag. This provides mixing and gas exchange without the mechanical impeller agitation used in stirred-tank systems, making it particularly suitable for shear-sensitive cell lines.

The gentler mixing profile of rocking platforms is frequently preferred for microcarrier-based adherent cell culture, where excessive shear can damage cells attached to carrier beads, as well as for certain primary and stem cell culture protocols where mechanical stress affects viability.

For applications requiring higher oxygen transfer at larger scale, our standard 3D-Bioprozessbeutel on orbital platforms may be the more suitable format — see our Leitfaden zur Auswahl zwischen 2D und 3D for a broader comparison.