Why LAMBDA replaced the traditional rotational stirring with a unique and efficient agitation?

Almost all laboratory fermenters-bioreactors use circular rotation to agitate the culture medium. The rotational stirring has its own disadvantages.

Major problems with rotational stirring

  • Induces hydrodynamic shear stress - Destructive effect on culture growth
  • Unreliable seals to close the moving motor axis and immobile vessel - High risk of contamination
  • Vortex controlling baffles complicate the setup and cleaning process - Increased handling complexity, downtime, foaming and complex internal environment
  • Air flooding - Inefficient gas and mass transfer in the media

LAMBDA has found a very simple, innovative solution for the conventional mixing problems.

Advantages of LAMBDA’s non-rotational agitation

Quality sealing allows to maintain sterility easily for long continuous runs
  • Effective & economical sealing
  • Low cost
Saves money, simplifies the setting up process and reduces cleaning time
  • No complex head-plates and baffles
  • Easy to handle
Increased cell viability with optimal bio-mimicking “fish-tail” agitation
  • High productivity and minimal down time
  • Maintain sterility for months

Efficient mixing for all types of culture: bacterial, mammalian and fungal cells.

Cells are not destroyed due to shear stress.

Optimal oxygen transfer (OTR) without air flooding.