Bottom Mounted Agitator Fermenter 

In fermentation, standard dimensioning provides a safety baseline, but it rarely achieves peak efficiency. We take the engineering further.

By fine-tuning the complete range of agitator parameters—from geometry to positioning—we align the equipment perfectly with your specific process dynamics. 

• The Value : This subtle optimization yields superior performance on what matters most: your biological yield. It often allows us to achieve these results with a leaner, more efficient drive configuration, reducing your energy footprint and capital expenditure without compromising process capability
  

Fermentation involves long shafts operating in demanding, high-turbulence environments. In these high-aspect-ratio vessels, stability is the prerequisite for performance.

• The Liquitec Standard : We ensure operational smoothness through calculation, not estimation. For every BMAF, we model the critical speed thresholds relative to the shaft dimensions and bearing reinforcement.
• The Result : Uncompromising rotational stability. We deliver energy to the fluid, ensuring that the mechanical seal and tank floor are protected from vibration, even during aggressive agitation.  
  

The interface between the shaft and the impeller is critical for both sterility and mechanics. We offer two definitive solutions based on your operational philosophy.

• The Permanent Solution (N5 - Welded Hub) : The impeller is fully welded to the shaft2. This creates a single, continuous stainless steel unit with zero crevices, offering the ultimate hygienic standard for dedicated GMP processes.
• The Flexible Precision (N2 - Sealed Slide Hub) : A precision-engineered peel-on connection sealed with O-rings. This design utilizes a tight tolerance fit for mechanical rigidity while ensuring a verified sterile boundary. It offers the ideal balance: the flexibility to reconfigure impellers on demand without compromising hygienic integrity.
  

In aerobic processes, gas introduction changes the fluid density, creating resistance that challenges standard magnetic couplings.

• The Calculated Solution : We address this physics challenge with precision. By calculating the exact torque curve required for your maximum aeration rates, the BMAF delivers uninterruptible torque transmission. We ensure that your mass transfer KLa is limited only by your biology, never by the capability of the drive train.