ram resonance acoustic mixer

The RAM® bench top biological mixer utilizes ResonantAcoustic® technology that applies low-frequency, high-intensity acoustic energy to agitate microbial cultures. The RAM® is a highly-efficient orbital-shaker replacement that dramatically enhances oxygenation and bulk mixing for bacterial and fungi cultures. Combined with the patented Oxy-Pump® stopper, oxygen transfer rates up to 6-fold higher than orbital-shaken cultures can be achieved.

The RAM® is an indispensible product for any cutting-edge biological laboratory.


18 x 250ml flasks, or
14 x 500ml flasks, or
8 x 1000ml flasks

102 x 56 x 69 cm (W/D/H)
40 1/8” x 21 3/4” x 27”

Temperature control:
Ambient +5˚C to 60˚C

190 kg (480 lbs)

Humidity control:
Ambient to 90% RH

110/230 VAC, 50/60 Hz
1-20g acceleration (196 m/sec2)


  • Increased oxygen transfer for aerobic cultures
  • Rapid turnover of any desired gas

Improved culture productivity

  • Take advantage of richer media formulations
  • 2-6 fold increase in plateau biomass levels
  • Up to 10-fold increase in product expression
  • Up to 6-fold increase in OTR


  • Accommodates range of flask sizes (250ml -1000ml)
  • Use existing shake flask inventories
  • Autoclavable stopper with replaceable filter

Mixing enhancement

  • Improved mixing
  • Advantages increase with higher viscosity
  • None-invasive mixing requires no stirrer bar or impeller

ram content 2

pdf  Bioreactor based engineering of large-scale cartilage grafts for joint resurfacing - 652.46 KB
pdf  Shaken flasks by resonant acoustic mixing versus orbital mixing - 2.29 MB
pdf  RAM Product Overview - (246.52 Kb)


Our Location


RTD Technology Ltd T/A Asistec
Unit 23, Southern Cross Business Park
Boghall Road, Bray
Co. Wicklow, A98 XC52
Tel:  +353  (0)1 286 8796
Tel:  +353  (0)1 286 8797
Fax: +353  (0)1 286 5380

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