FUNDAMIX® Vibromixer
Where Liquids are Shaken, Not Stirred
FUNDAMIX® Vibromixer
The FUNDAMIX® is a universal device for mixing liquids in open or closed vessels, under vacuum or pressure, even in sterile conditions.
It was invented and patented in the late 1960s by Dr. Hans Mueller and subsequently manufactured by Chemap AG under his ownership. The vibratory mixer product line was sold to Graber & Pfenningger GmbH in 1983 and was reacquired by DrM, Dr. Mueller AG in 2012 and renamed FUNDAMIX®.
The electro-magnetic drive operates at 50 to 60 Hz and transmits the vibration via the mixing device or mixing plate attached to a special clamp coupling into the medium.
The amplitude resp. mixing effect is controlled by an electronic system and can be adjusted from 0 to 4 mm. The flow direction can be adapted to suit the medium and required mixing effect. The mixing direction depends on the orientation of the conical holes.
Standard mixers are in 316 stainless steel, but can be manufactured from a wide range of materials including Hastelloy, Titanium and various plastics.
FUNDAMIX® can operate continuously without overheating or amplitude variations.
How it works
Principle of Operation
The mixing effect is produced by vibration transmitted to a perforated stirrer plate equipped with conical bores. Due to the Bernoulli effect, this vibration causes the liquid to be pumped upward or downward through the cones.
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2
3
1
Stirrer Plate Type A
The conical bores point upward and the liquid jet flows vertically up to the surface. It is used in several applications such as agitation, emulsification and homogenization, with varying liquid levels. If two liquid phases with different specific weights have to be emulsified, the stirrer plate must always be immersed into the liquid phase with the higher specific weight. The optional distance from the stirrer plate to the bottom of the vessel varies between 20 and 150mm.
2
Stirrer Plate Type B
The conical bores point downward. Therefore the liquid jet flows towards the vessel bottom. This type of stirrer plate is used for suspending solids in liquids and when no air or gas from the liquid surface should enter into the liquid.
3
Stirrer Plate Type B With Gas Dispersion
The stirrer shaft is hollow and allows gas to get injected below the stirrer plate. Due to the liquid flow, an optimal gas dispersion effect is reached. This type of stirrer plate is used to saturate liquids with O2 or in any other gas/liquid reactions.
Features
- No vortex
- No friction
- No rotary mechanical seal
- Simple installation
- Long service life
- Effective & efficient mixing
- Low shear force
Advantages
- No baffles required
- No lubricant required
- No problem for sterilization
- Low installation and maintenance cost
- Low energy consumption
- No overheating of liquid
- No damage to life cells
Application Criteria
- Low viscosity liquids (max. 500 mPas or cP)
- Top mounting only (no bottom or side mounting)
- Rounded tank bottom (flat bottom geometrics are not conducive to optimal mixing results)
Specifications
Limitations
Usable for low viscose products (max. 500 mPas)
• Fitting from bottom or sidewise not possible
• Flat bottom geometrics unfavourable
Typical FUNDAMIX® Applications:
Pharmaceutical and Cosmetic industry
Insulin production; blood fractionations; preparation of sterile solutions; mixing of injectable suspensions in sterile vessels for ampoule filling; vaccine/oil emulsions
Food and Beverage industry
Mixing of soft drinks; addition of flavours, salt, sugar, vitamins and colours; blending alcoholic beverages; agitation of milk
Chemical industry
Mixing of photographic developer; suspending of solids such as filter aids in liquids; precipitation of solids during neutralization; gas/ liquid batch reactions like hydrogenations and chlorinations; agitation under vacuum or pressure
Microbiological and Biochemical industry
Anaerobic fermentations; submerse culture of mammalian and plant cells; protein solutions.
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POLAND
DrM Polska Sp. z o.o.
ul. Toruńska 248a
87-805
Wloclawek
Poland
Tel: +48 54 237 2921
Fax: +48 54 237 2931
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