Rotary Impulse Apparatus - RIA

Multifuncial rotary type cavitation unit for fine homogenization and producing uniform solid-liquid mixtures, improving heavy fuel oil and oil wastes, etc.


Rotary-Impulse Apparatus (RIA) is a multifunctional equipment which is used for processing mixes liquid&liquid (emulsion), liquid&solid (suspension, slurry) and also liquid&gas. Major functions of RIA are:

  • homogenization of emulsions and slurries

  • processing of oil-based liquid products: homogenization of oil and oil products, improving quality of diesel, gasoil, reducing oil viscosity, reducing paraffin (wax) molecular structures, the impact of water presence in gasoline&diesel (by creating well mixed and homogeneous oil-water mixture

  • reagent-free decontamination & disinfection of water (including sewage water), desalination (as a part of DEWA-Deaslination System)

  • food industry: mixing pasts&meshes, mixing paints

  • liquids activation for further usage

  • other

Homogenization, Fine milling

RIA makes liquids homogeneous (uniform), mixes hardly mixable liquids like water+oil or others. Makes the fine milling of slurries till 10…120mkm depending on media.

Mixing, Colloidal Solutions

High-impact cavitation effect together with fine makes possible production of colloidal solutions

Oil-based fuels improvement

RIA destroys long molecular chains and reduces flash point, pour point and viscosity, breaks wax (paraffine) includes, makes uniform water-oil emulsion from HFO, FO and others.



RIA could be used as a part of different technological complexes:

  • fuel industry – production of homogeneous emulsions from FO/HFO, watered fuels, reducing viscosity of oil-based products (e.g. heavy fuel oils, mazut, etc), reduces viscosity up to 30%, reduces flash point and pour point for oil on 5-10 deg C., reduces catalysts consumption on 20…30%

  • in agriculture – homogenization & decontamination of bio-humus and humus-based products, production of humus-based fertilizers

  • improving the quality of network water in heating system by increasing its’ pH level

  • other applications.

How it Works

RIA has rotor and stator, both of them have holes (channels) for liquids. Number of channels depend of RIA-model.

Incoming liquid goes into the central input connector on the front of RIA. Due to centrifugal forces liquid rush to channels in the rotor. Due to permanent rotation channels in rotor and stator periodically coincide what opens the way for liquid to flow outside of stator to the RIA output. Specially designed rotation speed, channels shape in rotor&stator and distance between them – all together form conditions for the creation of cavitation bubbles.

Unlike static reactors input pressure for RIA is relatively low and does not exceed 4…6bar.

RIA product lines are produced in two major modifications:

  • RIA-150M, RIA-200, RIA-250.

Model Range & Characteristics



RIA-200 RIA-250
Rotor Diameter

150 mm

200 mm

250 mm

Number of channels in rotor&stator




Channels width in rotor&stator

2 – 3 mm

2 – 3 mm

3 mm

Capacity, m3/h (on water)

3 – 5

5 – 10

25 – 30


2,0 – 3,0 kW

5,0 – 7,5 kW

15-18,5 kW

Rotation speed

3000 rpm

3000 rpm

3000 rpm


380 V

380 V

380 V

Lenght* Width* Height* 775 mm 340 mm 345 mm 970 mm 445 mm 440 mm 1080 mm 500 mm 630 mm
Weight* 60kg 110kg 180kg