Kest – RM Mixer Rapid motion

Vigorous mixer for volumes up to 8.000 liter


  • Vigorous Mixing
  • Full traceability on all parts in media contact
  • All tank plates are FEM Analyzed according to PED and ASME
  • Zero particle shedding
  • Minimize downtime
  • ATEX Version available



316L (1.4435)




Kest Rapid Motion Mixer is built for a perfect mixing result with high-intensity mixing, minimal downtime, zero particle shedding and no contamination risk. Ideal for powder mixing, buffer tanks and upstream applications up to 8.000 liter. 


 The Kest Rapid Motion Mixer is a bottom mounted magnetically coupled mixer with a user-friendly design and innovative engineering. Its unique design and many powerful features provide cost efficient, low maintenance processes with reliable mixing results. Everything from its mixing head design and the bearing materials is built for one thing: perfect flow.

Vigorous mixing with a perfect result

The unique mixing head design with small wings allows to run the mixing head fast enough to create high-intensity mixing, a way of injecting more energy into the tank. This is excellent when you like to incorporate powder that floats on top or easily creates lumps. It also works great for buffer tanks and upstream applications.

Zero particle shedding

The robust bearing combination of Zirconium and Sic and the fine-tuned geometry, ensures no particle generation in your media. The higher bending strength of the zirconium material enables the male bearing to be made in one solid piece. This optimizes the aseptic design and increases the robustness and low wear property of the bearing.

Total integrity of the tank

The Mixer tank plate is machined from a solid bar. The design is FEM analyzed in comly with PED and ASME pressure vessel code. The tank plate is welded into the tank and creates a solid barrier with no risk of contamination of the media inside the tank.

Minimize downtime

The drive unit is equipped with the patented Kest-Lock connection that ensures quick disconnection from the tank plate during maintenance. When you put the drive unit back on the tank plate, the spring closed Kest-Lock helps the operator to hold the drive unit in place when tightening the screw.

Technical information

Sizes30 liters to 8.000 liters
Pressure range-1 to 7 bar
Temp. range0°C to 150°C
Material-Mixerhead: 1.4435 (316L) and Silicone carbide (SiC)
-Bearing: Zirconium dioxide (ZrO2)
-Tankplate: 1.4435 (316L)
-Sealing EPDM or Silicone
FinishingRa≤[0.5 µm] [20 µin] on surfaces with product contact
Electrische specificationsDepends on model type, see datasheet
MarkingHead and Bearing is marked with ID No. Tank plate is marked with material grade and heat number
CertificatesFDA, USP Class VI, 3.1, IP55