Kest Magnetic Coupled Mixer, KM

The Kest Mixer is a magnetic coupled mixer. With its aseptic design and excellent mixing performance it has become a popular choice for critical pharma and biotech applications. The Kest Mixer KM range covers mixing volumes up to 22 000 litres. The Kest Mixer is designed for CIP/SIP applications. Easy operator handling of the drive unit is secured by our patented Kest-Lock Connection. With our advanced Speed Sensor technology you will have a reliable process control. The Kest Mixer KM range can be customized to perfectly fit your needs. We can modify the mixing head to mix to the last drop or manufacture the parts that have media contact in specific materials, please contact us. The Kest Mixer KM range is also available in an ATEX version, ask us for more information.

The tank plate is to be welded into the mixing tank, and easy operator handling of the drive unit is secured by the Kest-Lock connection, between the drive unit and tank plate, on the smaller sizes KM-3/7, KM-7/20, KM-20/70, KM-70/120 and KM-120/230.

Unique is the use of Zirconium dioxide (ZrO2) material for the bearings. Zirconium dioxide is chemically unreactive, therefor extremely suitable for applications in biotechnology and is delivered with a FDA and UPS Class VI certificate. It has great advantages over Siliciumcarbide. Zirconium dioxide is tougher and the possibility to accidental run dry. It also makes that de mixer can withstand the impact of bumps and shocks during the transport of the vessel. There are other improvements of the bearing, as shown on the page of the Kest-Mixer Standard male bearings. Also the mixerhead had some improvements to other mixers, for example the large radius of the edges of the female bearing, so there are no sharp edges which are weak spots for damage. The gap between the tank plate and mixerhead is wider, which makes the mixer less sensitive for solid addition. All these improvements gives the Kest-Mixer a higher durability and productivity.

The drive unit can be supplied with a 'clean room' friendly stainless steel cover, which keeps the electromotor extra protected.

Sizes 0,2 litres to 22,000 litres
Pressure range -1 to 7 bar
Temp. range 0°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
Finishing Ra≤0.5 µm on surfaces in product contact
Electrische specifications Depends on model type, see datasheet Kest-Mixer
Marking Head and Bearing is marked with ID No. Tank plate is marked with material grade and heat number
Certificates FDA, USP Class VI, 3.1, IP55


  • Stainless Steel cover
  • Speed sensor which indicates that Mixer head is mounted and verifies direction of rotation

pdfDatasheet KEST Magnetic Coupled Mixer, KM
English - 1,67 MB - Ed. DS-000003 REV C