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Funrun: 20 to 150 Ncm

The Premex magnetic coupling type "Funrun" is equiped with a 3-phase 230/400V electromotor suitable for frequency converters and has a M30x2 connection. For absolutely leak tight stirring of reactors at high pressure or full vacuum.

Premex Funrun Magnetic coupling

Features and advantages

  • Stainless steel or Hastelloy C22 as standard material. Versions in Hastelloy C276, B3 or Titanium Gr. 2 on request
  • Option to choose between different types of bearings. 
  • 3-phase 230/400V electromotor: different types available
  • Reed contact or Hall sensor for rpm measurement.
  • Easy to change and clean the internal shaft and bearings 
  • Side connection with valve for gas feed or cleaning
Torque 20 - 150 Ncm
Pressure max 700 bar
Temperature max 500 °C

Connection coupling to reactor

  • M30x2 thread. (option to change thread type and dimensions)
  • Sealing to the autoclave lid by a metal to metal seal or O-ring (Viton, Kalrez, EPDM etc)

Bearings inside coupling

  • The stirring shaft assembly inside the coupling is dry running: no contamination with lubricants
  • Very easy to change bearings without disconnection the coupling from the reactor
  • Different types of bearings can be used depending on temperature and chemistry: chrome steel or hybrid ball bearings, graphite/teflon slide bearings etc.


The use of a 3-phase 230/400V motor gives a lot of advantages:

  • Low maintanance
  • Can be used with frequancy drive
  • Configurable according to your specifications. (ATEX classes, power output, protection class etc)

Customized configuration and options

  • Available in ATEX version
  • With reduction gearbox or Planetroll between motor and coupling
  • Option to choose from multiple types of electromotors
  • Water cooled jacket for high temperature applications