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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