Magnetically coupled rotary drive (MRD93)

Available for Quote


MRD93 Magnetically-coupled Rotary Drive
DN Type Flange OD mm Type of Operation  Breakaway Torque Nm Thrust N Max Rotation RPM Life  Shipping weight kg Order Code 
DN19 34 Manual 0.5 10 1000 Standard 0.3 ZMRD93  
Technical Data:ZMRD93
Leak Rate <1x10-10 mbar l.s-1
Pressure Range 1x10-10 mbar – 2 bar absolute
Temperature Range 250 oC standard UHV drives
  200 oC Extended UHV drives
Materials Body – 316 stainless steel
  Mechanical parts – aluminium alloy – grade 6082
  Bearings – stainless steel
  Magnets – sintered rare-earth
Lubrication Dry film molybdenum disulphide (standard UHV drives)
  UHV compatible lubricant (extended life drives)
Actuation Manual
Options Ceramic bearing options, special shaft length/diameters, available on request.



  • Vacuum enclosure machined from single piece of 316 stainless steel
  • No vacuum seals or bellows - no risk of leaks to atmosphere
  • Exceptional torsional rigidity
  • Zero angular backlash under low load/acceleration
  • Cannot be damaged by application of excessive torque
  • Long service life
  • Bakeable to 250 oC (standard UHV drive)
  • Motor can be fitted/removed in minutes
  • Manual drive has V-groove in drive knob for alternative motorisation