BMD Range

BMD75 to BMD5400

The BMD series of magnetic couplings have significantly enhanced the proven magnetic drive system.

There are no longer any external rotating parts and so the unit is available CE marked.

The drives and the stirrer shaft have no direct contact in the BMD 75. The stirrer shaft is driven as a result of the interacting magnetic fields. The shaft runs smoothly and with near zero vibration. Only the easily replaceable bearings are subject to wear.

Magnetic Coupling BMD75 for Glass Conical Joints and Threaded Connections

Magnetic Coupling BMD75 for Glass Conical Joints and Threaded Connections

The BMD75 is provided, as standard, with a threaded connector and an RPM measurement output.
The standard M36 screw thread connection is designed for operation up to 100 bar (higher pressures on request).

Alternative connections include B29, B45 and M30.

Technical Data

  • Maximum torque: 75 Ncm
  • Maximum speed: 2500 rpm
  • Maximum temperature 250o C
  • Maximum pressure: 100 bar
  • Stirrer shaft diameter: 10 mm
  • Bearing materials: PTFE/Graphite
BL75 Showing Threaded Connection and Conical Joint Connection

BMD75 Showing Threaded Connection and Conical Joint Connection


BMD300/800/1200/1800/3600/5400

The BMD300 is a high torque magnetic coupling (300 Ncm) used as standard on our BEP280 range of autoclaves.  There are no external rotating parts and because of the high torque it can be used to stir high viscosity products in vessels up to 20 litres.  Rated to 150 bar. Maximum stirrer speed 2000rpm.  An ATEX certified version is available.  Standard materials of construction are stainless steel or Hastelloy, any other weldable metal can be used such as Titanium, Monel, Tantalum, etc.

The BMD800 is the higher torque version (800 Ncm) for extremely high viscosity products or larger vessels.  Versions available up to 5400 Ncm.

These systems use PTFE/graphite slide bearings as a standard but can be fitted with ceramic ball bearings, if necessary.

We now have a leaflet giving some more detail on this equipment available to download in our download section.

BMD 300 Magnetic Coupling

BMD 300 Magnetic Coupling

BMD 1800 Magnetic Coupling

BMD 1800 Magnetic Coupling


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© 2001-2011 Ken Kimble (Reactor Vessels) Ltd. All rights reserved. Ken Kimble (Reactor Vessels) Ltd., 85 Thomas Way, Lakesview International Business Park, Hersden, Canterbury, Kent, CT3 4NH  UK Tel: 01227 710274 Fax: 01227 258840