Sterimixer bearing assembly consists of a male bearing unit mounted on the weld plate, with a matching female bearing unit mounted in the impeller. Sterimixer products can be equipped with tungsten carbide, silicon carbide or Dri-amond™ (diamond coated silicon carbide) bearings.
The weld plate is welded onto the tank bottom and is most commonly made out of AISI 316L stainless steel. Comparable SMA and SMO models fit onto the same weld plate and bearing, making it easy to exchange impeller types. Additionally, in most weld plate sizes, more than one size mixer can be installed, providing a flexible platform.
The geometrical configuration of the magnets, aligning North-South couplings alternatingly and radially, provides the strong magnetic coupling needed for mixing liquids up to 1000 cP.
The drive unit is the driving mechanism of the mixer. It consists of the motor, gearbox, drive-unit-flange, shaft and magnet rotor. Most Sterimixers are fitted with painted electric motors. Drive units with extended gearbox shafts are available for jacketed vessels. Other configurations such as explosion proof and stainless steel are available on request.
Magnetic mixer drive units are always equipped with a variable frequency drive. The Sterimixer drive unit is capable of being operated by VFD, either from a central site-automation system or through its own local control box.
Pictured is a Steridose Control Box Mark III with touch screen: This option includes a touch screen HMI/controller that allows for easy control of the mixer speed and displays both measured rpm and set rpm. Up/down arrows allow operator to increase/decrease mixer speed. All programming is accessed through the HMI.