Electromagnetic Shaker Coil

The electromagnetic shaker coil of the OSR series is frequently used for vibrating bunkers and containers. The aim is to prevent bridges and chimney formation in the feed containers. Further applications are, for example, the shaking in of injection needles in medical technology or the compression of granulate mixtures in the plastics industry.

The oscillating solenoid's magnet system is cast in a plastic housing. It consists of two excitation windings and the two halves of the magnetic body, which are connected on the underside by a permanent magnet. The magnetic circuit is closed over the air gap by the body to be vibrated that represents the armature. The system is biased by the permanent magnet built into the magnetic body. This creates a constant pulling force between the magnetic body and the armature.  If an alternating voltage is applied to the excitation winding, the force effect of the alternating electromagnetic field overlaps the force effect of the permanent magnet.
To achieve the desired vibrating movement, the useful load (the body to be vibrated) must be attached to a base plate or a base so that it can vibrate using vibrating metals, pressure springs, or leaf springs.

Permanent magnetic attachment

A significant benefit of the Kendrion's Shaker Coils is that they can be attached to any magnetic surface due to permanent magnets integrated into the mounting brackets. Along with this, they have a high insensitivity to moisture and dust and are compact and easy to clean.