Electrodynamic Shaker

Sdyn’s SEV and SEW series of Electrodynamic Shaker produces vibration based on the principle of magnetism. The SEV series is air cooled and SEW series is water cooled, respectively. The product portfolio covers all ranges of shaker, from 10 kgf up to 32000 kgf and beyond.

An Electrodynamic Shaker has two separate coils, one is stationary and the other is dynamic. A stationary coil or Field Coil helps in magnetising the iron to produce magnetic field lines and current flowing in the dynamic coil or Armature Coil interacts with these magnetic field lines to produce motion. This principle of magnetism is based on Maxwell’s Right Hand Rule and Fleming’s Left Hand Rule.

Major Sub Systems of the Electrodynamic Shaker are:

Our armature features a web structure to minimise weight, while maintaining structural integrity. The pattern can only be casted, therefore, in order to achieve the best quality, we import these castings from one of the world’s most renowned sources. Complete tooling, milling, drilling, and tapping of these castings is performed in our in-house CNC centre.

The winding process is carried out at our headquarters in Roorkee, India. Special epoxy is used to ensure that the coils adhere to each other as well as the armature structure. Air cooled systems use a solid conductor and water cooled systems use hollow conductor with very heavy insulation.

For an air cooled system, power is transferred to the armature coil using highly flexible copper ropes. For a water cooled system, power and water are transferred on the same line using highly flexible copper ropes and hose pipes, respectively. Only oxygen free copper is used to ensure long life of the conductor.