• National Electric Company

Electromagnetic Hammers

NEC Electromagnetic Hammers are the perfect solution for bulk material handling problems in spray dryers, bins, hoppers, cyclones, etc. The electromagnetic hammers are great for applications where sticky, clinging, or fine materials adhere or build-up on the inner surface of the container wall. They are compact, maintenance-free, and operate better than any other hammering system on the market today. NEC Electromagnetic Hammers consist of a stator and rotor, which are made out of high-grade strip lamination to minimize iron losses. There are two salient poles on the stator over which excitation coils are placed. When the hammer is excited by a short duration electrical pulse, the rotor takes the position of minimum resistance to the magnetic path. The part movement of the rotor shaft is directly transmitted to the hammer stroker. The stroker, in turn, hits the hopper with strong force and returns to its original position.

Electromagnetic Hammer Solves:

Bridging: Electromagnetic Hammer is designed to break up bridging by providing powerful impacts to the side walls of the container.

Arching: By creating powerful vibrations Electromagnetic Hammer loosens material and breaks arches, allowing free flow.

Rat Holing: Shaking the sides with cycled impacts ensures constant flow of material and avoids rat holing.

Adhesion: Shakes down material stuck to the walls, allowing complete emptying of the container.

Clogging: Concise impact of Electromagnetic Hammer breaks up material & clears throat of build up allowing free flow.