Suspended Over-Head magnets are used in “over-the-belt” applications, to pull tramp metal from a bed of material. Two units are used for this application: Electromagnets and Permanent Magnets.
Electromagnets are generally recommended for belt widths over 4’ or with extremely high bed depths. These units utilize high current to “energize” the magnet. The magnet is cleaned by turning it off.
Suspended Magnets protect important processing equipment from ferrous metal damage. Suspended magnets also improve the purity and quality for high volume belt conveyed products. The suspended magnet’s deep reaching magnetic circuits provide unrivaled separation capabilities. In order to achieve maximum separation, use prior to a metal detector.
Permanent suspended overhead magnets require no electricity. Although permanent magnets can be configured for manual cleaning, in most applications, a self-cleaning mechanism is highly recommended. Cleaning belts automatically move the tramp metal out of the magnetic field, and drop it into a chute or bin, outside the product stream.
Related to strength; electromagnets are generally used for deeper burden depths and lifting heavier weights. However, this is not always the case. Smaller (42” and below) permanent magnets tend to be stronger than smaller electros.
The Suspended Electromagnets are engineered to provide top-of-the-line ferrous metal separation performance. If your application requires increased suspension heights for the magnet or have a deep product burden, the suspended electromagnet is an ideal solution due to its deep reaching magnetic field.
Carolina Material Technologies offers two types of Permanent magnets: Self-Cleaning Permanent Magnets, and Manual Clean Permanent Magnets.
The Self-Cleaning Permanent Magnet offers excellent operating efficiency with a continuous cleaning belt to keep collected metal off the magnet face. The Self-Cleaning Permanent Magnet’s powerful, deep reaching magnetic circuit pulls metal to the face of the magnet, where the cleated belt can remove the metal off the end of the magnet and out of the product flow. If you have portable size reduction equipment, the Self-Cleaning Permanent Magnet is an ideal solution, due to its compact design.
The Manual Clean Permanent Magnet is a good cost-effective solution if you require a magnet for equipment protection, but do not have enough ferrous metal in the product flow to require a self-cleaning permanent magnet. The Manual Clean Permanent Magnet offers a couple of cleaning options. A swiper bar can be used to clean the magnet, as well as Slide Pull Slider in either Manual Pull or Crank.