Magnetic Sweepers

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Magnetic Sweepers, Lifting and Tow Magnets, Fod Magnets

Magnets - Sites and resources with fod magnets for manufacturing and industry.

There are two types of magnets and they are called temporary and permanent magnets. Temporary mean just that-it does not hold its magnetic property. A permanent magnet will retain its magnetic property for a long time. The temporary magnet is made from the materials iron and nickel. They are considered to be soft magnetic material because they loose their magnetism when taken away from a strong magnetic field. A permanent magnet is created when iron, cobalt, and nickel are placed into a strong magnetic field. Permanent magnets are mixtures of iron, nickel, or cobalt and are referred to as hard magnetic material and it is when they are placed in a strong magnetic field they become permanent. Natural magnets are formed from a material called lodestone, and it contains iron. If it is mixed with the cobalt and nickel it forms a stronger magnet. Within this magnet is a field of iron atoms that are in line. At each end of the magnet will be a stronger force-these ends are referred to as poles. The poles of magnetism are the points where the lines of magnetic force come together. When two magnets are put together, the force will attract the two magnets together if the poles are opposite (if the pole of the first magnet is positive and the second is negative). The magnets will stick together. If the "poles" are similar they will repel each other.
A magnet will be attracted to metals even though they are not magnets. They will not however be attracted to items that are made of cotton, wood and plastic. In a magnet there are atoms that are aligned and form what is known as a magnetic domain. Just a regular piece of iron that is not magnetized has atoms that are randomly spaced. A magnetized iron can attract an un magnetized piece of iron because causes the size of domains that are lined up in the direction of the magnetic field. When you remove the nail from the magnet, the pull of it from the magnet causes most of the domains to return to a random arrangement. Other materials that can be "randomly" oriented when exposed to a magnet are copper and wood.

Resources:
Wikipedia.org
DMOZ
About.com

Magnetic Sweepers

Lifting Magnet

Magnetic Sweepers, Lifting and Tow Magnets, Fod Magnets - Find equipment for use in industry.

Overhead Separators offer a practical and efficient method for separating ferrous metal from fast-moving materials on conveyors. Permanent, manual and self-cleaning separator magnets are suspended overhead magnets designed for removing ferrous steel and other magnetic materials during the crushing, screening and sorting processes. The magnet is of the permanent type so no power is required to operate it. Power is only needed when the magnet is self-cleaning and with no supervision required it will cut manpower cost. These magnets can be used in tire shredding processes, pallet recycling plants, processing at manufacturing plants, as well as used over crushed rock or in wood and plastic recycling plants. Using overhead separators will result in a reduction in number of belt pickers required. They reclaim a higher percentage of valuable steel and are easily interchangeable from one machine to another and can be designed specifically to suit your make and model of conveyor.. Easily mounted and virtually maintenance free and include a non deteriorating magnet system which saves money in down time and costly repairs by preventing tramp metal damage to crusher. Drum magnet separators are comprised of a stationary permanent magnet enclosed in a non-magnetic stainless-steel drum. Product flow is diverted so that it falls onto the top and flows across the surface of the drum. Ferrous matter contained in the product flow is drawn to the drum's surface (and held against it) by the powerful magnet housed inside. Magnetic chutes fill with product from conveyors above and the dry material is cleaned with magnets inside the housing unit. After the ferrous material is extracted it is then diverted out of the housing unit onto conveyors again. Magnetic head pulleys are situated at the end of a conveyor system as the final sift of dry product for tramp metals. It works well in tandem with the suspended separator magnets. The Bullet Separator Is an efficient, cost-effective magnet for extracting ferrous metal particles from free flowing granular products. Designed for installation in pipelines or ductwork, as material flows over the magnetic bullet, any ferrous particles are attracted to the highly magnetic surface and securely held in position. By releasing the quick-action catches and opening the door, the bullet swings clear and can then be wiped clean. The operation only takes a few seconds and the door can be closed and back in operation with a minimum of disruption to production. Super Strength Conveyor Magnet Conveyor Magnet is designed to remove larger ferrous metal such as bucket teeth, drill bits, and rebar from high-volume industrial flow. It is designed to remove damaging ferrous debris and provide optimal safety conditions on conveyors, chutes and areas where metal contamination is a problem. Reduces damage to processing equipment. It's magnetic effectiveness is up to 6" and guaranteed permanent. They are weather durable and no maintenance is required. Construction consists of state of the art ceramic permanent magnets, oversize and double bonded, encased in a stainless steel channel and heavy gauge carbon steel back plate.

Resources:
Wikipedia.org
DMOZ
About.com