![\"Image](\"https:\/\/monroeengineering.com\/blog\/wp-content\/uploads\/2020\/09\/thumbnail_IMMX-2500B-300x155.jpg\")
Most Magnets are made overseas and are sold and distributed\nthrough well-established channels. Working your way up that chain is important\nto finding good Value. For the one percent of the magnet business that is in\nrepair or replacement then big box retailers and neighborhood hardware\u2019s are\nwhere to start. For small quantities (less than 1,000-10,000 magnets) then an industrial\nsupplier like Monroe Engineering will serve as a good resource. Where the manufacturer\nof a product using lots of magnets goes is the stock and sell distributor. This\nis the partner that has the relationship with the manufacturer you need.\nBecause their business is based on very high volumes, they will offer the best\ncombination of cost, timing, and quality. <\/p>\n\n\n\n
When you reach out to a distributor the more information you\nprovide the better served you will be. With that in mind here is \u201cwhat you need\nto know to order a magnet\u201d. <\/p>\n\n\n\n
Standard Magnet Shapes <\/strong><\/h2>\n\n\n\nEach of the shapes listed comes in a wide variety of strengths and sizes. Every magnet starts life as one of these shapes. You can do secondary processes like a half dome on a bar, but that will require a tooling and process fee. Not a problem if you are buying millions, but a big cost driver at low volume. Standard magnets shapes are:<\/p>\n\n\n\n
Arcs <\/p>\n\n\n\n
Discs <\/p>\n\n\n\n
Blocks <\/p>\n\n\n\n
Cylinders\/Rods <\/p>\n\n\n\n
Bars <\/p>\n\n\n\n
Strips <\/p>\n\n\n\n
Rings <\/p>\n\n\n\n
Spheres <\/p>\n\n\n\n
Cubes<\/p>\n\n\n\n
Cones<\/p>\n\n\n\n
Flexible strips and\nsheets<\/p>\n\n\n\n
Adhesive backed strips and sheets <\/p>\n\n\n\n
Common Magnet Coatings<\/strong><\/h2>\n\n\n\n Magnets are very hard\nand in addition to chipping and breaking they can corrode or \u201crust\u201d. Nearly all\nmagnets are coated or painted for appearance and longevity. These coatings are:\n<\/p>\n\n\n\n
Nickel: If your Magnet is bright silver it is coated with\nNickle steel<\/p>\n\n\n\n
Plastic: Any color\nyou can imagine but most are black\/brown <\/p>\n\n\n\n
Rubber: Also, typically a dark color <\/p>\n\n\n\n
Molded plastic or rubber: Magnets can be imbedded in\nproducts during plastic injection molding. <\/p>\n\n\n\n
Magnet Categories, Types, and Styles and Applications <\/strong><\/h2>\n\n\n\nUnlike biology which gives us definitions of subgroups like genus\nand species, manufacturing terms and descriptions are rarely so straightforward.\nBecause magnets are so widely used in so many applications, buying them would\nstart with what your magnet is doing. Here are the basic categories of Magnets:\n<\/p>\n\n\n\n
Industrial Lift Magnets<\/a>: These are used for material handling in a manufacturing or production environment. There are two sub types. Both are \u201cswitched\u201d so the magnet can be made inert. Electromagnetic lift magnets require a source of electricity. These magnets can be made very strong to lift very heavy loads. If, however, the electricity goes away so does the magnetic attraction and the load heads toward the floor. More commonly used is a pair of magnets inside a casing with a mechanical lever to reverse the Polarity of two magnets inside. These magnets are in widespread use in many Industries. They are rated by load capacity in Kilograms and pounds. They are typically made to hold three times the rating. <\/p>\n\n\n\nIndustrial Sweeping and Tank Magnets: Machine Shops and\nmetal fabricators generate metal \u201cchips\u201d which if they do not imbed themselves\nin a dirty floor are best picked up with a magnet. Industrial platers and\ncoaters use magnets on the end of a hoist to pick up small metal parts lost in\nthe tanks. <\/p>\n\n\n\n
Pot Magnets: Pot magnets are the attaching of a magnet\ninside a steel cover. The steel cover then becomes the attaching point for\nthings like hooks, studs, fasteners, and clips. These are used in households, office\nsettings, manufacturing. Basically, they work anywhere you want to hang or\nattach something lightweight to metal. <\/p>\n\n\n\n
Permanent Magnets: A permanent magnet means just that. It\nwill retain its magnetic characteristics unless it is exposed to extreme\ntemperature. <\/p>\n\n\n\n
Electro Magnets: A magnet that is inert until an electrical\ncharge is applied using a coil around a steel or Iron core. These can be made\nvery powerful and can lift a train off the tracks or pick or launch and airplane\noff the deck of a carrier.<\/p>\n\n\n\n
Temporary Magnet:\nBecomes magnetic when in the presence of a magnetic field. Rub a paper clip on\na magnet and for a short period of time it will retain the magnetic property,\nalbeit very weakly. <\/p>\n\n\n\n
Motor Magnets: Typical in the shape of an arc or radius depending on the size of the motor. These can be tiny or gigantic, but every motor has them and there’s a lot of motors out there. Motor magnets are far and away the most common application for magnets in terms of percentage of magnets used at 35% of all magnets made. <\/p>\n\n\n\n
Catches, Latches, and Clasps: Plastic encased magnetic latches\nand catches are used in furniture, cabinets and appliances universally. They\nare typically \u201clight duty\u201d magnets made to be strong enough to hold a small\ndoor closed but light enough to pull open by hand. They are made by the\nbillions to standard sizes and strengths. Less than 10% of all magnets made are\nin these application<\/p>\n\n\n\n
Electronics: This is the largest and most varied category.\nEvery electronic device uses magnetic energy. DVD players, Televisions, X ray\nmachines, Switches, Relays, Solenoids, Sensors, Cell Phones, Wave Guides, and\non and on. To say the world operates on magnets would not be far from the\ntruth.<\/p>\n\n\n\n
Heavy Duty Magnets:\nJust about any magnet that lifts a load heavier than a human can is considered\nheavy duty. <\/p>\n\n\n\n
Light duty Magnets: Think small, any magnet a human can\nmanipulate easily would be light duty. <\/p>\n\n\n\n
Rare Earth Magnets: Todays lightweight and powerful magnets\nexist because some minerals can be magnetized to a greater degree than steel or\nIron alone. This can further improve by combining some of them. The development\nof these magnets included the process by which they are made, which was\npatented. Most rare earth magnets have been produced only under license to\nthese patents. Rare Earth Minerals are just that. Unlike coal there are small\ndeposits spread around the planet with most in Asia. The rare Earth Magnets are:\n<\/p>\n\n\n\n
Neo<\/a>: Made from Neodymium, Iron and Boron. Neodymium is a mineral used both in lasers and magnets. By far the most common of all the rare earth magnets. <\/p>\n\n\n\nCeramic Ferrite: The ceramic component resists corrosion so\nthis magnet does not require extra coating. A tradeoff between power and cost. <\/p>\n\n\n\n
![\"Image](\"https:\/\/monroeengineering.com\/blog\/wp-content\/uploads\/2020\/09\/thumbnail_neodynium-magnet-block-hole.jpg\")
Neodynium Magnet<\/figcaption><\/figure><\/div>\n\n\n\nSmco: Samarium Cobalt performs 2 times better at high\ntemperatures than Neo and is more stable in performance over a range of temperature\n<\/p>\n\n\n\n
Alnico: One of the early rare earth magnets made primarily of Aluminum, Nickle, and Cobalt. Resistant to corrosion and chemicals while stable up to 535 degrees. These are still used in Industrial settings and things like guitar pickups. <\/p>\n\n\n\n
Horseshoe Magnets: The universal symbol of the magnet was simply a way to align the poles of a magnet for strength while making it easy to grasp. Simple, elegant, and effective for its time. <\/p>\n\n\n\n
How Magnets Are Rated for Load <\/strong><\/h2>\n\n\n\nMagnets are rated several ways and unless you are an\nengineer the basic unit of measure is lbs. Or kilograms of force required to\nseparate a magnet in full contact with a direct pull. Note the words \u201cDirect\nPull\u201d. I was once challenged to pull apart two small but powerful magnets with\nmy hands. Since magnets do not resist shear as well as direct force, I simply\nslid them apart sideways. Getting them back together became the problem. That\nis why a refrigerator magnet might be hard to peel off but can be slid around. <\/p>\n\n\n\n
Sometimes magnets are not in direct contact with the item being lifted. The ability of the magnetic field to hold a given amount of weight through an air gap Is also measured. That is why your refrigerator magnet will only hold so thick a stack of documents. The magnetic field must reach through the thickness of paper. <\/p>\n\n\n\n
Ultimately a magnet is measured by its \u201cMaximum Energy\nProduct\u201d. This is the number of Mega Gauss Oersteds. (mgoe) The higher this value\nthe greater the magnetic field and relative strength of the magnet will be. <\/p>\n\n\n\n
Modern Neo Magnets are rated with the letter N followed by a number. The highest current rating is N-52. If the rating is followed by a letter that denotes its relative resistance to temperature. If there is no letter it is considered to meet the std for that rating. <\/p>\n\n\n\n
Should you want to check the breakaway force of a magnet the\nMagnet Distributor and Fabricator Association has published a std. MDFA-101-95 <\/p>\n\n\n\n
At the end of the day \u201cyou can never have too much magnet\u201d when it comes to matching a magnet to an application <\/p>\n\n\n\n
How Magnets Work<\/strong><\/h2>\n\n\n\nMagnets started as a naturally occurring mineral in the form of Lodestone. The earth itself is a giant magnet. Modern magnets use different materials to achieve their great strength, but the principle of their performance is the same as the lodestone discovered about 600 BC Not all minerals are magnetic. Magnetic material like lodestone is not uniformly present in the earth\u2019s crust. By simple definition, a magnet \u201cIs an object that has an energy field which attracts metals like Iron, steel, and cobalt.\u201d The word object is used because inert material can be magnetized by the creation of an electrical field around it. The \u201cmagnetic field\u201d is a flow of energy outside the body of the object going from one pole to the other\u2026\u2026. Negative to Positive. A metal object within that field is attracted to the object generating the field. Modern magnets are made of powder that is charged after aligning the particles to a uniform direction, literally making millions of tiny magnets work together once the powder is compressed and heated in a process called sintering. The stronger the magnet the greater the pull and reach of the magnetic field. <\/p>\n\n\n\n
Choosing a Magnet Partner <\/strong><\/h2>\n\n\n\nNow that you know the basics of how to describe your magnet application and requirements it is time to find a partner. First, talking to the factory is out of the question in most applications. Most magnets are produced in Asia under license. They are bought in bulk and standard sizes by stock and sell distributors. The distributors are only as good as their Asian suppliers, their ability to stock a wide array of products is a function of financial strength. Because of their complexity it is quite easy to make a mistake when speccing a magnet on the internet. Do not hesitate to reach out to a search result that meets the basic criteria of your magnet. If a human being picks up the phone quickly and seems knowledgeable you are on your way to a good low-cost solution.<\/p>\n\n\n\n
See Monroe’s <\/strong>Magnets<\/a>.<\/h3>
\n","protected":false},"excerpt":{"rendered":"
Magnets are very hard\nand in addition to chipping and breaking they can corrode or \u201crust\u201d. Nearly all\nmagnets are coated or painted for appearance and longevity. These coatings are:\n<\/p>\n\n\n\n
Nickel: If your Magnet is bright silver it is coated with\nNickle steel<\/p>\n\n\n\n
Plastic: Any color\nyou can imagine but most are black\/brown <\/p>\n\n\n\n
Rubber: Also, typically a dark color <\/p>\n\n\n\n
Molded plastic or rubber: Magnets can be imbedded in\nproducts during plastic injection molding. <\/p>\n\n\n\n
Magnet Categories, Types, and Styles and Applications <\/strong><\/h2>\n\n\n\nUnlike biology which gives us definitions of subgroups like genus\nand species, manufacturing terms and descriptions are rarely so straightforward.\nBecause magnets are so widely used in so many applications, buying them would\nstart with what your magnet is doing. Here are the basic categories of Magnets:\n<\/p>\n\n\n\n
Industrial Lift Magnets<\/a>: These are used for material handling in a manufacturing or production environment. There are two sub types. Both are \u201cswitched\u201d so the magnet can be made inert. Electromagnetic lift magnets require a source of electricity. These magnets can be made very strong to lift very heavy loads. If, however, the electricity goes away so does the magnetic attraction and the load heads toward the floor. More commonly used is a pair of magnets inside a casing with a mechanical lever to reverse the Polarity of two magnets inside. These magnets are in widespread use in many Industries. They are rated by load capacity in Kilograms and pounds. They are typically made to hold three times the rating. <\/p>\n\n\n\nIndustrial Sweeping and Tank Magnets: Machine Shops and\nmetal fabricators generate metal \u201cchips\u201d which if they do not imbed themselves\nin a dirty floor are best picked up with a magnet. Industrial platers and\ncoaters use magnets on the end of a hoist to pick up small metal parts lost in\nthe tanks. <\/p>\n\n\n\n
Pot Magnets: Pot magnets are the attaching of a magnet\ninside a steel cover. The steel cover then becomes the attaching point for\nthings like hooks, studs, fasteners, and clips. These are used in households, office\nsettings, manufacturing. Basically, they work anywhere you want to hang or\nattach something lightweight to metal. <\/p>\n\n\n\n
Permanent Magnets: A permanent magnet means just that. It\nwill retain its magnetic characteristics unless it is exposed to extreme\ntemperature. <\/p>\n\n\n\n
Electro Magnets: A magnet that is inert until an electrical\ncharge is applied using a coil around a steel or Iron core. These can be made\nvery powerful and can lift a train off the tracks or pick or launch and airplane\noff the deck of a carrier.<\/p>\n\n\n\n
Temporary Magnet:\nBecomes magnetic when in the presence of a magnetic field. Rub a paper clip on\na magnet and for a short period of time it will retain the magnetic property,\nalbeit very weakly. <\/p>\n\n\n\n
Motor Magnets: Typical in the shape of an arc or radius depending on the size of the motor. These can be tiny or gigantic, but every motor has them and there’s a lot of motors out there. Motor magnets are far and away the most common application for magnets in terms of percentage of magnets used at 35% of all magnets made. <\/p>\n\n\n\n
Catches, Latches, and Clasps: Plastic encased magnetic latches\nand catches are used in furniture, cabinets and appliances universally. They\nare typically \u201clight duty\u201d magnets made to be strong enough to hold a small\ndoor closed but light enough to pull open by hand. They are made by the\nbillions to standard sizes and strengths. Less than 10% of all magnets made are\nin these application<\/p>\n\n\n\n
Electronics: This is the largest and most varied category.\nEvery electronic device uses magnetic energy. DVD players, Televisions, X ray\nmachines, Switches, Relays, Solenoids, Sensors, Cell Phones, Wave Guides, and\non and on. To say the world operates on magnets would not be far from the\ntruth.<\/p>\n\n\n\n
Heavy Duty Magnets:\nJust about any magnet that lifts a load heavier than a human can is considered\nheavy duty. <\/p>\n\n\n\n
Light duty Magnets: Think small, any magnet a human can\nmanipulate easily would be light duty. <\/p>\n\n\n\n
Rare Earth Magnets: Todays lightweight and powerful magnets\nexist because some minerals can be magnetized to a greater degree than steel or\nIron alone. This can further improve by combining some of them. The development\nof these magnets included the process by which they are made, which was\npatented. Most rare earth magnets have been produced only under license to\nthese patents. Rare Earth Minerals are just that. Unlike coal there are small\ndeposits spread around the planet with most in Asia. The rare Earth Magnets are:\n<\/p>\n\n\n\n
Neo<\/a>: Made from Neodymium, Iron and Boron. Neodymium is a mineral used both in lasers and magnets. By far the most common of all the rare earth magnets. <\/p>\n\n\n\nCeramic Ferrite: The ceramic component resists corrosion so\nthis magnet does not require extra coating. A tradeoff between power and cost. <\/p>\n\n\n\n
Neodynium Magnet<\/figcaption><\/figure><\/div>\n\n\n\nSmco: Samarium Cobalt performs 2 times better at high\ntemperatures than Neo and is more stable in performance over a range of temperature\n<\/p>\n\n\n\n
Alnico: One of the early rare earth magnets made primarily of Aluminum, Nickle, and Cobalt. Resistant to corrosion and chemicals while stable up to 535 degrees. These are still used in Industrial settings and things like guitar pickups. <\/p>\n\n\n\n
Horseshoe Magnets: The universal symbol of the magnet was simply a way to align the poles of a magnet for strength while making it easy to grasp. Simple, elegant, and effective for its time. <\/p>\n\n\n\n
How Magnets Are Rated for Load <\/strong><\/h2>\n\n\n\nMagnets are rated several ways and unless you are an\nengineer the basic unit of measure is lbs. Or kilograms of force required to\nseparate a magnet in full contact with a direct pull. Note the words \u201cDirect\nPull\u201d. I was once challenged to pull apart two small but powerful magnets with\nmy hands. Since magnets do not resist shear as well as direct force, I simply\nslid them apart sideways. Getting them back together became the problem. That\nis why a refrigerator magnet might be hard to peel off but can be slid around. <\/p>\n\n\n\n
Sometimes magnets are not in direct contact with the item being lifted. The ability of the magnetic field to hold a given amount of weight through an air gap Is also measured. That is why your refrigerator magnet will only hold so thick a stack of documents. The magnetic field must reach through the thickness of paper. <\/p>\n\n\n\n
Ultimately a magnet is measured by its \u201cMaximum Energy\nProduct\u201d. This is the number of Mega Gauss Oersteds. (mgoe) The higher this value\nthe greater the magnetic field and relative strength of the magnet will be. <\/p>\n\n\n\n
Modern Neo Magnets are rated with the letter N followed by a number. The highest current rating is N-52. If the rating is followed by a letter that denotes its relative resistance to temperature. If there is no letter it is considered to meet the std for that rating. <\/p>\n\n\n\n
Should you want to check the breakaway force of a magnet the\nMagnet Distributor and Fabricator Association has published a std. MDFA-101-95 <\/p>\n\n\n\n
At the end of the day \u201cyou can never have too much magnet\u201d when it comes to matching a magnet to an application <\/p>\n\n\n\n
How Magnets Work<\/strong><\/h2>\n\n\n\nMagnets started as a naturally occurring mineral in the form of Lodestone. The earth itself is a giant magnet. Modern magnets use different materials to achieve their great strength, but the principle of their performance is the same as the lodestone discovered about 600 BC Not all minerals are magnetic. Magnetic material like lodestone is not uniformly present in the earth\u2019s crust. By simple definition, a magnet \u201cIs an object that has an energy field which attracts metals like Iron, steel, and cobalt.\u201d The word object is used because inert material can be magnetized by the creation of an electrical field around it. The \u201cmagnetic field\u201d is a flow of energy outside the body of the object going from one pole to the other\u2026\u2026. Negative to Positive. A metal object within that field is attracted to the object generating the field. Modern magnets are made of powder that is charged after aligning the particles to a uniform direction, literally making millions of tiny magnets work together once the powder is compressed and heated in a process called sintering. The stronger the magnet the greater the pull and reach of the magnetic field. <\/p>\n\n\n\n
Choosing a Magnet Partner <\/strong><\/h2>\n\n\n\nNow that you know the basics of how to describe your magnet application and requirements it is time to find a partner. First, talking to the factory is out of the question in most applications. Most magnets are produced in Asia under license. They are bought in bulk and standard sizes by stock and sell distributors. The distributors are only as good as their Asian suppliers, their ability to stock a wide array of products is a function of financial strength. Because of their complexity it is quite easy to make a mistake when speccing a magnet on the internet. Do not hesitate to reach out to a search result that meets the basic criteria of your magnet. If a human being picks up the phone quickly and seems knowledgeable you are on your way to a good low-cost solution.<\/p>\n\n\n\n
See Monroe’s <\/strong>Magnets<\/a>.<\/h3>
\n","protected":false},"excerpt":{"rendered":"
Industrial Sweeping and Tank Magnets: Machine Shops and\nmetal fabricators generate metal \u201cchips\u201d which if they do not imbed themselves\nin a dirty floor are best picked up with a magnet. Industrial platers and\ncoaters use magnets on the end of a hoist to pick up small metal parts lost in\nthe tanks. <\/p>\n\n\n\n
Pot Magnets: Pot magnets are the attaching of a magnet\ninside a steel cover. The steel cover then becomes the attaching point for\nthings like hooks, studs, fasteners, and clips. These are used in households, office\nsettings, manufacturing. Basically, they work anywhere you want to hang or\nattach something lightweight to metal. <\/p>\n\n\n\n
Permanent Magnets: A permanent magnet means just that. It\nwill retain its magnetic characteristics unless it is exposed to extreme\ntemperature. <\/p>\n\n\n\n
Electro Magnets: A magnet that is inert until an electrical\ncharge is applied using a coil around a steel or Iron core. These can be made\nvery powerful and can lift a train off the tracks or pick or launch and airplane\noff the deck of a carrier.<\/p>\n\n\n\n
Temporary Magnet:\nBecomes magnetic when in the presence of a magnetic field. Rub a paper clip on\na magnet and for a short period of time it will retain the magnetic property,\nalbeit very weakly. <\/p>\n\n\n\n
Motor Magnets: Typical in the shape of an arc or radius depending on the size of the motor. These can be tiny or gigantic, but every motor has them and there’s a lot of motors out there. Motor magnets are far and away the most common application for magnets in terms of percentage of magnets used at 35% of all magnets made. <\/p>\n\n\n\n
Catches, Latches, and Clasps: Plastic encased magnetic latches\nand catches are used in furniture, cabinets and appliances universally. They\nare typically \u201clight duty\u201d magnets made to be strong enough to hold a small\ndoor closed but light enough to pull open by hand. They are made by the\nbillions to standard sizes and strengths. Less than 10% of all magnets made are\nin these application<\/p>\n\n\n\n
Electronics: This is the largest and most varied category.\nEvery electronic device uses magnetic energy. DVD players, Televisions, X ray\nmachines, Switches, Relays, Solenoids, Sensors, Cell Phones, Wave Guides, and\non and on. To say the world operates on magnets would not be far from the\ntruth.<\/p>\n\n\n\n
Heavy Duty Magnets:\nJust about any magnet that lifts a load heavier than a human can is considered\nheavy duty. <\/p>\n\n\n\n
Light duty Magnets: Think small, any magnet a human can\nmanipulate easily would be light duty. <\/p>\n\n\n\n
Rare Earth Magnets: Todays lightweight and powerful magnets\nexist because some minerals can be magnetized to a greater degree than steel or\nIron alone. This can further improve by combining some of them. The development\nof these magnets included the process by which they are made, which was\npatented. Most rare earth magnets have been produced only under license to\nthese patents. Rare Earth Minerals are just that. Unlike coal there are small\ndeposits spread around the planet with most in Asia. The rare Earth Magnets are:\n<\/p>\n\n\n\n
Neo<\/a>: Made from Neodymium, Iron and Boron. Neodymium is a mineral used both in lasers and magnets. By far the most common of all the rare earth magnets. <\/p>\n\n\n\n Ceramic Ferrite: The ceramic component resists corrosion so\nthis magnet does not require extra coating. A tradeoff between power and cost. <\/p>\n\n\n\n Smco: Samarium Cobalt performs 2 times better at high\ntemperatures than Neo and is more stable in performance over a range of temperature\n<\/p>\n\n\n\n Alnico: One of the early rare earth magnets made primarily of Aluminum, Nickle, and Cobalt. Resistant to corrosion and chemicals while stable up to 535 degrees. These are still used in Industrial settings and things like guitar pickups. <\/p>\n\n\n\n Horseshoe Magnets: The universal symbol of the magnet was simply a way to align the poles of a magnet for strength while making it easy to grasp. Simple, elegant, and effective for its time. <\/p>\n\n\n\n Magnets are rated several ways and unless you are an\nengineer the basic unit of measure is lbs. Or kilograms of force required to\nseparate a magnet in full contact with a direct pull. Note the words \u201cDirect\nPull\u201d. I was once challenged to pull apart two small but powerful magnets with\nmy hands. Since magnets do not resist shear as well as direct force, I simply\nslid them apart sideways. Getting them back together became the problem. That\nis why a refrigerator magnet might be hard to peel off but can be slid around. <\/p>\n\n\n\n Sometimes magnets are not in direct contact with the item being lifted. The ability of the magnetic field to hold a given amount of weight through an air gap Is also measured. That is why your refrigerator magnet will only hold so thick a stack of documents. The magnetic field must reach through the thickness of paper. <\/p>\n\n\n\n Ultimately a magnet is measured by its \u201cMaximum Energy\nProduct\u201d. This is the number of Mega Gauss Oersteds. (mgoe) The higher this value\nthe greater the magnetic field and relative strength of the magnet will be. <\/p>\n\n\n\n Modern Neo Magnets are rated with the letter N followed by a number. The highest current rating is N-52. If the rating is followed by a letter that denotes its relative resistance to temperature. If there is no letter it is considered to meet the std for that rating. <\/p>\n\n\n\n Should you want to check the breakaway force of a magnet the\nMagnet Distributor and Fabricator Association has published a std. MDFA-101-95 <\/p>\n\n\n\n At the end of the day \u201cyou can never have too much magnet\u201d when it comes to matching a magnet to an application <\/p>\n\n\n\n Magnets started as a naturally occurring mineral in the form of Lodestone. The earth itself is a giant magnet. Modern magnets use different materials to achieve their great strength, but the principle of their performance is the same as the lodestone discovered about 600 BC Not all minerals are magnetic. Magnetic material like lodestone is not uniformly present in the earth\u2019s crust. By simple definition, a magnet \u201cIs an object that has an energy field which attracts metals like Iron, steel, and cobalt.\u201d The word object is used because inert material can be magnetized by the creation of an electrical field around it. The \u201cmagnetic field\u201d is a flow of energy outside the body of the object going from one pole to the other\u2026\u2026. Negative to Positive. A metal object within that field is attracted to the object generating the field. Modern magnets are made of powder that is charged after aligning the particles to a uniform direction, literally making millions of tiny magnets work together once the powder is compressed and heated in a process called sintering. The stronger the magnet the greater the pull and reach of the magnetic field. <\/p>\n\n\n\n Now that you know the basics of how to describe your magnet application and requirements it is time to find a partner. First, talking to the factory is out of the question in most applications. Most magnets are produced in Asia under license. They are bought in bulk and standard sizes by stock and sell distributors. The distributors are only as good as their Asian suppliers, their ability to stock a wide array of products is a function of financial strength. Because of their complexity it is quite easy to make a mistake when speccing a magnet on the internet. Do not hesitate to reach out to a search result that meets the basic criteria of your magnet. If a human being picks up the phone quickly and seems knowledgeable you are on your way to a good low-cost solution.<\/p>\n\n\n\nHow Magnets Are Rated for Load <\/strong><\/h2>\n\n\n\n
How Magnets Work<\/strong><\/h2>\n\n\n\n
Choosing a Magnet Partner <\/strong><\/h2>\n\n\n\n
See Monroe’s <\/strong>Magnets<\/a>.<\/h3>
\n","protected":false},"excerpt":{"rendered":"