About NdFeB magnet:
Neodymium iron boron ( NdFeB) is a type of rare earth magnetic material.
NdFeB is the most advanced commercialized permanent magnet material available today.
This material has similar properties as the samarium cobalt except that it is more easily oxidized
and generally doesn't have the same temperature resistance.
However, NdFeB magnets have the highest energy products approaching 52MGOe and are
mechanically stronger than samarium cobalt magents. NdFeB material is more costly by weight than
ceramic or alnico but produces the highest amount of flux per unit of volume or mass amking it very economical for many applicantions. Their high energy products lend themselves to comnpact designs
that result in innovative applications and lower manufacturing costs.
Unprotected NdFeB magnets are subject to corronsion. Surface treatments has ben developed that
allow them to be used in most applications. These treatments include copper, silver,, gold, nickel,
zinc and tin plating and epoxy resin coating.
Beneficial characteristics of NdFeB magnets include their very high energy product, very high
coercive force, and moderate temperature stability. Drawbacks include lower mechanical strength,
and low corrosion resistance when not properly coated or plated.
Magnetic Grades and Temperature:
The Grade of a magent directly refers to the Maximum Energy Product of the material that composes the magnet. It in no way refers to the physical properties of the magnet. Grade is generally used to describe
how "strong" a permanent magnet material is. The energy products is specified in the unites Gauss Oersted.
One MGOe is 1,000,000 Gauss Obersted. A grade forty (N40) would have a Maximum Energy Product of 40 MGOe.The higher the grade the "stronger" the magnet.
Magnetic materials have a wide range of working temperatures. The following chart the various materials and their maximum working temperature. NdFeB material
Ferrite Magnet is manufactured from oxide material by powder metallurgical process. Its advantages include: low-cost excellent corrosion resistance, resistance to be demagnetized etc. The normal working temperature of Ferrite Magnet is between-40C and +250C.It can be magnetized before or after assembling. Generally, Ferrite Magnet can be machined to regular shapes like segments, blocks, rings and discs etc. The normal grades for sintered Ferrite Magnets are Y10,TY25, Y30, Y30BH, Y35, etc. Advantages of Ferrite Magnet: Ferrites have isotropic characteristics, weak magnetic performance, has the same magnetic performance in any direction, multipolar magnetic charge. The main raw material of ferrite is oxides, so it is not corroded by high temperature, high humidity or chemicals (except strong acid and base); with excellent diamagnetic impedance, no flux loss before and after assembly and magnetic charging; working temperature is-40C to + 250C, poor temperature coefficient; Br temperature coefficient is-0.2% /C, 0.2% under Br, etc. per 1 Cincrease; high hardness, wire cutting and grinding; ferrite is brittle and fragile during production and transportation. magnetic requirements and good for strict working environment requirement.
Neodymium magnets (also known as NdFeB, Neo or NIB magnets), are strong permanent magnets made from an alloy of neodymium, iron & boron. Part of the Rare-Earth magnet family, they have the highest magnetic properties of all permanent magnets. Due to their high magnetic strength and relatively low-cost, they are the preferred choice for many consumers, commercial, industrial and technical applications.NdFeB is divided into sintered NdFeB and bonded NdFeB. Bonded NdFeB is magnetic in all directions and corrosion resistance and is divided into Bonded Compression NdFeB Magnet and Bonded Injection NdFeB Magnet; while sintered NdFeB is easy to corrosion, the surface requires coating, generally divided into axial and radial magnetic charging. Advantages of Sintered NdFeB Magnet : 1. Very hard and brittle, high diamagnetic resistance, high cost / performance ratio, not suitable for high working temper ature; 2. Magnetic performance is higher than that of the rare earth cobalt permanent magnet, the residual magnetic induction strength, magnetic induction coercivity, the maximum magnetic energy product is very high, is the current magnetic performance of the best permanent magnet; 3. High cost performance.
Samarium Cobalt (SmCo) magnets are made by a sintering process and exist in two forms. The first is Sm1Co5(SmCo 1:5),which has a maximum energy product of between 14 and 24MGOe. The second and more common form is Sm2Co17(SmCo 2:17) which has a maximum energy product of between 22 and 32 MGOe. The main Sm2Co17 alloy is around 35% Samarium (Sm)and 60% Cobalt (Co)with the balance being from varying amounts of lron (Fe) Copper (Cu). Hafnium (Hf) and Zirconium (Zr). Praseodymium (Pr) may also be used. Sm1Co5 is made of only Sm and Co and has excellent corrosion resistance. â?¢ Advantages of SmCo Magnet: 1.Superior resistance to high temperature. 2. Excellent resistance to corrosion, no coating is needed for surface protecting. 3.High working temperature. 4.SmCo is suitable for machines with high magnetic requirements and good for strict working environment requirement.
AINiCo is composed primarily of Aluminum Nickel Cobalt and also Copper and Titanium. They are manufactured through either casting or sintering process. Cast AINiCo may be manufactured in complex shapes such as horseshoes not possible with other magnet materials. Sintered AINiCo offer slightly lower magnetic properties but better mechanical characteristics. it can be efficiently magnetized in any direction, and for anisotropic AINiComagnet, it generally has greater magnetic capacitive in a preferred orientation than isotropic types. AINiCo is hard and brittle, Machining or drilling cannot therefore be accomplished by ordinary methods. Holes are usually cored in at the foundry, and magnets are cast close to final size and then finish machined to closer tolerances. â?¢ Advantages of AlNiCo Magnet: 1.Customized designs are available. 2.Max working temperature can be as high as 550�°C. 3.Disadvantage: Br and BH(max)are not as high as rare earth magnet. 4.High energies and relatively low coercivity. 5.High magnetic flux density; low mold charge stable temperature properties; easy to shap.
Flexible magnets are low-cost extruded permanent magnets made by bonding a strontium magnetic powder ina flexible vinyl binder. Microcrystalline magnetic powder of flexible magnet leads to its high magneticperformance, and artificial rubber makes it very flexible. Its maximum magnetic energy product has reached 90KJ/ m3 (11.25MGOe), industrial mass production magnetic performance range of 16 to 68KJ/m3(2.0~8.5MGOe).Due to its excellent flexibility, it can assemble faster than molded magnets. Flexible magnetic sheets, magnetic strips and labeling magnets are easy to use and manipulate to your desired specifications. Advantages of Flexible Magnet: Flexible magnets are easy to use, easy to manipulate, low cost and extremely versatile. They can easily be cut, bent,twisted, slit, or coiled and adhere to multiple items and surfaces. In addition, flexible magnetic materials require no surface treatments so no special precautions need to be taken to protect the magnetic surface. Our simple sheet on Care Tips will ensure that the use of magnetic sheeting on vehicles will not mar paint finishes. Technical Data of Flexible Magnet: Shapes: Rolls or Sheeting & Strips Magnetization: Axially Magnetized Br: 1,600 Gauss BHmax:0.60 MGOe Hc: 1,370 Oersted's Max Operating Temperature:212F/100 Density(lb/in3): 0.133
Magnetic Writing and Drawing Board Material: ABS+ Magnet
Magnetic Stirrer Digital LCD Display Last Measurement in Memory Heating amp Stirring can proceed Simultaneously Bushless Motor for Low Noise Anti scratch and Corrosion Resistance Ceramic Plate Surface ABS Cabinet Brand Labtical Model NameNumber MS5LH Type Magnetic Stirrer Speed range 1002000rpm Maximum mixing capacity 5000 ml Temp Range amp Accuracy 300C Accuracy 1C Temperature Sensor PT100 Time range 099h99min Top Plat Size 168 x 168mm Display LCD Motor Type Bushless Motor Operating Mode Temperature Speed Timing Memory last data Power 500W Power Supply AC 220V 5060Hz Packing Dimension 335 x 235 x17cm Weight 25kg
Permanent Disc Neodymium Magnet for Packing Description of the Disc Magnet Neodymium magnet, the third generation of the rare-earth permanent magnet, is the most powerful and advanced permanent magnet today. The disc Magnet is one type of the neodymium. ... made of the neodymium, iron, and bonded magnetic alloy blend. The disc magnet is plated with Nickel-Cooper-Nickel coating for a shiny corrosion-resistant finish. The North and South poles are on both flat side of the magnet since magnetizing direction is Axial Magnetizing. The magnet is powerful and can be used to help stuff to stick into the iron surface. Tolerance: For each magnet, there has a tolerance to produce, as follow: +/- 0.05 mm for the small dimension; +/- 0.1 mm for the common specification; +/- 0.15mm for the big blocks. Magnetic testing As the third generation "Magnetic King", the disc neodymium magnet has its powerful pulling force. Magnetizing Direction The normal magnetizing method of the disc neodymium magnet: Axial and Radial. With the Axial magnetizing, the magnetic spread over both flat side; with the Radial magnetizing, the magnetic spread over the surround. Due to this product is a customizable product, so pls send us the specific size, the same as the picture, thanks! Coating: There have many plating options of the disc neodymium magnet, besides the Nickel coating, there also have Zinc, Gold, Black Epoxy, White Epoxy and so on. The Black Epoxy and White Epoxy will be more durable. Standard Bulk Packing The common method of the packing for disc neodymium magnet: Pieces packed into the little white paper box, then 8 boxes packed into the High-quality Corrugated carton box with anti-magnetic. About us Xiamen MagForever Company Xiamen Magnet Forever gained its good reputation by finding the best product solutions and delivering the finest quality magnet. We specialize in motor magnets, magnetic assemblies, and coupling while always focusing on providing the best professional services. Whatever your magnet need are, you can always find them here Xiamen MagForever. We offer not only the product but also the solution for the magnet.
1. Materials:sintered neodymium-iron-boron; 2.grades:n35-n52; n35m-n50m; n35h-n48h, n35sh-n45sh; n30uh-n40uh, n30eh-n38eh. Our advantage 1) free samples 2) all industrial shaped magnets available 3) do as per your drawings 4)100% factory direct price Note: oem service, high quality, fast delivery, best after-sale service Carton, according to your requirement
