NdFeB Permanent Magnetic Door Stopper

The door catcher contains a high magnetism permanent magnet, which ensures the stability of the door. Compact size saves room and makes the door catcher more concealed

Material: Plastic or Stainless steel & magnets

Size: Various as per your requests

Color: White, black or others according to your requirement

NdFeB (Neodymium-Iron-Boron) – is the most powerful rare-earth permanent magnet, because of this, it called super magnet or strong magnet . NdFeB magnet was developed from the year of 1983 and became commercially available in 1984. Neodymium magnet have the highest Br, and BHmax of any magnet formula, NdFeB(Neodymium-Iron-Boron) magnet is used most popular by people in industry and our daily life, because it has superior magnetic properties than other kind of magnet. The outstanding characteristics are as follows-------- 

*Higher unit magnetic properties than other magnet and assure you of smaller size and lighter weight in designing devices. 

*Being mostly an iron based alloy, NdFeB type rare earth magnet is much more prone to surface oxidation or rust. To eliminate such a problem, the user should consider magnet coating, plating, or suitable surface treatment. 

*Being less prone to chipping during handing 

*Lower temperature coefficient of magnetic properties than ceramic but higher than SmCo type rare earth magnet. Therefore, this NdFeB type rare earth magnet will suffer irreversible loss at high temperature

The Nd-Fe-B permanent magnets, which are called the next centurial magnets, are used in a wide range of industries including computer, automobile, electric machinary, electro-sound devices, automatic control, magnetic force mechanism, microwave commnication, petrochemical industry, medical apparatus and equipment. The magnets are the ideal materials for the subminiature magnetic devices with high function.

NdFeB magnets is especially suitable for developing those new products demanding high quality, small volume and light weight.

PCT:130c ,humidity 100%,vapor pressure 2.7 bar.20 days,average low weight loss less than 2 mg/cm2

Common Applications :

Sensors   Linear actuators   Microphone assemblies    Magnetic separators   DC and servo motors   Speakers   Printers   Magnetic hooksComputer rigid disc drives   Beam controls   Intelligent toys   MRI/NMR

We are specialized in producing NdFeB Magnet over many years,We guarantee the best price based on the same quality and service. Our finance conditiearon and industrial reputation are excellent.

Testing Center

We are ISO/TS16949:2002 certified and well implement all procedures strictly under control. Problem preventive actions and quality assurance are preoperly combined with special inspection for all procedures from raw material purchasing ,outside cooperating part manufacturing,inside manufacturing to shipping . We also install a complete set of physical and chemical test equipment to make sure that all our products are manufactured and shipped under strictly quality control .

Salt Spray Test :

Mainly test the surface treatment against the corrosion.  Usually the tested samples will be  continuous sprayed 24 hours in the 35℃ temperature to see if there is any rust appearance on the surface. 

Projection Instrument:

Mainly test the magnets with irregular shapes such as arc segments and any other irregular-shaped parts to see if their dimensions meet the customers' requirements or not.  

PCT Instrument:

Mainly test the magnets to prevent against corrosion on the high temperature and high atmospheric pressure . Usually the test condition is 120℃ temperature and 2 atmospheric pressure .

Heat& Humidity Instrument:

Mainly test the magnet to against corrosion on certain temperature and humidity . Usually the test condition is 80℃ temperature and 90%+/-3% humidity

Hysteresgraph:

Mainly test the magnetic characteristics of the magnet, including Residual (Br ), Coercive(Hcb) . Intrinsic  Coercive(Hcj), Max. Energy product(BH max) and any other related magnetic parameters. 

HSMAG Magnets has been supplying high quality Neodymium Magnets to customers for about 20 years.

Super Magnet

Made of neodymium, the most powerful magnet material in the world

Great for projects that require extreme strength in a small size

Permanent magnetism guaranteed

Not for children