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DongGuan Golds-magnets Technology Co., Ltd. was established in 2012, is a professional manufacturer of NdFeB permanent magnets, high temperature resistant SmCo magnets and customized magnets. The products are widely used in information technology, automotive industry, machinery manufacturing, aerospace, electromechanical systems, medical equipment and other fields. Our goal is to be your truly reliable partner of magnet assembly in China. With professional customization service, competitive price, quality assured products, we are a good choice as your one-stop partner for long-term business.
Why choose us
Strict quality control process
We have our own production plant and adhere to the highest quality control process in the industry to ensure that every link from raw material procurement to product manufacturing is strictly tested and inspected. We are committed to providing customers with neodymium magnet products that meet expectations and requirements.
Testing equipment
Our factory is equipped with a variety of advanced reliability testing equipment, such as salt spray chambers, constant temperature and humidity chambers, high temperature testing machines, magnetic property analyzers, two-dimensional projectors, as well as comprehensive methods such as drop tests and pull tests to meet various product testing requirements.
Our certifications
Dongguan Golds-magnets Technology Co., Ltd has proudly achieved ISO9001 and ISO 14001 certifications, showcasing its dedication to maintaining the highest standards of quality and environmental management.
Cost saving & fast delivery
Owning 3 subsidiaries for raw materials, finish processing and magnets production, we ensure you low cost and short lead time.
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Halbach Array MagnetsMaterial: NdFeB Magnetread more
Material Grade: (not specified)
Application: Nuclear Magnetic Resonance, Magnetic Levitation, Permanent Magnet Special Motors
Specification: Multi-poles... -
Square Samarium Cobalt MagnetMaterial: Samarium Cobalt Magnetread more
Material Grade: SmCo 2:17
Application: New Energy Vehicle Motors, Medical Equipment,industry use
Specification: Square
Coating: N/A... -
Samarium Cobalt Disc MagnetsMaterial: Samarium Cobaltread more
Material Grade: SmCo 2:17
Application: Aerospace, High Temperature Electric Motors, Automotive Sensors, Magnetic Drives, Magnetic Pumps, Microwave... -
Samarium Cobalt Ring MagnetsMaterial: Samarium Cobaltread more
Material Grade: SmCo 2:17
Application: Aerospace, High-Temperature Electric Motors, Automobile Sensors, Magnetic Transmissions, Magnetic Pumps, Microwave... -
Arc Samarium Cobalt MagnetMaterial: Samarium Cobaltread more
Material Grade: SmCo 2:17
Application: Aerospace, Military, High-Temperature Electric Motors, Automobile Sensors, Magnetic Transmissions, Magnetic Pumps,... -
FPC Magnetic CarriersMaterial: High-temperature alloy with built-in high-temperature magnetread more
Material Grade: Samarium Cobalt
Application: SMT (Surface Mount Technology), FPC (Flexible Printed Circuit)... -
Magnet for Auto IndustryMaterial: Samarium Cobaltread more
Material Grade: 2:17
Application: Automation Equipment, Industrial Robots, Smart Home Devices
Specification: Customizable based on customer drawings...
Temperature stability
The defining characteristic of samarium cobalt magnets is their exceptional temperature stability. These magnets can operate at higher temperatures compared to other types of magnets, without significant loss of magnetic strength.
Corrosion resistance
Samarium cobalt magnets are known for their resistance to corrosion, which enhances their durability and longevity. This corrosion resistance means samarium cobalt magnets do not need to be plated to protect them, unlike neodymium iron boron.
High magnetic strength
Samarium cobalt magnets exhibit extremely high magnetic strength, surpassing many other types of permanent magnets. This characteristic makes them ideal for applications where a strong and stable magnetic field is crucial, such as in sensors, magnetic couplings, and certain types of motors.
Low temperature coefficient
Smco magnets have a low-temperature coefficient of magnetic remanence and coercivity. This means that their magnetic properties are less sensitive to temperature changes compared to other magnet materials.
Long operational life
The robustness and stability of samarium cobalt magnets contribute to their long operational life. Their resistance to demagnetization, corrosion, and temperature variations ensures that they can maintain their magnetic properties over an extended period.
Applications of Samarium Cobalt Magnets
Sensors
Samarium cobalt magnets are used in sensors. These sensors are concerned with converting a magnetic field into electrical signals. The sensors are usually used in aerospace and automobiles.
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Generators
Samarium cobalt magnets are used in generators. The samarium cobalt magnet provides the magnetic field for the generator. These generators are reliable and can be used in wind turbines.
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Refrigerators
Samarium cobalt magnets are fast becoming popular in the refrigeration industry. Massachusetts Institute of Technology is currently researching how magnets can be used as refrigerants.
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Nuclear Magnetic Resonance Spectrometer
Samarium cobalt magnets are also used in NMR spectrometers. In NMR spectrometers, magnets are used to investigate the spin of protons and neutrons. NMR spectrometers are used to study both the physical and chemical properties of organic compounds.
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Medicine
Samarium cobalt magnets are used in medical equipment that require high temperatures for sterilization. This is because samarium cobalt magnets are stable under high temperatures. They are also used for medical implants.
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Samarium Cobalt Magnets Features & Characteristics
Rades & materials
We carry a large inventory of licensed, samarium cobalt magnet materials in standard and premium grades for reduced production and lead times. We offer sintered smco magnets in grades that range from 16 mgoe to 33 mgoe.
Sizes & shapes
Standard samarium cobalt magnet shapes include discs, blocks, rings, and arc segments in a variety of sizes and grades. Non-standard shapes can also be custom fabricated to blueprint specifications from raw stock.
Temperature considerations
Samarium cobalt magnets exhibit magnetic properties that are very stable with temperature, and can be used in applications where temperatures reach up to 572°f (300°c). They perform well for applications where the stability of magnetic characteristics is critical.
Manufacturing methods
Samarium cobalt magnets are extremely brittle, so they are prone to chipping and cracking. Therefore, special machining techniques involving diamond-grinding must be used to machine this material prior to magnetization. We are fully equipped to machine these materials to your project’s specialty requirements.
Surface treatments
The corrosion resistance of samarium cobalt is very good, therefore coatings to prevent corrosion or oxidation are generally not required.
Magnetizing & assembly considerations
Smco magnets are anisotropic, and can only be magnetized in the orientation direction. Magnetizing fields in excess of 50 koe are required to saturate these materials.

SmCo Magnets are very strong and brittle, requiring appropriate handling and packing to ensure safety and prevent damage. Most receiving departments are not familiar with the strength of Samarium Cobalt magnets and this can result in injury or broken parts. All personnel that may come in contact with this alloy should be made aware of the dangers of handling these magnets. The brittle nature of the alloy can lead to flying chips if the magnets are allowed to impact each other or a solid surface. Larger magnets can become a pinching hazard if caution is not exercised. We urge all customers to discuss handling techniques pertinent to their magnets with a our team member.
Off-the-Shelf and Bespoke Samarium Cobalt Magnets Solutions
With over 12 years of magnetic expertise, we can help you turn your ideas into profit by maximizing performance efficiency or reducing costs. We work closely with our clients to produce value-added magnetic solutions with either an existing off-the-shelf magnet or designing a bespoke magnet or a full magnetic assembly. With a wealth of magnetic resources and expertise, we can help you fulfill your next-generation design projects.
1.Customized samarium cobalt magnets
Using our extensive facilities, we provide customized magnet design, working to precise client specifications. We also design and produce complete customized samarium cobalt magnets assemblies that incorporate the magnet with a non-magnetic alloy or housing. From simple pot magnets to complex motor or audio equipment sub-assembly, we can handle any project.
2.Off-the-shelf samarium cobalt magnets
Often we can provide an immediate off-the-shelf samarium cobalt magnets available from stock. We have a wealth of stock magnet materials with a wide-ranging choice of shapes, sizes, characteristics and features. We can also provide extensive advice regarding the best magnetic option for your application.

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FAQ
We're professional samarium cobalt magnets manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy customized samarium cobalt magnets at competitive price from our factory.
FPC Magnetic Carriers, Square Samarium Cobalt Magnet, Samarium Cobalt Ring Magnets-
N54 Square Neodymium MagnetsMaterial: NdFeBread more
Material Grade: N54
Application:
Coating: Ni
Tolerance: ±0.05mm... -
Smartwatch MagnetMaterial: Neodymium Magnetread more
Material Grade: N35 - N52
Application: Smartwatch Accessories... -
Magnetic Belt for WatchMaterial: Neodymium Magnetread more
Material Grade: N35 - N52
Application: Smartwatch Belt Accessories... -
Versatilen Magnetic ToyMaterial: Neodymium Magnetread more
Material Grade: N35 - N52
Application: Smartwatch Belt Accessories... -
Bluetooth Earbuds MagnetMaterial: Neodymiumread more
Material Grade: N35 - N52
Application: Bluetooth Earbuds, Magnetic Charging... -
Electromagnetic Relay NdFeB MagnetsMaterial: NdFeB Magnetread more
Material Grade: Industrial Grade (Meets National Quality Standards)...

