Beijing Zhong Ke San Huan Hi-Tech Co., Ltd.

Sintered NdFeB is the strongest permanent magnet material in the world today, offering outstanding permanent magnetic properties and excellent value compared with conventional permanent magnet materials, together with superb stability, exceptional cost-effectiveness and reliable mechanical strength and corrosion resistance. The SANMAG N series is San Huan's standard (1) magnetic property grade system for sintered NdFeB, divided into 48 grades across the M/H/SH/UH/EH/EHS temperature classes. It is widely used in transportation, energy, communications, home appliances, machinery and medical equipment, and is playing an important role in green energy and artificial intelligence.

Grades: 48 in total from N42 to N42EHS, covering the N/M/H/SH/UH/EH/EHS temperature classes; Remanence Br: 13.0-13.5 kGs (1.30-1.35 T) for N42 and 14.4-15.0 kGs (1.44-1.50 T) for N54; Coercive force HcB: 836-1059 kA/m (10.5-13.3 kOe, tiered by grade); Intrinsic coercivity HcJ: 876-2888 kA/m (11-30 kOe, tiered by M/H/SH/UH/EH/EHS class); Maximum energy product (BH)max: 318-350 kJ/m3 (40-44 MGOe) for N42 and up to about 398 kJ/m3 (50 MGOe) for N54; Other physical properties: density 7.5 g/cm3, Vickers hardness 600 HV, Curie temperature 580-600 K, recoil permeability 1.10

• Automotive electric drive motors
• Electric power steering and vehicle sensors
• Wind power generation
• HDD/optical disc drives
• Inverter air conditioners/refrigerators/washing machines
• Elevator linear motors
• MRI scanners
• Robotics, intelligent manufacturing and autonomous driving

The SANMAG G series is San Huan's standard (2) magnetic property grade system for sintered NdFeB. It is a family of high-intrinsic-coercivity, high-temperature grades covering 66 grades across the H/SH/SHB/UH/UHB/EH/EHB/EHS/EHSB/TH/THB/THS classes, intended for drive motors, generators and other applications that demand a large demagnetization margin under high-temperature service.

Grades: 66 in total from G52H to G44THS; Remanence Br: 14.2-14.6 kGs (1.42-1.46 T) for G52H; Coercive force HcB: 971-1121 kA/m (12.2-14.1 kOe, tiered by grade); Intrinsic coercivity HcJ: 1332-3502 kA/m (17-44 kOe, tiered by H/SH/UH/EH/EHS/TH class); Maximum energy product (BH)max: 382-430 kJ/m3 (49-54 MGOe) for G52H and 318-350 kJ/m3 (40-44 MGOe) for G44THS

• Drive motors for high-temperature vehicle service
• Industrial motors and generators
• Hybrid/electric vehicle traction

To improve corrosion resistance and meet specific surface finish requirements, San Huan can apply a variety of surface treatments to SANMAG sintered magnets according to customer needs, and provides custom designs of composite coatings suited to the different service environments of permanent magnets, ensuring long-lasting durability.

Nickel plating: strong corrosion resistance with outstanding tolerance of high temperature and high humidity; Zinc plating: good corrosion resistance and strong performance in salt-spray testing; Phosphating: clean surface with a certain degree of rust protection; E-coating (electrophoretic): strong corrosion resistance, outstanding salt-spray performance and good tolerance of high temperature and humidity; Aluminum plating: strong corrosion resistance, good resistance to high temperature and humidity, excellent adhesive bonding performance

• Corrosion protection for automotive magnets
• Protection in high-temperature and high-humidity environments
• Surface conditioning for adhesive-bonded assembly

Bonded NdFeB magnets feature extremely high dimensional precision and uniform, consistent magnetism; they can be made into complex shapes that are difficult to achieve with sintered NdFeB, are easy to mold integrally with other metal or plastic parts, and offer diverse magnetization schemes, low eddy current loss and strong corrosion resistance. The NEOM series is the grade family of compression-molding (Compaction Molding) bonded magnets, comprising 13 grades.

Grades: 13 in total from NEOM-2 to NEOM-13L; Molding process: compression molding (Compaction Molding); Remanence Br: 290-390 mT (NEOM-2) up to 760-830 mT (NEOM-13E/13L); Intrinsic coercivity HcJ: 480-720 kA/m (tiered by grade); Maximum energy product (BH)max: 16-32 kJ/m3 (NEOM-2, 2.0-4.0 MGOe) up to 88-104 kJ/m3 (NEOM-13 series, 11.0-13.0 MGOe); Curie temperature: 305-350 C; Maximum working temperature: 160-180 C; Density (uncoated): 4.6-5.4 to 6.1-6.4 g/cm3; Recoil permeability: 1.2; Reversible temperature coefficient of remanence: -0.10 to -0.13 %/C

• HDD spindle motors
• Mobile phone vibration motors
• Printer/copier magnetic rollers and motors
• Power tools
• Micro motors and sensors for new energy vehicles

The NEOLET series is the grade family of injection-molding (Injection Molding) bonded NdFeB magnets, comprising 11 grades. It is suitable for complex-shaped rotors, magnetic rings and other micro-motor components that are injection molded integrally with metal or plastic frames.

Grades: 11 in total from NEOLET-3R to NEOLET-8; Molding process: injection molding (Injection Molding); Remanence Br: 370-420 mT (NEOLET-3R) to 670-730 mT (NEOLET-8); Intrinsic coercivity HcJ: 640-1114 kA/m (tiered by grade); Maximum energy product (BH)max: 24-32 kJ/m3 (NEOLET-3R) to 68-88 kJ/m3 (NEOLET-8); Curie temperature: 305-360 C; Maximum working temperature: 130-180 C; Density (uncoated): 4.2-4.7 to 5.5-6.0 g/cm3; Recoil permeability: 1.2; Reversible temperature coefficient of remanence: -0.10 to -0.13 %/C

• Spindle motors of computer HDD and optical drives
• Printer/copier motors and magnetic rollers
• Drive and control components of inverter energy-saving appliances
• Consumer electronics
• Micro motors and sensors for new energy vehicles

The NEODEX series is the grade family of extrusion-molding (Extrusion Molding) bonded NdFeB magnets, comprising 4 grades, supplied by Shanghai San Huan Magnetic Materials Co., Ltd. using special magnet extrusion technology: continuous extrusion keeps dimensions and properties almost deviation-free along the length with negligible taper; magnets can be machined to over 1 meter and one set of dies covers products of different lengths. Compared with compression-molded magnets they have lower porosity and better corrosion resistance and can be used uncoated depending on the application; compared with injection molding they contain less resin and deliver higher magnetic performance.

Grades: 4 in total, NEODEX-5/8/10/11; Molding process: extrusion molding (Extrusion Molding); Remanence Br: 450-520 mT (NEODEX-5) to 670-730 mT (NEODEX-11); Intrinsic coercivity HcJ: 640-1000 kA/m (tiered by grade); Maximum energy product (BH)max: 32-44 kJ/m3 (NEODEX-5) to 68-88 kJ/m3 (NEODEX-11); Curie temperature: 305-360 C; Maximum working temperature: 130 C; Density (uncoated): 5.5-6.1 g/cm3

• Slim bar-shaped micro motor magnets
• Ring/multipolar magnetized rotors
• Micro motors for new energy vehicles

Soft magnetic ferrite cores for deflection yokes (DY) are a subcategory of San Huan's soft magnetic ferrite core products, serving as an indispensable functional material of the information age in the deflection yoke assemblies of display electronic devices.

Material: soft magnetic ferrite; Application positioning: cores for deflection yokes (DY); Product line: soft magnetic ferrite cores (widely used in mobile communications, the Internet, office automation, automatic control, green lighting, instruments and meters, industrial and medical instruments, automotive electronics and aerospace)

• Deflection yokes of display devices
• Electron beam deflection control

Soft magnetic ferrite cores for power supplies and communications are used in transformers, inductors and other magnetic components of switching power supplies and communication network systems; they are a subcategory of San Huan's soft magnetic ferrite core products.

Material: soft magnetic ferrite; Application positioning: cores for switching power supplies and communication systems; Product line: soft magnetic ferrite cores (covering mobile communications, Internet ISDN/ADSL network systems, digital SPC switching equipment, anti-electromagnetic-interference, switching power supplies and other applications)

• Switching power supply transformers
• Mobile communications and network systems
• Digital SPC switching equipment

Multi-purpose small soft magnetic ferrite cores are intended for inductors, transformers and other components in miniaturized electronic devices; they are a subcategory of San Huan's soft magnetic ferrite core products.

Material: soft magnetic ferrite; Application positioning: multi-purpose miniaturized cores; Product line: soft magnetic ferrite cores (covering liquid crystal displays (LCD), green lighting, instruments and meters, office automation and other applications)

• Liquid crystal displays (LCD)
• Green lighting
• Instruments and meters

Soft magnetic ferrite cores for noise suppression are used in anti-electromagnetic-interference (EMI) filtering components, suppressing noise in electronic equipment and circuits; they are a subcategory of San Huan's soft magnetic ferrite core products.

Material: soft magnetic ferrite; Application positioning: noise-suppression / anti-electromagnetic-interference (EMI) cores; Product line: soft magnetic ferrite cores (covering automatic control, industrial and medical instruments, automotive electronics and aerospace industries)

• EMI filtering
• Automotive electronics noise suppression
• Industrial and medical instruments

Amorphous and nanocrystalline soft magnetic cores for precision current transformers. Amorphous and nanocrystalline soft magnetic materials feature high permeability, high saturation magnetic flux density, low loss and good temperature characteristics and stability; hailed as new green energy-saving materials of the 21st century, they have driven and enabled higher frequency, miniaturization and environmental protection in electronic products.

Material: amorphous and nanocrystalline soft magnetic materials; Characteristics: high permeability, low loss, good temperature characteristics; Application positioning: precision current transformer cores

• Precision current transformers
• Power electronics measurement and protection

Amorphous and nanocrystalline soft magnetic cores formed by a spray process, leveraging the materials' high saturation magnetic flux density and good temperature stability to serve the information & communications and power electronics industries.

Material: amorphous and nanocrystalline soft magnetic materials; Characteristics: high saturation magnetic flux density, good temperature stability; Application positioning: spray-formed cores

• Information and communication devices
• Power electronic components

Amorphous and nanocrystalline soft magnetic cores for inverters, serving as reactor and transformer cores in high-frequency inverter circuits and supporting the higher frequency, miniaturization and energy saving of electronic products.

Material: amorphous and nanocrystalline soft magnetic materials; Characteristics: high permeability, low loss; Application positioning: inverter cores

• Inverters
• High-frequency transformers and reactors

Amorphous and nanocrystalline soft magnetic cores for common-mode inductors, using high permeability to suppress common-mode noise; widely used in the information & communications and power electronics industries.

Material: amorphous and nanocrystalline soft magnetic materials; Characteristics: high permeability, good temperature characteristics and stability; Application positioning: common-mode inductor cores

• Common-mode inductors
• Electromagnetic noise suppression

For long-term stable development, San Huan participates in investment cooperation with upstream rare earth raw material companies and has joined raw material bases in China's major rare earth producing regions, becoming a shareholder of Jiangxi Southern Rare Earth High-Tech Co., Ltd. and Ganzhou Keli Rare Earth New Materials Co., Ltd., thereby securing rare earth raw material supply for its magnet manufacturing business.

Cooperation positioning: upstream rare earth raw material investment and raw material base security; Resource layout: raw material bases in China's major rare earth producing regions; Related companies: Jiangxi Southern Rare Earth High-Tech Co., Ltd. and Ganzhou Keli Rare Earth New Materials Co., Ltd. (equity participation)

• Rare earth permanent magnet raw material supply
• Upstream industry chain synergy