Precision-engineered magnetic products optimized for heavy industrial fabrication, magnetic fishing, and modular framework configurations.
Disk magnets—often referred to as disc magnets—are the most versatile geometry of permanent magnetics. Defined as flat cylindrical structures where the diameter is greater than the thickness, their magnetic flux fields are optimized to offer high holding pressure when in direct contact with ferromagnetic surfaces. From standard NdFeB grades (N35 to N55) to specialized SmCo (Samarium Cobalt) and anisotropic hard ferrites, picking the correct magnetic material requires an inspection of thermal boundaries, coercive requirements, and surface plating integrity.
| Material Class | Common Grades | Max Temp Limit (°C) | Corrosion Resistance | Primary Industrial Use Case |
|---|---|---|---|---|
| Sintered NdFeB | N35 - N55, N35SH - N52SH | 80 - 150 | Moderate (Requires NiCuNi/Epoxy) | High-performance electric motors, acoustic transducers, sensors. |
| Samarium Cobalt (SmCo) | SmCo17, SmCo5 | 250 - 350 | High (Uncoated acceptable) | Aerospace actuators, down-hole oil drilling rigs, high-temp sensors. |
| Hard Ferrite (Ceramic) | Y30, Y35, Y40 | 250 | Excellent (Fully inert) | Subwoofer motor systems, industrial separation assemblies. |
| Alnico (Cast/Sintered) | Alnico 5, Alnico 8 | 450 - 520 | Excellent | Precision instrumentation, legacy aerospace electronics. |
The manufacturing process of Rare-Earth Disk Magnets relies heavily on precise powder metallurgy, sintering cycles, and slicing tolerances. Raw metals (Neodymium, Iron, Boron, and dopants like Dysprosium for temperature stability) are melted under a vacuum induction furnace to yield alloy flakes. These flakes undergo hydrogen decrepitation and jet milling to produce ultra-fine particles (approx. 3-5 microns).
Particles are fed into a die-press system, where a strong external magnetic field is applied to align the magnetic domains before mechanical compaction.
Compacted green compacts are sintered in a high-temperature vacuum furnace (typically 1000°C to 1100°C) to fuse the particles into solid blocks.
Large sintered blocks are sliced into fine disk shapes using wire electrical discharge machining (EDM) or high-precision diamond wheel slicing tools.
Industrial applications vary significantly by region. In North America and Europe, precast concrete factories utilize high-strength pot and shuttering magnets to streamline building construction. In Asian electronics hubs, precision micro-disc magnets are integrated into sensory modules and acoustic hardware.
In structural civil engineering projects across Germany, China, and the USA, magnetic clamping systems replace traditional physical drilling into concrete casting platforms. Standard 2100kg (4600 lbs) shuttering magnets, powered by N50/N52 sintered neodymium disc magnets, secure formworks without warping or compromising structural platforms. This ensures reusable longevity and reduces setup cycle times by over 40%.
High-power subwoofer systems depend on permanent field generation. Utilizing massive anisotropic ferrite ring/disc magnets (like Y35 and Y40) creates a robust flux gap. For premium automotive speakers requiring high power-to-weight ratios, sintered neodymium disc systems are the gold standard for clean sound profile translation.
* Custom dimensions can be configured via our direct engineering portal.
Qianci Magnet is an established, high-capacity industrial manufacturer specializing in magnetic components. We design and manufacture magnetic formworks, shuttering magnets, insert systems, concrete chamfer strips, and high-energy neodymium disk components.
Using magnetic fixing in precast concrete component production prevents damage to the platform, enhances work efficiency, reduces labor costs, and promotes economic efficiency as the magnetic fixing devices are reusable.
Using our expertise in magnetic components and our extensive experience in supporting the production of precast components, we have developed numerous new and practical magnetic fixing products. Our products come with complete specifications, excellent quality, ease of operation, and long service life. Additionally, we can promptly customize a variety of magnetic fixing parts to meet the diverse needs of our customers.
Qianci Magnet is a strong magnetic component factory, specializing in the production and research and development of formwork magnets, magnetic formwork, insert magnets, magnetic concrete chamferers and other products.
Our business mainly involves precast concrete magnetic system solutions, helping you to better carry out concrete element production.
Become a global leading manufacturer and excellent service provider of magnetic solutions for the precast concrete industry.
Our optimized logistics and material partnerships keep lead times low and product quality consistent.
Located close to rare-earth mining nodes, our factories maintain long-term pricing agreements for neodymium oxide. This protects our clients from market price fluctuations. We also run automated multi-axis grinding mills to ensure precise, dimensional tolerances down to +/- 0.02 mm.
All QCM materials conform strictly to dynamic international metrics, including EN 10204 3.1 material certifications, ISO 9001:2015 quality processes, and RoHS/REACH compliance guidelines.
Precision-engineered magnetic systems designed for quick-install precast concrete connections, heavy machinery setups, and high-output acoustic drivers.
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