Precision-engineered hardware customized for severe duty precast manufacturing and high-torque mechanical applications.
Sintered Neodymium-Iron-Boron (NdFeB) arc magnets, often known as segment magnets, represent the pinnacle of modern permanent magnetic design. By shaping the material into precise geometric arcs, manufacturers optimize the magnetic flux density within electric motor stators, rotors, and magnetic coupler assemblies. This geometry allows the magnetic field to focus precisely where mechanical work is converted or captured.
From an engineering perspective, the performance of an arc magnet depends heavily on its magnetic orientation. The orientation can be radial (aligned outward/inward from the center of the arc), diametrical (aligned parallel to the diameter plane), or axial (aligned along the length). Achieving strict tolerances during wire-cutting and grinding is paramount to avoiding core cogging torque in permanent magnet synchronous motors (PMSM) and brushless DC motors (BLDC).
Additionally, advanced protective coatings such as double-layer Nickel-Copper-Nickel (Ni-Cu-Ni), Epoxy, Zinc, and chemical vapor deposited Parylene are applied to shield these high-energy magnets from oxidation, maintaining flux stability under harsh working conditions.
We track and adapt to global macroeconomic shifts to guarantee our components remain at the cutting edge of industrial performance.
The automotive sector's rapid pivot to battery electric vehicles (BEVs) demands high-coercivity (UH, EH, AH series) NdFeB segments capable of operating up to 200°C without suffering irreversible demagnetization.
Servo motors powering collaborative robots (cobots) require custom arc profiles to ensure minimum weight while delivering high torque densities for precise multi-axis movements.
Integrating neodymium magnets with carbon steel housings enables the precast concrete industry to replace traditional welding/bolting with switchable magnetic shuttering boxes.
Direct procurements require rigorous standards. We deliver complete verification for high-stake industrial buyers.
Industrial-grade applications demand segment-to-segment magnetic flux consistency of under ±2%. Variance in magnetic strength across rotor magnets results in thermal anomalies, dynamic imbalance, and early motor insulation degradation. We verify magnetic flux alignment via advanced Helmholtz coils.
High-speed motor shafts run at thousands of RPMs with micro-clearances. Sintered magnet segments must be finished via precision cylindrical grinding to within ±0.05mm. This guarantees optimal fit and mitigates structural stress on laminations.
To meet international trade agreements, we test and verify all raw materials and chemical processes. Our products carry complete documentation for ISO 9001, RoHS, REACH, and conflict minerals compliance, preventing import roadblocks.
Leveraging domestic raw material networks to guarantee pricing stability and reliable global distribution.
Operating a contemporary magnet factory in China goes beyond basic output; it requires total system integration. Through our Factory 4.0 initiative, we utilize smart raw material tracking systems that monitor rare earth element markets (Nd, Pr, Dy, Tb) in real time. This allows us to lock in material pricing early and insulate global customers from market volatility.
Our production floor uses computer-controlled vacuum sintering ovens to guarantee consistent material grain sizes during processing. Post-sintering is monitored via digital optical sorting machines that inspect physical geometries for cracks or chips with absolute accuracy. This level of control reduces scrap rates and lowers total manufacturing costs.
By controlling all operations in-house—from powder metallurgy to mechanical grinding, electroplating, and magnetization—we maintain complete control over lead times. We ensure fast, reliable transit times, helping global clients minimize storage fees and optimize inventory turnover.
Uniform thermal gradients during sintering ensure consistent microstructure distribution across the magnet's geometry, avoiding local weaknesses.
Custom magnetization fixtures apply uniform electromagnetic forces, ensuring precise magnetic orientation across complex arc profiles.
The shuttering magnet for concrete formwork is a proven safe and efficient tool in precast concrete production. It features a 1600kg series with a large magnetic force, reusability, and durability.
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The advantages of 4600 lbs(2100kg) pull force Precast Concrete Shuttering Magnet for Concrete Formwork in product manufacturing are obvious, it can increase productivity and quality improvement.
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This precast magnets with 5300 lbs(2400kg) magnetic force is a popular product in Europe now. Its powerful magnetism can handle a variety of usage scenarios, such as house construction walls.
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The 1300kg vertical tensile force neodymium precast concrete magnet is commonly used to hold the side moldings of precast concrete elements (e.g. flat floor slabs, walls) in place.
View DetailsQCM Magnet specializes in offering complete magnetic fixing solutions for the production of precast concrete components. Our primary products include Shuttering Magnets and their corresponding accessories, Formwork Magnets, Magnetic Chamfering Strips, and various pre-embedded insert magnets. Utilizing 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.
We are willing to share our expertise with you to help you solve your specific application needs for magnetic components. Read more →
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 leading global manufacturer and excellent service provider of magnetic solutions for the precast concrete industry.
Ensuring total compliance with worldwide manufacturing, engineering, and quality standards.
Precast concrete systems: Shuttering molds shape edges/openings on flat surfaces using magnetic fixation, while mold...
QCM, a global leader in magnetic components, will participate in UK Construction Week 2025. From May 7th to 9th, at S...
Find technical insights and sourcing advice straight from our engineering team.
Neodymium magnets (NdFeB) offer much higher magnetic field densities compared to traditional Ferrite variants. This translates to higher holding force within a much smaller footprint. For shuttering concrete applications, using Neodymium allows for compact, lightweight boxes (e.g., 2100kg holding force) that operators can easily manipulate, preventing steel platform damage and reducing structural labor costs.
We source sintered Neodymium with elevated Coercivity (Hcj). Using grades like M, H, SH, UH, or EH guarantees performance in conditions up to 200°C without significant loss of magnetism. Each production batch undergoes strict hysteresis graph testing to verify the magnetic properties before shipping.
For high-moisture applications like precast yards or wind turbines, we recommend a durable Epoxy coating or double-layer zinc plating. For severe industrial duty, enclosing the magnets inside a laser-welded stainless steel (SS304 or SS316) housing provides long-lasting protection against corrosion and mechanical damage.
Yes. We specialize in producing custom-engineered Halbach Arrays. Using precise CNC grinding, we align and assemble multiple magnetized sectors to concentrate magnetic force on one side of the assembly while reducing it to near-zero on the opposite side. This is ideal for medical devices, linear motors, and high-efficiency coupling applications.
Minimum order quantities depend on the custom mold dimensions required. Standard production runs take 20 to 30 days, including sintering, heat treatment, precise grinding, and surface coating. Standard precast concrete magnetic components are kept in stock for immediate dispatch.
Direct manufacturer catalog for structural engineering, automation, and precast concrete mold fixing assemblies.
