Premium grade industrial magnets utilizing custom pot layouts, high coercivity NdFeB alloys, and robust steel casings for heavy-duty assemblies.
Designed for precast concrete formwork, providing clean chamfered edges with integrated strong magnet profiles inside durable rubber elements.
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Heavy-duty magnetic formwork systems utilizing strong round NdFeB magnets for fast and secure clamping on steel precast beds.
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Low-price high-performance ring ferrite magnets optimized for acoustic subwoofers and industrial motor drives, manufactured with stable sintering processes.
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High-quality custom ceramic/ferrite rings with exact dimensional tolerances for speaker motor assemblies, sensors, and magnetic separators.
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Precision custom arc-shaped N52 neodymium magnets with multi-layer nickel plating (Ni-Cu-Ni), offering maximized energy product for high-output electric rotors.
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Engineered steel cup assemblies encasing round neodymium magnets, increasing local flux concentration for massive vertical holding capacity.
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High-power precast concrete formwork magnet boxes, designed for heavy flat slab production tables with easy push-button release mechanisms.
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Heavy-duty structural clamps designed to interface seamlessly between our magnetic box systems and custom steel/wooden shuttering profiles.
Get QuoteA deep engineering exploration into raw material composition, magnetic circuits, and modern manufacturing methodologies.
Strong round magnets—primarily consisting of sintered Neodymium-Iron-Boron (NdFeB), Samarium Cobalt (SmCo), and Ceramic/Ferrite compositions—form the backbone of modern workholding, mechanical clamping, and rotary machinery. By placing a round permanent magnet inside a precision-machined steel cup or pot housing, engineers construct a pot magnet system. This design redirects and concentrates the magnetic flux lines from both poles directly onto the single contact surface, exponentially increasing the vertical pulling force relative to an unshielded magnet. This magnetic circuit optimization is vital for heavy-duty industrial workholding where raw shear force and vertical holding capabilities are paramount.
The performance of any round magnet configuration relies heavily on its magnetic properties, characterized by:
Highest Grade NdFeB Available
Maximum Pulling Force Systems
Salt Spray Test Resistance
Precision Machining Tolerances
Deploying specialized magnetic assemblies to improve manufacturing speed, reduce labor, and protect infrastructure.
Magnetic fixing blocks (ranging from 450kg to 2500kg holding force) eliminate the need to weld or bolt formwork directly to the steel casting table. This prevents table surface damage, lowers labor costs, and speeds up structural assembly for modular building construction.
Y35 and Y40 ferrite ring magnets are crucial for creating high-performance loudspeaker motor structures. They offer a stable magnetic field across a wide temperature range, delivering high sound pressure levels and low acoustic distortion at an optimized material cost.
Strong round NdFeB magnets, structured inside custom end-of-arm tooling (EOAT), allow robotic pick-and-place lines to move heavy sheet metal parts safely. This setup provides rapid magnetic activation and release, speeding up high-frequency production runs.
Combining local raw material access, precision automated manufacturing, and rigorous quality inspection to deliver global cost advantages.
Our production facilities benefit from direct access to rare earth extraction and refining centers. This close integration buffers against market price spikes for Dysprosium, Terbium, and Neodymium. It ensures consistent raw material pricing for our long-term OEM contracts and guarantees supply chain stability for high-volume manufacturing lines.
Equipped with vacuum sintering furnaces and multi-axis CNC grinding machines, we manufacture magnet shapes to tolerances of ±0.05 mm. This precision prevents performance issues caused by air gaps when fitting magnets into steel cups, ensuring that every batch meets the calculated design holding force.
We test every production batch using modern equipment to verify structural and magnetic integrity before shipping:
Next-generation advancements in magnetic engineering, focusing on higher thermal thresholds and sustainable chemistry.
By diffusing Dysprosium (Dy) or Terbium (Tb) selectively into the grain boundaries of Neodymium magnets rather than alloying it throughout, we produce magnets with high coercivity and thermal stability while using less heavy rare earth material. This lowers production costs and reduces environmental impact.
We are developing thin-film coatings, including Zinc-Nickel electroplating, Everlube coatings, and chemical vapor deposited (CVD) Parylene. These coatings offer strong chemical protection in harsh marine, acidic, or basic environments without reducing the magnet's holding force.
For applications exceeding 200°C, our Sm2Co17 formulations are engineered to maintain high magnetic output without permanent thermal degradation. This makes them ideal for downhole aerospace sensors, heavy industry ovens, and automotive motors.
Structuring procurement parameters to ensure accurate bidding, consistent production quality, and fast shipping.
To secure accurate pricing and ensure high component quality when sourcing custom round magnets, procurement teams should specify the following requirements in their RFQs:
Define the maximum operating temperature (e.g., N45SH up to 150°C, N35EH up to 200°C). This helps us select the correct grade, avoiding demagnetization in the field.
2. Coating Specifications:Select coatings based on operating environment: Standard Ni-Cu-Ni or Zinc for indoor use; black or grey Epoxy for moisture; Teflon or rubber coatings for delicate surfaces.
Specify whether the pull force is vertical (direct pull) or shear (sliding resistance). Indicate if the magnet will pull across an air gap or through non-magnetic materials.
4. Magnetization Orientation:Specify the magnetization direction: Axial (through the thickness), Radial (across the diameter), or Multi-pole (alternating poles on a single face for maximum holding power).
Aligning manufacturing processes with international safety, environmental, and trade standards.
Our manufacturing and distribution processes comply with international regulatory and environmental standards, ensuring smooth customs clearance and import compliance for global buyers:
A catalog of structural fixing strips, anchor sockets, and heavy-duty precast concrete formwork systems.
Integrated H-profile magnetic shuttering systems designed for automated robotic precast concrete lines, providing quick locking on both sides.
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Heavy-duty steel lifting sockets designed to embed directly into precast concrete slabs for safe rigging and transport.
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Precision cast grouting sleeves engineered for rebar connections, ensuring structural strength in precast wall assemblies.
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High-grade sintered NdFeB rectangular magnet blocks, ideal for clean separation systems and precision sensor configurations.
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Combined reinforcement bar and lifting socket structures, built to withstand heavy mechanical stress during precast stripping.
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Durable, solid steel chamfer strips with built-in magnets. Resists wear and corrosion, producing neat beveled edges on concrete castings.
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Corrosion-resistant ferrite arc magnets, designed for permanent magnet motor stators and magnetic coupling drives.
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Premium reusable magnetic chamfers for structural concrete beams, available in custom lengths and angles for easy stripping.
Get QuoteQCM 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. We have developed numerous new and practical magnetic fixing products with complete specifications, excellent quality, ease of operation, and long service life. We can also customize components to meet specific customer requirements.
Qianci Magnet is a professional magnetic component factory, specializing in the production, research, and development of formwork magnets, magnetic formwork, insert magnets, and magnetic concrete chamferers.
Our business focuses on precast concrete magnetic system solutions, helping concrete producers improve casting efficiency and lower operational costs.
We aim to become a leading global manufacturer and service provider of high-quality magnetic solutions for the precast concrete and industrial automation sectors.
High-power magnetic shuttering boxes designed to clamp steel forms securely onto steel casting beds.
Offers a 1000 kg pulling force, providing reliable clamping for standard thin slab casting assemblies.
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1300 kg capacity magnetic shuttering box, designed for mid-sized precast wall and floor panels.
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A heavy-duty 1800 kg capacity carbon steel magnet box, built to withstand the impact of manual pouring lines.
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A compact 900 kg capacity shuttering box, providing secure hold for small formwork and tight layouts.
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Lightweight magnetic shuttering block, ideal for securing chamfers, blockouts, and auxiliary components.
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2400 kg capacity heavy-industry magnet box, designed for thick exterior walls and high-vibration casting tables.
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2500 kg capacity premium magnet block. Delivers high clamping force for heavy structural precast concrete elements.
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Features a 2100 kg capacity holding force inside a durable carbon steel housing, offering an excellent balance of size and performance.
View DetailsThe newest additions to our catalog, featuring optimized weight-to-pull ratios and enhanced corrosion resistance.
Features a 1600kg capacity magnetic assembly. Made with premium sintered NdFeB magnets for durable, reusable performance.
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This 2100kg pulling force shuttering magnet improves casting speed and concrete element finish quality.
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A popular 2400kg capacity model in Europe. Well-suited for building walls and high-vibration manufacturing tables.
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Designed with a 1300kg vertical tensile force. Ideal for securing side molds of flat floor slabs and precast panels.
View DetailsVerified manufacturing quality, environmental standards, and safety performance certified by leading global agencies.
Stay informed about our latest exhibition schedules, trade shows, and technical breakthroughs in magnetic fixing.
Precast concrete systems: Shuttering molds shape edges and openings on flat surfaces using magnetic fixation, while formwork systems support structural components under heavy wet concrete loads.
QCM, a global manufacturer of magnetic components, will exhibit at UK Construction Week 2025 from May 7th to 9th, showcasing our latest precast concrete magnetic fixing systems at Stand S14.
Detailed technical answers to common questions about industrial pot magnets, holding forces, and environmental limitations.
The holding force is calculated under ideal laboratory conditions: pulling perpendicular to a clean, flat 20mm thick low-carbon steel plate. Real-world holding force decreases due to several factors: rough or uneven contact surfaces, thin steel plates (under 10mm) that cause magnetic saturation, paint or rust layers (which act as air gaps), and shear forces, which are typically only 15% to 20% of the vertical holding force.
A raw round magnet radiates its magnetic field outward in all directions, leaving it vulnerable to chipping and demagnetizing. A pot magnet places the magnet inside a steel cup. This steel cup redirects the magnetic flux from the non-contact face back to the contact face, focusing the magnetic field. This construction increases the vertical holding force and protects the magnet from physical impact.
Standard neodymium (NdFeB) magnets begin to lose strength at 80°C (176°F). This occurs because thermal energy disrupts the alignment of magnetic domains within the alloy. To prevent permanent loss of magnetic strength at higher temperatures, we add heavy rare earth elements like Dysprosium (Dy) and Terbium (Tb). These additions create high-coercivity grades (such as M, H, SH, UH, EH, AH) that operate safely up to 240°C.
Standard catalog items are shipped within 7 to 10 days. Custom configurations—including custom dimensions, specific mounting holes, thread sizes, and custom holding forces—require about 25 to 35 days. This allows time for engineering design, prototype testing, tool setup, vacuum sintering, machining, plating, and final quality control inspections.
We maintain raw material reserves and have long-term supply agreements with primary rare earth refiners in China. This helps stabilize costs and ensures we can deliver under our OEM supply agreements, even when raw material prices fluctuate.