Explore our highly standardized rectangular magnets designed to replace mechanical clamping methods in demanding industrial environments.
Engineered for modular concrete steps and formwork profiles, providing 1000 kg (2200 lbs) of stable adhesive vertical force.
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Optimal structural balance for vertical slip forms. Features robust carbon steel casing with mechanical lever release interface.
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1800 kg high-strength rectangular magnetic block designed to lock massive exterior wall panels down securely during casting.
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Heavy-duty protective shell encapsulating a high-grade NdFeB core. Resistant to physical impact and vibration.
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Compact form factor layout for tight spaces. Ensures stable magnetic flux density distribution on carbon steel platforms.
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Industrial benchmark 2400 kg holding power. Excellent shear-force tolerance against high pressure wet concrete casting.
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Engineered for high-rise precast building panels. Designed to reduce formwork assembly set-up time by up to 70%.
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2100 kg magnetic force layout with integrated press-down switch. Long operational lifespan with rust-proof coating.
Read Technical SpecsThe global demand for high-performance rectangular magnets has experienced exponential growth. Driven by structural shifts in modern manufacturing, logistics automation, and green construction techniques, rectangular magnetic blocks are no longer simple raw components. Instead, they serve as the foundational structural interface for modern automation and infrastructure projects.
In the modern construction sector, the rapid adoption of prefabricated building systems (Precast Concrete) has turned magnets into mission-critical tools. Historically, formwork was secured to steel beds via mechanical drilling or welding. These destructive processes degrade costly steel platforms, leading to elevated capital expenditures. High-force rectangular shuttering magnets provide a non-destructive alternative, preserving the longevity of the steel casting beds and reducing formwork assembly times.
Industrial robots rely on rectangular neodymium magnets (such as Halbach arrays) to perform rapid end-of-arm tooling pickups with minimal power consumption.
Magnetic fixtures enable clean, weld-free assembly lines, matching strict European green building initiatives and US infrastructure modernization laws.
*Watch how QCM Magnet manufactures high-precision magnetic assemblies, optimizing surface flatness and magnetic field projection for global exporters.
A closer look at how rare-earth magnetics, spatial alloy casing, and finite element modeling (FEA) are transforming standard industrial clamping.
The efficiency of rectangular magnetic systems lies in the composition of the rare-earth core. Utilizing high-coercivity anisotropic NdFeB (Neodymium Iron Boron), our engineers maximize the Maximum Energy Product (BHmax). While standard magnets leak magnetic flux lines in all directions, our rectangular assemblies place these permanent magnet blocks inside an engineered carbon steel casing.
This design creates a closed magnetic circuit. By channeling the magnetic loops back through the bottom contact plate, the magnetic flux density is focused directly on the steel mold. This increases the vertical holding force while minimizing external stray magnetic fields that could attract unwanted metal debris on the workshop floor.
To prevent premature demagnetization, our products are engineered in thermal grades like M, H, SH, or UH, enabling them to operate at temperatures ranging from 80°C up to 200°C. This thermal resilience is critical for precast concrete curing chambers where structural elements undergo steam curing.
| Magnet Grade | Remanence (Br) | Coercivity (Hcb) | Max Energy (BHmax) | Max Temp Limit |
|---|---|---|---|---|
| N35 | 1.17 - 1.22 T | ≥ 868 kA/m | 263 - 287 kJ/m³ | 80°C / 176°F |
| N38SH | 1.22 - 1.25 T | ≥ 955 kA/m | 287 - 310 kJ/m³ | 150°C / 302°F |
| N42UH | 1.28 - 1.32 T | ≥ 876 kA/m | 318 - 342 kJ/m³ | 180°C / 356°F |
| Y30BH (Ferrite) | 0.38 - 0.40 T | ≥ 230 kA/m | 27 - 30 kJ/m³ | 250°C / 482°F |
Tailored structural integrations that satisfy safety certifications and regional regulatory codes across global markets.
Compliance with OSHA safety guidelines and ASTM structural standards requires shuttering systems to withstand high lateral shear pressures. Our 4600 lbs systems are configured with custom adaptors for double-faced modular forms to meet these requirements.
With strict Eurocode 2 regulations for precast dimensional accuracy, European factories require magnets with precise positioning systems. High-precision adapters and magnetic chamfers help eliminate edge finishing errors during production.
Driven by rapid urbanization, APAC markets demand fast throughput and automated handling. Our precast formwork systems are fully compatible with robotic gantry pick-and-place lines, enabling 24/7 automated casting operations.
Modern construction and assembly processes require magnetic tools designed for durability. In precast casting, chemical exposure to formwork release agents can degrade magnets.
To address this, our rectangular assemblies feature multi-layer protective barriers. Internal neodymium magnets are nickel-copper-nickel (Ni-Cu-Ni) plated, or coated in specialized black epoxy. The outer casing is made of heavy-duty hot-rolled carbon steel, or high-grade stainless steel to resist rust and chemical wear.
Additionally, the integrated mechanical spring-release system is designed for simple, fast operation. By pressing the top button, the user engages the magnetic circuit against the steel bed. Lifting the button via an ergonomic release tool disengages the system for quick reconfiguration.
Your technical partner for high-precision, industrial-grade magnetic fixing and structural solutions.
QCM Magnet (Qianci 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.
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.
All products undergo ISO 9001 quality system testing and pull force calibration before dispatch.
Detailed engineering answers covering shear forces, dynamic loads, air gaps, and long-term maintenance protocols.
In industrial applications, the shear force (lateral sliding force) is typically 20% to 35% of the vertical holding force. For example, a shuttering magnet rated at 2100 kg vertical pull will resist sliding forces up to approximately 420 kg to 735 kg on a dry, clean steel surface. Factors like platform roughness, oil coatings, and surface concrete dust can reduce this coefficient of friction. To ensure structural safety under dynamic concrete casting loads, engineers should apply a safety factor of 1.5 to 2.0 when calculating magnetic capacity.
Magnetic force decreases exponentially as the air gap increases. A small air gap of only 1 mm (caused by paint, concrete residue, rust, or uneven surfaces) can reduce the holding force of a neodymium magnet by up to 50%. A 2 mm gap can reduce the remaining holding force to less than 20%. Because of this, it is essential to keep the steel casting table clean. Polishing the contact surface and applying thin protective release oils are recommended practices for maintaining magnetic performance.
Yes, provided the proper grade of neodymium is selected. Standard N-grade NdFeB magnets demagnetize permanently if exposed to temperatures above 80°C (176°F). For steam curing, we construct assemblies using SH (Super High) or UH (Ultra High) grade magnets. These grades withstand temperatures up to 150°C and 180°C respectively without irreversible magnetic loss, ensuring consistent holding force throughout the concrete curing cycle.
Operators should clean the contact plates using steel scrapers or specialized sanders after every cast to remove cured concrete paste. Applying a thin coating of anti-rust oil prevents oxidation. To protect the mechanical core, avoid direct hammer blows to the magnet housing; instead, use designated release levers to activate and deactivate the magnetic force.
A Halbach Array is a specialized arrangement of permanent magnets that rotates the magnetic field vector. This arrangement reinforces the magnetic field on one side of the assembly while reducing the field on the opposite side to near zero. In rectangular magnetic designs, a Halbach array provides strong, concentrated holding force on the working face while shielding the top surface from attracting magnetic dust or interfering with nearby electronic control systems.
Stay informed on the latest advancements in precast concrete systems and global trade exhibitions.
Precast concrete systems require distinct solutions: shuttering molds shape edges and openings on flat surfaces using magnetic fixation, while mold profiles lock structural forms in place. Discover how choosing the correct system matches specific project tolerances.
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QCM, a global leader in magnetic components, will participate in UK Construction Week 2025. From May 7th to 9th, at Stand S14, our technical team will showcase next-generation magnetic fixings and automated formwork solutions designed for the European market.
Read Exhibition PreviewComplete your precast concrete tooling setup with these high-performance magnetic and structural accessories.
Integrated steel formwork magnetic block designed for rapid placement and mechanical release. Ideal for automated setups.
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Durable, high-precision beveling strip designed to create smooth beveled edges on precast concrete wall panels.
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Extra-strong NdFeB recovery magnet with rugged protective steel casing for heavy recovery and industrial salvage.
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Precision-aligned magnetic segments configured for high-performance motors, generators, and specialized industrial tools.
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Integrated magnetic shuttering rail system designed to maintain panel thickness tolerances during casting.
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Industrial-grade adapters engineered to mount shuttering magnets to wooden, steel, or aluminum formwork profiles.
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Dual-sided active magnetic surfaces designed for retrieval. Yields high holding force on both faces.
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High-grade isotropic and anisotropic ferrite ring magnet blocks, optimized for acoustic speaker applications.
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High-load steel pin lifting system for transporting and positioning cured precast concrete components safely.
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Magnetic insert templates designed to locate and secure internal M10 lifting sockets to the steel bed during casting.
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Tough steel clamping assemblies designed to lock formwork rails directly to shuttering magnet housings.
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Flexible urethane magnetic chamfering strips designed to produce clean, sharp bevel finishes on steel casting tables.
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Heavy-duty magnetic fixtures designed to hold conduits and junction boxes securely in place against formwork surfaces.
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Full length modular edge shuttering system featuring integrated magnetic elements for high production volume precast lines.
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Medium-high capacity neodymium magnet block featuring an active spring-loaded release system for thin-shell precast elements.
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Heavy-duty precast wall system. Integrates steel forms and strong NdFeB magnets to secure deep structural panels.
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