Explore our industrial-grade strong magnetic solutions, precast system assemblies, and magnetic formwork tools engineered to optimize efficiency.
Analyzing the strategic integration of strong industrial magnets in contemporary civil engineering and advanced manufacturing infrastructures.
In modern civil construction, time-to-market and precision are paramount. High-performance shuttering magnets (ranging from 600kg/1320 lbs to 2500kg/5500 lbs holding forces) offer temporary anchoring of formwork without the destructive necessity of drilling into the steel casting beds. This preserves casting plate lifespan, reduces labor overhead by up to 40%, and facilitates automated robotic casting configurations.
As industries pivot towards decarbonization and electrification, strong permanent magnets (specifically Sintered NdFeB N35 to N52 and Samarium Cobalt SmCo) represent the vital core of high-efficiency EV traction motors, industrial servo drives, and offshore wind generator turbines. Supply security and material stability remain crucial metrics for global OEMs.
Overhead magnetic separators and magnetic lifting rigs utilize custom-configured rare-earth magnet circuits to extract iron contaminants or move structural steel plates. The optimization of flux concentration through tailored pole configurations (such as Halbach arrays) is key to increasing lift-to-weight ratios safely and reliably.
A common misconception in procurement is that magnetic holding force relies solely on raw Neodymium grades (e.g., N35 vs N52). In commercial applications like shuttering magnets for precast formwork, the physical housing and circuit play a primary role. A raw magnet of N35 grade in a simple block config may yield limited direct pull force. However, when integrated into a steel shunt assembly (known as a Pot Magnet or Magnetic Circuit), the magnetic flux loops are compressed and directed entirely out of the active surface.
Our engineered systems leverage this exact principle. By wrapping high-grade NdFeB inserts inside robust carbon steel housings and sealing them against moisture with urethane coatings or stainless-steel casings, we produce assemblies that achieve vertical tensile pulling capabilities up to 5500 lbs (2500 kg). These blocks are designed to lock firmly against steel tables via manual or robotic mechanical push buttons, activating and deactivating the internal circuit instantaneously.
Qianci Magnet (QCM 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. Our strategies aim to position QCM as a global leading manufacturer and excellent service provider of magnetic solutions for the precast concrete industry.
Underpinned by rigorous engineering validations, material safety protocols, and international manufacturing certifications.
Neodymium-Iron-Boron (NdFeB) magnets are subject to thermal demagnetization depending on their coercivity ratings. In concrete curing processes, where steam heating is often utilized to accelerate concrete drying times, temperature thresholds are critical:
Failure to specify the correct thermal grade can result in irreversible flux losses, rendering the shuttering magnet ineffective over repeated cycles. As a specialized supplier, QCM validates every production batch under simulated heat loads to guarantee holding stability.
Precast casting bays represent harsh chemical and mechanical environments. Water, concrete slurry, chemical release agents, and physical impact require that strong magnets be thoroughly protected. We utilize three core casing systems:
Engineered for extreme longevity, these shuttering magnets and system accessories improve concrete surface quality and cycle speed.
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.
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The required holding force depends heavily on the height of your concrete elements, casting speed, and concrete density. Generally, for thin slabs (under 100mm), 600kg to 1000kg shuttering magnets are sufficient. For wall panels (100mm-200mm) and high vertical forms, magnets with 1300kg to 2100kg holding force are recommended to counteract the hydrostatic pressure of fresh concrete.
Formwork magnets refer to the broader range of magnetic fixing solutions used to hold molds, whereas Shuttering Magnets typically specify the switchable magnetic boxes (like QCM's button magnets) that attach to steel formwork tables via adapter plates. Shuttering magnets allow fast, temporary clamp activation and deactivation.
Neodymium magnets are highly sensitive to air gaps. Any dirt, concrete dust, or rust on the steel casting table creates a microscopic air gap, which drastically reduces the holding force. For example, a 0.5mm air gap can cut the magnet's holding capacity by 30% to 50%. It is critical to keep the surface of the magnetic core clean and flat during operation.
QCM tests 100% of manufactured magnetic boxes on a hydraulic vertical pull-tester. Our facilities are ISO 9001 certified, and we provide material certification, force curves, and anti-demagnetization certificates upon request, ensuring compliance with global construction safety standards.
Stay informed about high-performance magnets, upcoming global exhibitions, and engineering trends in modular construction.
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QCM, a global leader in magnetic components, will participate in UK Construction Week 2025. From May 7th to 9th, at NEC Birmingham, showing advanced precast magnets...
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