Engineered for high-volume automated manufacturing lines, optimized with anti-corrosion shells and reliable NdFeB internal configurations.
Designed specifically for Nordic wall-slab production line automation. Integrates a highly responsive push-button on/off mechanism and robust steel casing for maximum wear resistance.
Technical Specs
Constructed from hardened carbon steel. Delivers 2100 kg of pull force to secure heavy timber or steel perimeter formwork in sub-zero casting conditions.
Technical Specs
A flagship model for heavy precast columns and beam structures. Offers 2400 kg of holding force with custom adaptors for automated robotic handles.
Technical Specs
Optimized for lightweight wall panels and structural filigree slabs. Built with highly concentrated magnetic circuits for stable vertical shear force resistance.
Technical SpecsFinland's building sector stands as one of the most advanced globally regarding precast concrete integration. Due to prolonged, harsh sub-zero winter temperatures, traditional on-site concrete pouring is highly limited. Consequently, over 85% of multi-story buildings, residential blocks, and industrial complexes in Finland rely heavily on manufactured prefabricated panels.
This industrial reliance places extreme performance expectations on magnetic clamping systems. Shuttering beds operate inside highly climate-controlled plants where rapid cycles of placement, concrete vibration, and steam curing occur. Shuttering magnets must not only withstand powerful vibratory forces but must also resist thermal expansion/contraction and chemical attack from highly alkaline cement paste.
Additionally, with Finland's strict adherence to the Eurocode 2 structural concrete design frameworks and the national SFS standards, dimensional tolerances must be maintained within millimeters. Any sliding or misalignment of formwork during the high-frequency vibration phase leads to rejected batches—costing manufacturers thousands of euros. Our specialized Neodymium (NdFeB) magnetic systems provide a slip-free hold directly on steel casting tables, completely bypassing the need for welding or mechanical drilling.
Engineered to operate seamlessly under rapid temperature shifts, from -20°C storage to +80°C steam curing conditions without permanent flux degradation.
Fully enclosed stainless steel housings protect the high-performance NdFeB magnet blocks from moisture, concrete slurry, and physical impact.
Directly compatible with modern Finnish automated shuttering systems, including robotic side-rail manipulators and automated crane grabs.
Maximum Holding Force Capacity
Standard High-Temp Resistance Threshold
Reusability & Zero-Damage Bed Protection
Extreme Precision Alignment Control
An in-depth look at shear resistance, material science, and the physics of NdFeB clamping systems.
A common misconception in precast concrete magnetic procurement is evaluating a shuttering magnet solely by its nominal vertical pull force (e.g., 2100 kg / 4600 lbs). In real-world factory applications, the main force acting on the magnet is the lateral shear force generated by the hydrostatic pressure of pouring concrete. The shear holding force is determined by the formula:
Where μ represents the static friction coefficient between the magnetic steel base and the casting bed. On clean, slightly oiled steel tables, μ typically ranges from 0.22 to 0.30. This means a 2100 kg vertical pull magnet offers approximately 462 kg to 630 kg of resistance against sliding. To prevent formwork shifting, QCM optimizes the base surface roughness and uses specialized flux concentrators to maximize μ, ensuring high shear-resistance safety margins.
For standard precast lines where ambient and bed temperatures do not exceed 80°C, Neodymium-Iron-Boron (NdFeB) magnets provide the highest cost-to-performance ratio and localized flux density. However, for specialized autoclaved concrete lines or steam curing beds where temperatures consistently climb between 120°C and 200°C, NdFeB magnets risk rapid, irreversible thermal demagnetization. Under these conditions, QCM integrates Samarium Cobalt (SmCo) magnets. While SmCo magnets possess slightly lower ambient magnetic energy than NdFeB, they maintain outstanding magnetic stability and resist corrosion in high-humidity, high-heat environments without structural degradation.
As a leading developer, QCM combines raw material sourcing security with high-tech automated machining. By relying on our comprehensive domestic Chinese rare-earth supply chain, we remain insulated from the severe raw material price spikes that plague European fabricators. Our automated Industry 4.0 manufacturing plant utilizes high-precision CNC mills, robotic laser welders, and individual magnetic testing jigs. Every shuttering magnet shipped to Finland is individually calibrated and undergoes strict tension tests to ensure that the holding force matches the rated capacity exactly.
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.
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.
QCM products comply with strict international industrial standards, ensuring high performance safety for European construction sites.
Browse our verified range of high-energy neodymium and rare earth samarium cobalt magnet components, customized for high-stress applications.
Stay informed about the latest trends in magnetic fixation and precast manufacturing innovations.
Precast concrete systems: Shuttering molds shape edges and openings on flat surfaces using magnetic fixation, while specialized formwork magnets handle complicated structural challenges in modular home production.
QCM, a global leader in magnetic components, will participate in UK Construction Week 2025 from May 7th to 9th, demonstrating next-generation magnetic fixings to European partners.
Answering structural engineers' and procurement directors' most common questions regarding magnet durability and installation.
The vertical pull force refers to the power required to detach the magnet perpendicularly from a clean steel table. Slide resistance (shear holding force) is governed by friction. Because the friction coefficient of a steel table is typically 0.2 to 0.3, the actual slide resistance is roughly 20-30% of the nominal pull force. Keep this calculation in mind when sizing your forms.
Standard neodymium magnets undergo permanent demagnetization if exposed to temperatures above 80°C. In Finland, precast tables frequently undergo steam curing at elevated temperatures. We build our shuttering magnets using high-coercivity NdFeB grades (SH or UH class) or Samarium Cobalt (SmCo) to guarantee zero loss of flux during typical concrete heating cycles.
Slurry accumulation on the bottom contact surface is the most common cause of holding force loss. A gap of just 1 mm can reduce the magnetic force by up to 50%. We recommend routine cleaning of the magnet bottom plate with a dedicated steel scraper, light application of release oil to prevent adhesion, and regular mechanical testing of the release button.
Yes. Our shuttering magnet boxes (1600kg, 2100kg, and 2500kg series) are built with standardized hook channels and adapter holes. These enable automatic placement, activation, and removal by robotic manipulators in automated carousel plants.
Thanks to our robust logistics network, we offer flexible shipping options. Airfreight orders for emergency maintenance reach Finland in 7-10 days, while bulk sea freight shipments typically arrive at the Port of Helsinki or Kotka within 35-40 days, complete with automated custom clearances and test certificates.
Each production run goes through rigorous quality checks, including automated gaussmeter testing, shear force simulation, and hot-air chamber thermal testing. We supply a full material test report (MTR) and CE compliance certificate with every export container.
Get in touch with our engineering team for customized calculations, structural designs, and wholesale pricing for the Finnish precast concrete market.
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