Shuttering magnet for concrete formwork

Shuttering magnets are efficient tools in precast concrete industry, using powerful neodymium magnets in steel casings for secure formwork attachment without damaging surfaces. They offer quick setup, preserve surfaces, are versatile, have high load capacity, and are durable with proper maintenance.

product details

Shuttering magnets are specialized tools used in the precast concrete industry to secure formwork during the casting of concrete elements. These magnets provide a modern, efficient alternative to traditional methods such as bolting or welding, which can damage both the formwork and the casting surfaces.


Model	L(mm)	L1(mm)	W(mm)	h(mm)	M	(g) Weight	(kg) Breakaway
QCM450	170	135	60	43	M12*30	1800	450
QCM600	170	142	60	43	M12*30	2500	600
QCM900	280	244	60	43	M12*30	2800	900
QCM1600	290	240	120	60	M16*30	6500	1600
QCM1800	320	270	120	60	M16*30	7200	1800
QCM2100	320	270	120	60	M16*30	7600	2100
QCM2400	320	270	120	60	M16*30	7600	2400
QCM3000	320	270	140	60	M16*30	7800	3000

How Shuttering Magnets Work

Shuttering magnets consist of a robust assembly that typically includes:

- Neodymium Magnets: These are powerful permanent magnets that provide a strong magnetic force, essential for holding the formwork securely in place.

- Steel Casing: The magnets are encased in a steel shell that serves multiple purposes:

- It protects the magnets from damage.

- It helps to concentrate the magnetic force at the base, maximizing adhesion to ferrous surfaces.

- It allows for easy handling and positioning of the magnets.

- Control Mechanism: Most shuttering magnets feature an ON/OFF switch or button. When activated, this mechanism engages the magnetic force, allowing the magnet to hold the formwork tightly against a steel casting table. When deactivated, it allows for easy repositioning or removal of the magnet without excessive force.

Operation Steps

1. Placement: The shuttering magnet is positioned on a clean steel surface where formwork is to be installed.

2. Activation: By pressing a button on top of the magnet, the magnetic force is activated. This creates a strong bond between the magnet and the steel surface.

3. Concrete Pouring: Once secured, concrete can be poured into the formwork without fear of it shifting or moving under pressure.

4. Deactivation: After the concrete has set, a release tool or lever can be used to deactivate the magnet, allowing for easy removal from the casting table.

5. Storage and Maintenance: Post-use, it’s recommended to clean and lubricate the magnets to prevent rust and ensure longevity.

2500 kg precast concrete magnet application scenario diagram

Advantages of Shuttering Magnets

- Efficiency: They significantly reduce setup time for formwork compared to traditional methods.

- Surface Preservation: Since no welding or bolting is required, they help maintain the integrity and finish of both the formwork and casting surfaces.

- Versatility: Shuttering magnets can be adapted for various types of formwork materials including wood, aluminum, and steel.

- High Load Capacity: Depending on their design, these magnets can hold substantial weights (often ranging from 450 kg to over 2500 kg), making them suitable for large-scale precast applications.

- Durability: With proper care, shuttering magnets have a long service life and can be reused multiple times across different projects.

In summary, shuttering magnets represent an innovative solution for securing concrete formwork in precast construction, enhancing efficiency and reducing potential damage associated with traditional fastening methods.