Magnetic Chamfer Strips | SDM Magnetics Co., Ltd.

Ι What Are Magnetic Chamfer Strips?

Magnetic chamfer strips are a type of precast concrete magnet used to form smooth, beveled edges (chamfers) on precast elements such as wall panels, beams, and columns. These magnetic chamfer strips typically use Neodymium or rubber magnets to attach firmly to steel formwork or casting tables without screws, welding, or adhesives, keeping them in the correct position during pouring and vibration.

By removing sharp corners that can chip or crack during handling and transport, magnetic chamfer strips improve both the durability and appearance of precast concrete components. They also speed up setup, as they can be positioned in seconds and reused many times, reducing labor and material waste compared with traditional wooden or plastic chamfers. Compatible with different formwork systems and project requirements, magnetic chamfer strips are a practical choice for precast factories looking to increase efficiency and achieve consistent, professional edge finishes.

Types of Magnetic Chamfer Strips

Magnetic chamfer strips are generally available in two main types—magnetic rubber and magnetic steel—each suited to different precast concrete applications. These magnetic chamfer strips differ in base material, magnet configuration, and profile shape, giving designers and producers flexibility to match specific formwork and edge requirements. Below is an overview of the main types and where they work best:

Type	Features	Applications
Magnetic Steel Chamfer	Constructed from rigid steel with embedded Neodymium magnets for strong adhesion. Available in triangular (45° bevel) or trapezoidal shapes for precise, heavy-duty applications.	Straight-line beams, columns, high-load formwork.
Magnetic Rubber Chamfer	Made of flexible rubber magnet; lightweight and adaptable to curved or irregular formwork. Available in triangular (e.g., 10x10mm) or trapezoidal profiles for standard or grooved edges.	Curved wall panels, high-volume reuse, lightweight setups.

Both types can be made with single- or double-sided magnetization, so they can attach to one or two steel surfaces (for example, the casting table and side form). This flexibility allows magnetic chamfer strips to meet a wide range of precast concrete needs, from clean architectural edges to functional grooves.

Magnetic Steel Chamfer

Magnetic Rubber Chamfer

Key Advantages of Magnetic Chamfer Strips

Magnetic chamfer strips offer several practical advantages for precast concrete production, improving efficiency, edge quality, and overall cost performance:

Fast installation: Attach quickly to steel formwork using rubber or Neodymium magnets, eliminating screws and adhesives and streamlining setup.
Improved edge quality: Form smooth, chip-resistant beveled edges on precast elements such as panels and beams, enhancing appearance and reducing repair work.
Durable and reusable: Designed to withstand repeated use; rubber chamfer strips stay flexible, while steel chamfers handle tough site and factory conditions.
Cost savings: Lower material waste and labor costs by replacing disposable wood or plastic chamfers with reusable magnetic chamfer strips.
Versatile design: Available in triangular and trapezoidal profiles, magnetic rubber and steel chamfers fit both curved and straight formwork for a wide range of projects.
Eco-friendly option: Reduce waste from single-use chamfers and support more sustainable precast concrete production.

Specifications of Magnetic Steel Chamfer Strips

Model	L (mm)	W (mm)	Magnetized length	Surface
MC-10A	10	14	50%/100%	Single side
MC-10B	10	14	50%/100%	Double side
MC-10C	10	14	50%/100%	Single side
MC-15A	15	21	50%/100%	Single side
MC-15B	15	21	50%/100%	Double side
MC-15C	15	21	50%/100%	Single side
MC-20A	20	28	50%/100%	Single side
MC-20B	20	28	50%/100%	Double side
MC-25A	25	35	50%/100%	Single side
MC-25B	25	35	50%/100%	Double side

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