Type: Permanent Magnets
Composite: Neodymium Magnet
Shape: make as order
Application: Industrial Magnet
Coatings: Ni, Zn, gold, silver, copper, epoxy, and so on
Tolerance: +/-0.03 to +/-0.15
Shapes: Arc/Disc/Bar/Block…
Grade: N3N35M-N52M,N35H-N50H,N33SH-N45SH
Sizes: customized
magnetize direction: Customized
delivery: by sea, by air, or by express
Temperature: The max operation temp is up to 230 d
Customizable Magnetic Closures
Description
High-Strength NdFeB Magnet for Bag & Sleeve Closures | Custom Sizes Available
Customizable magnetic closures for Bag and Sleeve Closures
Material: NdFeB (Neodymium)
Size: 3mm Width x 2mm Thickness (300mm/1 Meter Length),Customized available
Grade: N35
Coating: Nickel-plated
Features: Waterproof, shock-resistant, bendable, and cuttable. The magnet’s heat-shrink tube coating offers protection while maintaining strong magnetic pull. Easy-to-use, click-close feature.
Applications: Ideal for bag closures, purse closures, sleeve closures, and more. This strong magnetic closure creates a crisp, satisfying “click” sound, ensuring secure, seamless fastening for pouches, bags, and sleeves.
How does it work, see our youtube video here!
Type | Customizable magnetic closures |
Composite | NdFeB Magnet |
Shape | Disc,Cylinder,Block,Ring,Countersunk,Segment,Trapezoid, |
Ir-regular shapes and more custom shapes | |
Application | Industrial Magnet |
Magnetize direction | Customized |
Size | Customized |
Coating | Ni, Zn, gold, silver, copper, epoxy, and so on |
Tolerance | +/-0.03 to +/-0.15 |
Working temperature | The max operation temp is up to 230 degree centigrade |
Delivery | By sea, by air, or by express |
Max | Grade |
Working | N33-N52 80°C |
Temperat ure | N35M-N45M 100°C |
N33H-N50H 120°C | |
N33SH-N45SH 150°C | |
N30UH-N42UH 180°C | |
N30EH-N38EH 200°C | |
N28AH-N33AH 230°C |
Why Choose This Magnet?
- Superior Magnetic Strength: Crafted from high-quality NdFeB material, this magnet offers exceptional magnetic strength, ensuring a secure closure for various applications.
- Versatile Design: This magnet closure is encased in a heat-shrink tube, offering durability, waterproofing, and shock-resistance. It can be bent and cut to fit specific needs.
- Simple Use: Unlike traditional magnetic snaps, this magnetic closure allows the two sides to snap together effortlessly, providing a solution similar to a zipper but with a quicker, more efficient closing mechanism.
- Customizable Options: Richarms provides customizable sizes, grades, and tube lengths for the magnetic closures to meet your unique product specifications.
Packaging:
Magnet in heat-shrink tube coating

Small unit magnets available in round (radial magnetization) and square (thickness magnetization) shapes, offering customizable magnetic properties.

NdFeB magnets encased in heat-shrink tubing for enhanced protection and easy handling, offering flexibility for customized closures.

NdFeB magnet encased in heat-shrink tubing, offering durability, waterproofing, and flexibility for a variety of applications.
Richarms supplies high strength hidden magnet for bag and purse pouches closures. These hidden magnet packed in long tube can be used as pocket closures. Our hidden magnet come in different strength and range in many sizes in both round and rectangular shapes.
Compared with a set of traditional magnetic snap, this magnetic closure packed in tube design offer a full seal solution as zipper does. It’s better than a zipper for it’s smart to close by attracted to the other side when the user just easy make the pouches both side closer, and the customer can be free from getting stuck.
In the above picture, magnet material is N45, size is 3mm diameter and 10mm length, diameter magnetized. Magnet size, grade and the tube length can be made as per your order.
The heat-shrink tube can be transparent, natural color, black, or even customized to match your specific design needs. This added customization provides enhanced aesthetic options and allows for tailored branding and functional protection.

Various heat-shrink tube options for Bar NdFeB magnets, including transparent, natural, black, and customizable colors for tailored design.