High-Strength Customizable Magnetic Zipper Closures for Bag & Sleeve | Custom Sizes Available

Magnetic Zipper Closure (Flexible Magnetic Closure Strip)

Magnetic Zipper Closure (Flexible Magnetic Closure Strip)

Material: NdFeB (neodímio)
Tamanho: 3mm Width x 6/10mm Thickness ，Customized length available
Grade: N35 / N45/ N52
Coating: Nickel-plated
Features: Waterproof, shock-resistant, bendablee 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, fechamentos de bolsas, 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!

• One-hand close
• No snagging
• Cleaner look
• Custom length

Why Choose This  Magnetic Zipper Closure?

• Superior Magnetic Strength: Crafted from high-quality NdFeB material, this magnet offers exceptional força magnética, ensuring a secure closure for various applications.
• Versatile Design: Isso magnet closure is encased in a heat-shrink tube, offering durability, waterproofinge shock-resistance. It can be bent e cut to fit specific needs.
• Simple Use: Unlike traditional magnetic snaps, this fechamento magnético allows the two sides to snap together effortlessly, providing a solution similar to a zipper but with a quicker, more efficient closing mecanismo.
• Customizable Options: Armas ricas provides customizable sizes, grades, and tube lengths for the fechos magnéticos to meet your unique product specifications.

Embalagem:
Magnet in heat-shrink tube coating

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

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

Magnetic Zipper Closure 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.

O heat-shrink tube pode ser transparent, natural color, pretoou mesmo personalizado to match your specific design needs. This added customization provides enhanced aesthetic options and allows for tailored branding e functional protection.

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

Structure Options: 3 Magnetic Zipper Closure Layouts (Choose by “Strength vs. Flexibility”)

Our magnetic zipper closure strip can be built with three internal layouts. All options use a protective outer tube (EVA/TPU/Plastic tube), while the inside core determines closing strength, flex feel, and how “forgiving” it is on curved openings.

Option A — Alternating (1 Magnet + 1 Silicone Spacer)

Magnetic zipper closure cross-section with two magnets then silicone spacer (MM–S repeat) inside a flexible tube.

Best for: softer feel, smoother bending, curved openings
Layout: M | S | M | S | M | S ...
Why buyers choose it:

• More flexible, easier to follow curves
• Softer hand-feel due to silicone spacing
• Great balance for pockets / apparel openings / sleeve edges

Typical core examples:

• Magnet: 3×6mm N35 ou 3×10mm N52
• Spacer: 3×10mm silicone
• Standard OD: ~3.5mm; length 100mm / 160mm / custom

Option B — Full-Magnet (Continuous Magnets)

Magnetic Zipper Closure Structure B (Full-Magnet Core)

Best for: maximum holding force, straight openings, premium “snap-close”
Layout: M | M | M | M | M ...
Why buyers choose it:

• Strongest attraction along the entire length
• Feels most like a “magnetic zipper” when closing
• Ideal for bag openings, structured casese clean-edge closures

Typical core examples:

• Magnet: 3×6mm N35 ou 3×10mm N52
• Standard OD: ~3.5mm; length 100mm / 160mm / custom

Option C — Grouped (2 Magnets + 1 Silicone Spacer)

Magnetic Zipper Closure Structure C (M–S Alternating Core)

Best for: strong closing + extra flexibility (balanced “power & comfort”)
Layout: M | M | S | M | M | S ...
Why buyers choose it:

• Strong “closing points” from paired magnets
• Silicone gaps give better flexibility than full-magnet design
• Great for fashion goods where both hold + comfort matter

Typical core examples:

• Magnet: 3×6mm N35
• Spacer: 3×20mm silicone
• Standard OD: ~3.5mm; length 100mm / 160mm / custom

Quick Selection Guide

• Need maximum strength? → Option B (Full-Magnet)
• Need best flexibility/soft feel? → Option A (Alternating)
• Need a balanced “strong + flexible”? → Option C (Grouped)

How to Specify for a Quote (Copy & Send)

Please send us:

1. Aplicativo (bag opening / laptop sleeve / pocket / apparel)
2. Comprimento (e.g., 160mm or custom)
3. Core option (A/B/C)
4. Magnet size & grade (e.g., 3×10mm N52)
5. Outer tube (TPU/EVA/Plastic tube) + color
6. Bonding method (heat press / heat weld / heat lamination)

Magnetic Zipper Closure FAQ:

• Can it be cut? Yes, anywhere.
• Washable? Yes, with tube, waterproof.
• Minimum order? No
• Sample lead time? 7-10 days

Material: NdFeB (neodímio)
Opções de formato: Disco, Cilindro, Bloqueio, Anel, Countersunk, Segmento, Trapezoidale mais formas personalizadas
Direção da magnetização: Espessura Magnetizado ou Magnetizado radialmente (personalizável)
Opções de revestimento: Níquel (Ni), Zinco (Zn), Ouro, Prata, Cobre, Epóxi e mais
Tamanho e tolerância: Tamanhos personalizados com tolerâncias que variam de +/-0,03 mm a +/-0,15 mm
Temperatura de trabalho: Temperatura máxima de operação de até 230°C com base na nota
Entrega: Pedido pequeno disponível, Disponível por mar, arou expresso entrega

Os ímãs de NdFeB são embalados com segurança em pequenas caixas brancas, garantindo transporte seguro e fácil manuseio.

Embalagem:

Os ímãs de NdFeB passam por um cuidadoso processo de embalagem de desmagnetização, que envolve camadas de caixas de ferro, espuma e caixas de papel para garantir um transporte seguro.

Entendendo as duas direções de magnetização dos ímãs de NdFeB: Magnetizado por espessura e magnetizado radialmente.

Direção da magnetização:
Espessura Magnetizado
Magnetizado radialmente

Principais características dos ímãs de NdFeB do segmento:

• Personalizável para aplicações industriais: Nosso Ímãs de NdFeB de segmento são altamente versáteis e podem ser personalizado em termos de tamanho, forma, direção de magnetização e revestimento. Eles são projetados para atender às suas necessidades específicas de aplicação em configurações industriais.
• Alto desempenho e resistência à temperatura: Esses ímãs oferecem excepcional força magnética e pode suportar uma ampla gama de temperaturas, com alguns graus chegando a até 230°C em ambientes de alta temperatura. Perfeito para aplicações em motores, sensorese dispositivos eletrônicos.
• Disponível em vários formatos: Escolha entre uma ampla variedade de formatos, como discos, cilindros, blocose segmentos, com projetos personalizados disponíveis para requisitos mais especializados. Se você precisa de um trapezoidal, anelou escareado ímã, temos tudo o que você precisa.
• Entrega eficiente: Com opções de entrega flexíveis, garantimos o envio pontual por meio de mar, arou expresso para atender aos prazos de seu projeto.

Por que escolher nossos ímãs de NdFeB de segmento?

• Magnetização personalizada: Nosso Ímãs de NdFeB de segmento pode ser magnetizado em diferentes direções, incluindo espessura ou magnetização radialpara se adequar à sua aplicação específica.
• Durável e confiável: Com uma variedade de revestimentos, como níquel, zinco, ouroe epóxiEsses ímãs são protegidos contra corrosão, garantindo durabilidade a longo prazo.
• Força e eficiência superiores: Conhecido por suas fortes propriedades magnéticas, Ímãs de NdFeB proporcionam excelente desempenho em uma ampla gama de setores, incluindo eletrônicos, automotivo, fabricaçãoe energia.

Bar NdFeB magnets pode ser encased in heat-shrink tubing, providing extra protection. Este heat-shrink wrap makes the magnets waterproof, shock-resistante oxidation-proof, ensuring they remain in optimal condition even in harsh environments. This added layer of protection increases their durabilidade e reliability para long-term use in a wide range of applications.

Os ímãs de NdFeB são embalados com segurança em pequenas caixas brancas, garantindo transporte seguro e fácil manuseio.

Embalagem:

Os ímãs de NdFeB passam por um cuidadoso processo de embalagem de desmagnetização, que envolve camadas de caixas de ferro, espuma e caixas de papel para garantir um transporte seguro.

Entendendo as duas direções de magnetização dos ímãs de NdFeB: Magnetizado por espessura e magnetizado radialmente.

Key Features of Bar NdFeB Magnets:

• Customizable for Various Applications: Nosso Bar NdFeB magnets are highly customizable in size, shape, magnetization direction, and coating. Whether you need smaller sizes para Bloqueio de RFID, larger sizes para industrial machinery, or specific magnetization patterns, we can meet your needs.
• High-Strength Performance: Esses NdFeB bar magnets are known for their high magnetic strength, making them ideal for applications like bag closures, purse clips, journal coverse IC parts.
• Durável e confiável: With a variety of protective coatings like níquel ou epóxi, these magnets are designed to last, offering durabilidade a longo prazo e resistance to corrosion.
• Entrega eficiente: We offer flexible delivery options, ensuring you receive your Bar NdFeB magnets quickly and securely. Choose from mar, arou expresso shipping to meet your project deadlines.

Applications of Bar NdFeB Magnets:

• Bag Closures: Perfect for use in fechos magnéticos para bags, pursese mochilas, ensuring easy-to-use, secure fastening.
• Purse Clips & Journal Covers: These magnets are ideal for securing purse clips e journal covers, offering a sleek, reliable solution.
• IC Parts: With customizable sizes and strength, Bar NdFeB magnets are great for use in IC parts, ensuring precision and high performance in sensitive equipment.

Why Choose Our Bar NdFeB Magnets?

• Versatile Customization: Choose the perfect size, shapee magnetization direction for your specific application needs.
• Superior Strength: Known for their exceptional magnetic power, Bar NdFeB magnets offer high holding force in various industrial applications.
• Cost-Effective Solutions: Get high-performance magnets at competitive prices, ideal for wholesale orders and bulk production.

Embalagem:

Direção da magnetização:
Espessura Magnetizado
Magnetizado radialmente

How to make stronger power button?
– Magnets in same size, material better, power stronger
– Magnet in same material, size bigger, power stronger

Which silver color is better? Zinc or Nickel Plating?
– Zinc will be at lower cost
– Nickel will be shiny, and easy to pull out

What’t packaging will Richarms offer?
– for big size magnet, we might suggest to add divider so that customer will easy to pull out each one
– Standard Packaging is plastic bag + box + carton
– Degaussing Packaging is plastic bag+box+form box+carton, for some voyage ask no magnetic power tested on the outer box

Want quick quote or free sample, pls consult our sales teams 

Cylinder magnet can be encased in heat-shrink tubing, providing extra protection. This heat-shrink wrap makes the magnets waterproof, shock-resistante oxidation-proof, ensuring they remain in optimal condition even in harsh environments. This added layer of protection increases their durabilidade e reliability for long-term use in a wide range of applications.

Uncoated raw strong cylinder magnet showcasing its robust NdFeB core for custom applications.

Embalagem:

Os ímãs de NdFeB são embalados com segurança em pequenas caixas brancas, garantindo transporte seguro e fácil manuseio.

Os ímãs de NdFeB passam por um cuidadoso processo de embalagem de desmagnetização, que envolve camadas de caixas de ferro, espuma e caixas de papel para garantir um transporte seguro.

Entendendo as duas direções de magnetização dos ímãs de NdFeB: Magnetizado por espessura e magnetizado radialmente.

Principais recursos:

• Waterproof: The ABS coating provides reliable water resistance for outdoor and harsh environments.
• Shatter-Proof & Rust-Proof: Durable encapsulation protects the magnet against impact and corrosion.
• Versatile Use: Suitable as a raw magnet or as an encapsulated solution for hidden magnet applications in bag hardware and other custom products.
• Eco-Friendly: Made with environmentally conscious ABS material, ensuring a sustainable and robust product.

Overview:
Our Encapsulated Strong Magnet Cylinder offers exceptional magnetic strength in a compact design. Engineered from premium NdFeB and encapsulated in eco-friendly ABS, this magnet is designed to withstand water, impacts, and corrosion. Its sleek finish—available in standard black or white, with custom color options—makes it perfect for a wide range of applications including hidden magnet systems, bag hardware, and various industrial uses.

Ideal Applications:

• Hidden magnet applications in custom bag hardware
• Industrial and consumer products requiring robust magnetic solutions
• Accessories and components where a sleek, durable magnet is essential

Ready to integrate this high-performance magnet into your product designs? Contact us at info@richarms.com or visit Loja on-line da Richarms to place your order or request a sample.

Embalagem:

Direção da magnetização

Richarms offers innovative Sew In Hidden Magnets, expertly designed with a high-performance single-pole magnet sealed securely within waterproof plastic casings, including durable PVC and flexible, soft-touch TPR. These versatile hidden magnets seamlessly integrate into fabrics, ensuring a discreet yet robust magnetic closure solution.

Our sewable hidden magnets combine convenience, elegance, and reliability. Encasing the powerful neodymium magnets in a waterproof, oxidation-resistant PVC or TPR film ensures prolonged magnet lifespan and enhanced safety—even if a magnet fractures, it remains intact and retains functionality. The magnet fragments won’t scatter, preserving magnetic power and product integrity.

Common Applications Include:

• Handbags & Wallets: Seamlessly hidden magnetic closures that maintain sophisticated aesthetics.
• Capas de couro para diários: Premium feel and easy closure without visible hardware.
• Apparel & Outerwear: Discreet closures perfect for jackets, coats, and pockets.
• Gift & Packaging: Refined, secure closures for premium gift boxes and packaging designs.

Customizing your sew-in hidden magnet is straightforward. Richarms provides extensive flexibility, allowing you to select magnetic strength, precise dimensions, and shape to meet your exact requirements.

Whether you’re a DIY enthusiast working on custom projects or a manufacturer seeking high-volume solutions, we have you covered. DIY users can easily sew in magnets directly, while professional manufacturers may prefer specialized equipment for seamless, efficient mass production.

For a tailored solution, reach out to our experts today for a personalized quote, or conveniently order directly through our Loja da Shopify.

Explore related products like our standard single pole magnet for additional versatility.

Our stock size will be delivered within 3 days
Disc Shape (mm): 8×2, 10×2, 12×2, 15×2, 15×3, 17×2, 17×3, 18×2, 18×3, 20×2, 20×3, 22×3, 25×3
Rectangular Shape (mm): 20x10x2,27x8x3

Other customized dimension lead time is 15-20 days

Pacote：

1 set = 1 “+”, 1 “-“, or customer can only order 1 pole

Grade:
N30 N35M-N52M, N35H-N50H, N33SH-N45SH

Acabamentos：
Standard finish is PLAIN metal cap, PLAIN or PATTERN plastic cover, logo customized available
Regular color is Zn. Custom finishes are also available to meet your requirements.

Aplicação：