40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office (Two Pieces)
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40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office (Two Pieces)
Made from super strong magnetic element, the neodymium magnets are incredibly powerful and great to handle your project or task.
40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office (Two Pieces)
Numéro d'article: 84394386

40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office

89% des répondants recommanderaient ceci à un ami

Numéro d'article: 84394386

€ 40

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Made from super strong magnetic element, the neodymium magnets are incredibly powerful and great to handle your project or task.
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Ce qui se démarque

Superior Strength
These neodymium disc magnets offer exceptional holding power, making them perfect for supporting heavy objects, ideal for science projects, crafting, and office use.
Versatile Applications
Designed for diverse tasks, these magnets can be used in various settings, from home crafting to professional projects, enhancing creativity and functionality.
Durable Quality
Crafted from rare earth materials, these magnets provide lasting performance, ensuring reliability and effectiveness in your DIY projects or organizational needs.

Détails du produit

Shop 40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office (Two Pieces) online at a best price in Saint Pierre and Miquelon. B0932RX9BV
Package Weight1.2 Pound

À qui est-ce destiné ?

Suitable For
  • Science Educators

    Ideal for experiments and demonstrations, showcasing magnetic properties and principles in an engaging manner for students.

  • Craft Enthusiasts

    Great for DIY projects, allowing creative individuals to enhance their crafts with strong holding power.

  • Office Use

    Perfect for securing notes and papers on metal surfaces, improving organization in a workspace or home office.

Not Suitable For
  • Young Children

    Not safe for small kids due to the potential choking hazard and strong magnetic pull, which can be dangerous.

DESCRIPTION DU PRODUIT

40x20mm Super Strong Neodymium Disc Magnet, Powerful Magnet Disc Permanent Rare Earth Magnets for Science Project Building Fridge Craft and Office (Two Pieces)

Vous avez une question ? Chattez avec nous

Questions et réponses des clients

  • question: What is a neodymium magnet and how is it different from other magnets?

    répondre: Neodymium magnets, also known as rare earth magnets, are made from an alloy of neodymium, iron, and boron. They are known for their exceptional magnetic strength, making them significantly more powerful than standard ferrite magnets. Due to their compact size and high holding force, they are ideal for various applications, including crafts, science projects, and industrial uses. Their ability to maintain strong magnetism over time makes them perfect for use in office settings as well.
  • question: What are the primary uses for a 40x20mm neodymium disc magnet?

    répondre: The 40x20mm neodymium disc magnet is versatile, commonly used in a variety of applications, including craft projects, science experiments, and even organizational tasks in offices and homes. For instance, they can effectively hold items on a refrigerator, be used in DIY projects to create powerful magnetic closures, or even support educational models in classrooms. Their strength allows for creative uses in both functional and artistic endeavors.
  • question: Can these magnets be used indoors and outdoors?

    répondre: Yes, the 40x20mm neodymium disc magnets are suitable for both indoor and outdoor use. However, it's important to note that while they are strong, exposure to extreme weather conditions or constant water can potentially affect their performance over time. They are perfect for outdoor crafts, such as garden art, or for securing objects in outdoor workshops as long as they are protected from harsh elements.
  • question: Are there any safety precautions I should take when using neodymium magnets?

    répondre: Yes, safety precautions are advisable when handling neodymium magnets. Due to their strong magnetic fields, keep them away from electronic devices and pacemakers. Avoid pinching fingers or skin between two magnets, as their attractive force can cause injuries. It’s also wise to supervise children during use to ensure they handle these magnets responsibly, reinforcing safe practices when working with powerful magnetic materials.
  • question: How do I properly store neodymium magnets?

    répondre: To properly store neodymium magnets, keep them in a dry environment, away from direct sunlight and heat sources. It is advisable to place separators like paper or plastic between magnets to prevent them from sticking together, which can lead to chipping or breaking. For magnetic collections, consider using trays or containers that can hold the magnets securely while minimizing movement.
  • question: Can I use these magnets for mounting objects?

    répondre: Absolutely, the 40x20mm neodymium disc magnets are excellent for mounting objects due to their strong holding power. They can be used to secure items like tools on metal surfaces, display decorations on fridges, or even create unique wall art setups. Their reliability in holding various materials makes them a favorite for both home organization and professional displays.
  • question: Do these magnets conduct electricity?

    répondre: Neodymium magnets themselves do not conduct electricity as they are made of magnetic materials, specifically neodymium, iron, and boron. However, if used in conjunction with conductive materials, they can have applications in electrical engineering and motors. Always ensure that their magnetic field does not interfere with electronic devices or magnetic-sensitive equipment in your projects.
  • question: What weight can these magnets typically hold?

    répondre: The holding strength of the 40x20mm neodymium disc magnets can vary based on the surface they are attached to and the nature of the materials being held. On ferrous surfaces, they can hold several kilograms, making them ideal for heavier applications such as securing tools or large decorative pieces. For optimal performance, ensure that the contact surface is clean and smooth.
  • question: Are these magnets temperature sensitive?

    répondre: Yes, neodymium magnets can be affected by temperature changes. While they perform well at room temperature, excessive heat can demagnetize them, and extreme cold can make them brittle. For most home and craft applications, they’ll perform reliably, but it’s advisable to avoid placing them in environments where temperatures exceed recommended limits.
  • question: Where can I buy 40x20mm Super Strong Neodymium Disc Magnet?

    répondre: You can buy the 40x20mm Super Strong Neodymium Disc Magnet from Ubuy in Saint Pierre and Miquelon. Ubuy offers a wide selection of quality magnets, including this powerful neodymium option, perfect for your science projects, crafts, and office needs. With Ubuy, you can find the right tools to make your projects successful and innovative.

SPENCER SPENCER HAPPUCATION Rare Earth Magnets Editorial Review

### Editorial Review The 40x20mm Super Strong Neodymium Disc Magnets have garnered mixed reviews from customers, largely centered around their impressive strength and durability. Many users have Consistently highlighted the magnets' remarkable pulling power, making them ideal for various applications, from scientific projects to crafting and organizing. However, this strength comes with a significant caution: the magnets can snap together with such force that they can be dangerous if not handled properly. Several reviews cited experiences of fingers getting pinched or even injuries from fragments after a magnet broke apart. Additionally, some customers faced challenges with the magnets being shipped stuck together, making them difficult to separate and leading to frustration. While there were reports about the packaging and shipping issues, the product itself has generally met or exceeded expectations in terms of performance once properly handled. Users have appreciated the responsiveness of the seller in addressing any shipping concerns, which has helped enhance customer satisfaction despite these initial hurdles. ###

Avis et évaluations clients

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Avantages

  • Extremely strong pulling power
  • Durable and well-made
  • Versatile for different applications (crafting, science projects)

Les inconvénients

  • Can snap together with great force, risking injury

CONFIANCE EN LA PLATEFORME & PROTECTION DE L'ACHETEUR

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“Great products and very good service: very easy and very fast international delivery.”

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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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€ 40

Commandez maintenant et recevez votre commande aux alentours du Samedi, Octobre 03

QTY:

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Conforme PCI DSS et certifié ISO 27001:2022, avec des paiements chiffrés et une protection complète de l'acheteur pour chaque commande.

Nos meilleurs partenaires logistiques
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Livraison transfrontalière la plus rapide

Caractéristiques et avantages

  • Made from strong neodymium-iron-boron alloy with stylish nickel coating
  • Ni+Cu+Ni Triple layer coated for rust resistance and longevity
  • Incredibly powerful for any project or task
  • Can be used for fastening, lifting, hanging, and various other purposes

Assurance Ubuy

Profitez d'une expérience d'achat sereine avec des produits 100 % originaux, une sécurité de paiement conforme PCI DSS, une protection des données certifiée ISO 27001, la livraison transfrontalière la plus rapide, les retours gratuits* et un emballage sécurisé pour chaque commande.