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20mm x 3mm x (3.6mm Countersunk Hole) Neodymium Disc Black Epoxy Magnet N52SH – Max Temp 150° (5.29KG Pull)

SKU: MS0286

£20.04£2,840.49

Discover the remarkable capabilities of these 20mm x 3mm x (3.6mm countersunk hole) neodymium disc black epoxy magnets, ideal for a wide range of applications. With their strong magnetic force, high heat tolerance of up to 150°C, and higher resistance to demagnetisation forces, these versatile block-shaped magnets are perfect for use in high-temperature environments such as automotive engines, industrial machinery, electronics, and heat-resistant manufacturing processes. Enhance your projects with the exceptional performance and reliability of premium neodymium block magnets. These high-temperature N52SH-grade neodymium magnets are exceptionally powerful, providing top-tier magnetic strength and performance for a wide range of demanding applications.

These N52SH magnets deliver exceptional magnetic force and can withstand temperatures up to 150°C, combining strength with heat resistance. They remain effective in everyday applications, ensuring reliable performance even outside of high-temperature environments.

 

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20mm x 3mm x (3.6mm Countersunk Hole) Neodymium Disc Black Epoxy Magnet N52SH – Max Temp 150° (5.29KG Pull)

SKU: MS0286

£20.04£2,840.49

Discover the remarkable capabilities of these 20mm x 3mm x (3.6mm countersunk hole) neodymium disc black epoxy magnets, ideal for a wide range of applications. With their strong magnetic force, high heat tolerance of up to 150°C, and higher resistance to demagnetisation forces, these versatile block-shaped magnets are perfect for use in high-temperature environments such as automotive engines, industrial machinery, electronics, and heat-resistant manufacturing processes. Enhance your projects with the exceptional performance and reliability of premium neodymium block magnets. These high-temperature N52SH-grade neodymium magnets are exceptionally powerful, providing top-tier magnetic strength and performance for a wide range of demanding applications.

These N52SH magnets deliver exceptional magnetic force and can withstand temperatures up to 150°C, combining strength with heat resistance. They remain effective in everyday applications, ensuring reliable performance even outside of high-temperature environments.

 

Bulk Ordering?
Request a quote for exclusive wholesale pricing.
Custom Sizes?
Get a free quote for cost-effective custom magnets.
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About Neodymium Magnets
Neodymium (NdFeB) magnets, the strongest permanent magnets available, provide exceptional magnetic force for a variety of tasks. These magnets are ideal for DIY enthusiasts looking to organise tools or create custom magnetic fixtures. In the construction industry, they are used to secure metal components, ensuring stability during building projects. Their role in the mining industry is equally important, where they assist in the extraction and processing of magnetic minerals. Whether for home or industrial use, these magnets offer unparalleled strength and reliability. To learn more about magnetic materials, click here.

20mm x 3mm x (3.6mm Countersunk Hole) Neodymium Disc Magnets
These countersunk disc magnets are perfect for anyone, whether for business or personal use, offering a robust magnetic hold and easy screw installation. They are highly valued in manufacturing and engineering settings, where they secure panels, attach metal components, and stabilise machinery with reliable force. Additionally, they are ideal for home projects, such as creating magnetic tool holders, securing heavy doors, or organising kitchen spaces. Their application also extends to the retail sector, where they provide a secure and adjustable solution for mounting signs, displays, and shelving. With their strong magnetic pull and versatile design, these magnets are essential for a wide range of uses. To learn more about available magnet shapes, click here.

Magnet Grade: N52SH
These N52SH neodymium magnets combine exceptional magnetic strength with superior heat resistance, making them ideal for demanding applications. With a maximum energy product of 52 MGOe, they are among the most powerful magnets available today. The "Super High Temperature" rating ensures that they can maintain their magnetic properties even at temperatures as high as 150°C (302°F), making them suitable for environments where heat could otherwise compromise performance. Additionally, these magnets are designed to resist demagnetisation forces such as external magnetic fields and mechanical stress. Despite their high-temperature capabilities, N52SH magnets are equally effective in everyday applications, providing reliable and consistent performance in a wide range of conditions. To learn more about magnet grades, click here.

Protective Coating: Epoxy
Magnets with epoxy coating are specifically designed for environments where protection against corrosion, moisture, and chemicals is crucial. The matt black polymer coating serves as a tough, resilient barrier that encases the magnet, shielding it from damaging elements. This coating is particularly beneficial in applications involving exposure to water, salt, or industrial chemicals, as it prevents the magnet from deteriorating. The added impact resistance provided by the epoxy layer further ensures that the magnet can endure mechanical stress, making it a reliable choice for challenging environments. To learn more about protective coatings and platings, click here.

Additional information

Weight N/A
Producy Code / SKU

Material

Shape

,

Diameter

20mm

Thickness

3mm

Countersunk Hole

3.6mm

Tolerance

+ / – 0.05mm

Grade

N52SH

Max Gauss

4219

Pull (KG)

5.29KG

Pull Force Range

5KG – 10KG

Coating / Plating

Magnetisation Direction

Axially Magnetised

Polarity

Countersunk Face North

Max Temperature

About Magnet Store

Our Story
Magnet Store began as a small, family-owned business with a deep-rooted passion for innovation in magnetic technology. From our early days, we focused on understanding the unique needs of our customers and delivering products that not only met but exceeded their expectations. This dedication has allowed us to evolve from a modest start-up into one of the most respected and trusted names in the global magnet industry. Our headquarters in Greater Manchester, United Kingdom, serves as the hub for our operations, where a commitment to excellence drives every aspect of our business. Over the years, we have expanded our product range and services, continuously adapting to the changing demands of industries worldwide. Today, Magnet Store is a leader in providing magnetic solutions, supplying everything from small, precision magnets for individual projects to large-scale, custom-engineered magnets for industrial giants.

Multi-Award Winning Excellence
Our relentless pursuit of excellence has earned Magnet Store multiple industry accolades, solidifying our position as a leader in the magnetic solutions sector. Among our proudest achievements are the titles of Magnet Supplier of the Year in the Global Awards, Most Innovative in Magnetic Solutions, and Metals Wholesaler of the Year. These prestigious awards are a testament to our unwavering commitment to quality, innovation, and customer satisfaction.

Why Choose Magnet Store
When you choose Magnet Store, you’re not just getting a magnet—you’re teaming up with a company that truly cares about quality and trustworthiness. We put our heart into making sure every magnet we produce is reliable and safe, and we’re proud of our commitment to doing things right. From our careful craftsmanship to our commitment to environmental responsibility, we strive to deliver the best for you. When you choose Magnet Store, you’re not just selecting top-tier performance; you’re also partnering with a company dedicated to quality and doing things the right way. We take pride in our efforts to ensure that our practices align with our values, providing you with products that are both exceptional and responsibly made.

Quality Control & Compliance

At Magnet Store, we’re passionate about delivering magnets of the highest quality. From start to finish, every part of our process is designed with precision and care to ensure you get a product that’s durable, reliable, and safe. Our thorough quality control and adherence to international standards is what help us stand out in the industry.

Gold Standard Quality Control
To ensure that our magnets meet the highest standards, we employ extensive testing procedures at every stage of production:

  • Sourcing and Preparation: We source high-grade materials from trusted partners and carefully prepare them to optimise magnetic properties.
  • Manufacturing: Advanced processes including precise pressing, controlled sintering, and exact machining ensure uniformity and structural integrity.
  • Finishing and Testing: Protective coatings are applied and inspected, magnets are magnetised to achieve consistent strength, and each product undergoes thorough final checks for size, strength, and quality before shipment.

Commitment to Compliance
Magnet Store is fully committed to adhering to global safety and environmental standards. Our products comply with key international regulations, providing assurance that they are both safe to use and environmentally responsible.

  • RoHS Compliance: Our magnets meet the Restriction of Hazardous Substances (RoHS) directive, ensuring they are free from harmful materials such as lead, mercury, and cadmium. This compliance protects the environment and ensures the safety of all who handle our products.
  • REACH Compliance: We adhere to the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation, which governs the use of chemicals in our manufacturing process. This commitment ensures that our products are not only high-performing but also safe and sustainable.

Delivery & Return Policy

We strive to ensure that your order reaches you as quickly and efficiently as possible. We offer the following delivery options:

  • UK Delivery:
    • Standard Delivery: £1.99 (3-5 working days)
    • Express Delivery: £6.99 (1-2 working days)
    • Orders placed before 14:00 GMT are dispatched on the same day. Orders placed after 14:00 GMT will be dispatched on the next business day. Please note that the estimated delivery time (ETA) is calculated from the dispatch day, not the purchase day.
  • International Delivery:
    • The cost of shipping outside the UK depends on the weight of the item and the destination.
    • If you do not see your country listed at checkout, please get in touch with us, and we will do our best to accommodate your delivery needs.

Returns Policy
Your satisfaction is our priority at Magnet Store. That’s why we offer a 30-day return policy to give you peace of mind with every purchase. If for any reason you are not completely satisfied with your magnets, you may return them within 30 days for a full refund of the purchase price, excluding shipping costs.

To ensure the safe return of your product and to facilitate a smooth refund process, we require that the package be sent via tracked delivery. This measure helps us confirm the safe arrival of your return. Please note that we cannot process a refund if the package does not reach our facility.

When returning the magnets, please ensure they are in resellable condition, just as you received them. Proper padding is crucial when packaging your return; inadequate padding could cause the magnets to become attached to machinery during transit, which may prevent the package from arriving safely. Refunds can only be issued upon successful delivery and after we have verified that the magnets are returned in their original condition.

Safety & Disclaimer

At Magnet Store, your safety is our top priority. We are committed to providing high-quality products, but it’s equally important to us that you use them safely and responsibly. To ensure your well-being and the safety of those around you, please carefully review the following guidelines and precautions.

Use and Handling Magnets

  • Magnet Store supplies powerful magnets that can cause serious injury or damage if not handled properly. These magnets are not toys and should never be used by or near children or vulnerable individuals.
  • Purchases are restricted to individuals aged 18 or older. By purchasing from us, you confirm that you meet this age requirement.
  • Magnets must be kept away from children, vulnerable persons, and anyone who may inadvertently misuse them. Improper handling can result in severe injury or fatality.

Safety Precautions

  • Strong magnets can crush, pinch, or damage limbs. We strongly advise handling magnets with safety gloves and taking extra precautions to avoid injury.
  • Magnets must be kept at a safe distance from electronic devices (such as pacemakers, computers, mobile phones), magnetic storage devices, and mechanical instruments as they can cause permanent damage to such items.
  • Swallowing magnets is extremely dangerous and can be fatal. If a magnet is swallowed, seek immediate medical assistance.

Responsibility and Liability

  • Magnet Store assumes no liability for any damage, injury, or fatality that results from improper use, handling, or storage of magnets. By purchasing and using our products, you accept full responsibility for their safe and proper use.
  • Magnets must be stored and disposed of safely to avoid unintended harm or damage. It is your responsibility to ensure that magnets are kept out of reach of children and other vulnerable individuals.
  • Magnet Store is not liable for any damage to electronic devices, mechanical instruments, or other property resulting from exposure to magnets.

Purchasing and Use Agreement

  • By completing a purchase with Magnet Store, you agree to adhere to all safety guidelines and precautions provided. You also agree that Magnet Store cannot be held liable for any injuries, damages, or losses that occur from the use or misuse of our products.
  • Magnet Store reserves the right to refuse sale to any individual or entity if we believe that our products may be used in an unsafe manner.


Final Notice

Magnet Store provides this information to ensure the safety of our customers and the general public. It is imperative that you read and understand these safety guidelines before purchasing and using our magnets. Failure to follow these guidelines can result in severe consequences for which Magnet Store will not be held responsible.

Thank you for your attention to these important safety considerations.

Custom Magnets

At Magnet Store, we tailor state-of-the-art magnetism to your needs. Whether you need high-performance neodymium magnets for complex industrial applications or require the distinctive qualities of Samarium Cobalt (SmCo), Ferrite, or Alnico, our expertise ensures the ideal solution for every requirement. With our advanced engineering, precision manufacturing, and flexible approach, we deliver exactly what you need—quickly and cost-effectively. With one of the industry’s fastest lead times and no minimum order quantities, we are an excellent choice for both small and large-scale projects and we’re here to support your needs. For more information, click here.

  • Affordability & Wholesale Pricing: In many cases, custom magnets are more cost-effective than standard website prices, particularly for larger orders. This is because we cut overheads like stock management, warehousing, and operational costs, allowing us to pass the savings directly to you. Custom manufacturing starts at £99, with prices per unit decreasing as order quantities increase. For smaller magnets (1mm to 30mm), ordering 500 pieces or more typically secures better pricing. For larger magnets (over 30mm), around 100 pieces are often enough for cost-effective rates. Bulk orders of 1,000+ units unlock even more competitive wholesale pricing, well below standard retail rates.
  • Custom Shapes with High Precision: We produce magnets in virtually any shape with precision down to 0.05mm. For complex designs, simply provide CAD files or detailed drawings, and we’ll produce your magnets to exact specifications. Please note, in rare instances, ferrite magnets may require a molding fee, however, this will be clearly displayed on your quote.
  • Advanced Neodymium Grades: We provide high-performance neodymium grades rarely available on the market, including N54, N55, N56, and N58, offering exceptional power for demanding applications. Our capability to produce these advanced grades sets us apart, meeting the needs of specialised and high-demand projects. Minimum order quantities (MOQ) may apply for grades N55 and above due to their specialised manufacturing processes.
  • Flexible Ordering Options: We offer flexible ordering with no strict minimum order quantity (MOQ) for most custom magnets, which means you can easily order samples and low quantities—no questions asked. Please note, advanced grades (e.g. N55 and above) and special coatings may require an MOQ.
  • Fast Production & Lead Times: We deliver quickly, with most orders completed in just 12-15 business days—significantly faster than the industry average of 25-30 days. Please note, advanced grades (N55 and above), specialised coatings or materials may have slightly longer lead times.


Get a Quote for Custom Magnets
To receive a quote of your custom magnets, simply contact us with the following details:

  • Magnet shape, size, and grade (e.g., neodymium N35-N52).
  • Any specific requirements (if applicable), such as magnetisation direction, coating, or heat tolerance.
  • The quantity you require.
  • Shipping address.

Once we have this information, we’ll send you a quote and lead time within 1 working day. If you’re happy with the quote, you can accept it directly through the email, which will automatically generate an invoice and payment instructions. After payment is made (via PayPal, debit/credit card, BACS, etc.), please send us a confirmation email to ensure we begin production immediately.