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Home > Precast Concrete Magnets > High-Quality Premium Neodymium N54/N55 Rectangular Block Magnets | High-Strength Rare Earth Magnets Exporter, Companies
High-Quality Premium Neodymium N54/N55 Rectangular Block Magnets | High-Strength Rare Earth Magnets Exporter, Companies
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High-Quality Premium Neodymium N54/N55 Rectangular Block Magnets | High-Strength Rare Earth Magnets Exporter, Companies

High-Quality Premium Neodymium N54/N55 Rectangular Block Magnets | High-Strength Rare Earth Magnets Exporter, Companies

Premium N54/N55 Nd-Fe-B Rectangular Magnets | 3-Layer Coated, Self-Adhesive, 54-55 MGOe BHmax. Ideal for industrial, medical, & creative applications requiring compact, high-strength solutions.

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Product Description

Description
Our Neodymium N54/N55 Rectangular Block Magnets are top-of-the-line rare earth magnets crafted for superior magnetic performance. Composed of Nd-Fe-B alloy (Nd₂Fe₁₄B), these magnets deliver unrivaled strength, making them ideal for industrial, engineering, and creative applications requiring compact yet powerful solutions.
Key Features
Exceptional Magnetic Strength

Grade N54/N55: Offers a maximum energy product (BHmax) of 54-55 MGOe, surpassing traditional permanent magnets.

Ideal for high-precision tasks in motors, sensors, medical devices, and aerospace components.

Three-Layer Protective Coating

Ni-Cu-Ni (Nickel-Copper-Nickel): Coating provides corrosion resistance, durability, and a smooth surface.

Thickness: 2-3μm Nickel + 1-2μm Copper + 2-3μm Nickel (salt spray tested for 48+ hours).

Self-Adhesive Design

Pre-applied 3M double-sided acrylic adhesive tape (peel-off film included) ensures secure mounting.

Adhesive shear strength: 2.5 kg/cm² (bonded to clean, smooth surfaces).

Precision Dimensions

Standard sizes available: 60mm × 10mm × 3mm (2.36" × 0.39" × 0.12")

Custom sizes and shapes are available to meet your specifications.

Neodymium Rectangular Block Magnets
Applications
  • Industrial: Motors, generators, magnetic separators.
  • Medical: MRI equipment, orthodontic appliances.
  • Consumer: DIY projects, furniture hardware, educational tools.
  • Engineering: Prototyping, robotics, holding fixtures.
Technical Specifications
Parameter Value
Material Nd-Fe-B (Neodymium Iron Boron)
Magnet Grade N54/N55
Remanence (Br) 1.48-1.52 T
Coercivity (Hc) ≥1280 kA/m
Maximum Operating Temp 80°C (N54), 80°C (N55)
Coating Ni-Cu-Ni (3-layer)
Adhesive Type 3M Acrylic Tape
Safety & Handling
  • Caution: Strong magnetic fields may interfere with pacemakers, watches, and electronic devices.
  • Avoid Impact: Do not drop or strike magnets to prevent chipping or demagnetization.
  • Storage: Keep away from heat, moisture, and ferromagnetic materials.
Certifications
  • RoHS compliant (2011/65/EU).
  • ISO 9001:2015 certified manufacturing process.
Why Choose Us?
  • Premium Quality: Strict quality control ensures consistent performance.
  • Custom Solutions: Tailored designs and bulk pricing available.
  • Expert Support: Technical guidance for optimal application.
Ordering Information
  • Minimum Order Quantity: 100 pieces.
  • Lead Time: 7-10 business days for standard orders.
  • Packaging: Bubble wrap + anti-static bag + cardboard box.
Note:
For detailed magnetic force calculations or custom inquiries, contact our sales team.
Frequently Asked Questions
What makes N54 and N55 grade magnets different from other neodymium magnets?
N54 and N55 are among the highest grades of neodymium magnets available, offering a maximum energy product (BHmax) of 54-55 MGOe. This translates to an exceptionally strong magnetic hold and performance compared to lower grades like N35 or N42.
Can the self-adhesive backing hold on any surface?
The pre-applied 3M acrylic adhesive tape is highly durable and designed for secure mounting on clean, dry, and smooth surfaces (such as metal, wood, plastic, and glass). It provides a shear strength of 2.5 kg/cm² under optimal conditions.
Are these magnets resistant to rust and corrosion?
Yes, these magnets feature a premium three-layer Ni-Cu-Ni (Nickel-Copper-Nickel) coating. This robust protective barrier is salt-spray tested for over 48 hours to ensure excellent corrosion resistance and long-lasting durability.
What is the maximum operating temperature for these block magnets?
Both the N54 and N55 grade rectangular block magnets have a maximum operating temperature of 80°C (176°F). Exceeding this temperature may result in temporary or permanent loss of magnetic properties.
Are custom sizes and shapes available for order?
Yes. While we offer standard sizes like 60mm × 10mm × 3mm, we also specialize in providing custom sizes, shapes, and tailored magnetic configurations to fit your exact project requirements.

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