Custom Neodymium Block Magnets (Black Nickel Finish)

  • Black Nickel plating offers superior corrosion & abrasion resistance
  • Plating gives magnets a professional, matte black appearance
  • Custom sizes ideal for sensors, motors & industrial automation
  • Choice of N35-N52 grades for strong pull force in compact size
  • Consistent flux density & field strength for reliable performance

Free shipping on orders over $500!

  • FREE samples available upon request
Supported Payment Methods

Description

Magnets that disappear into your design

Standard nickel-plated magnets have a bright silver finish.
It can create visual distractions in dark-colored products.
Our black nickel-plated blocks offer a sophisticated dark gunmetal finish that blends seamlessly into your design.

Metallic finish, not coating

Unlike paint or epoxy coatings, black nickel maintains a refined metallic luster.
Meanwhile, it provides the same corrosion protection as standard nickel plating.

Ideal applications:

– Visible magnetic latches in premium devices
– Architectural fixtures and hardware
– Luxury packaging where hardware should blend in, not stand out
– Black plastic housings and carbon fiber components

Expert Guide: Black Nickel vs. Black Epoxy

A common confusion exists between these two black finishes.
They look similar in photos but behave very differently.

Here is how to choose the right one for your application:

Option A: Choose “Black Nickel” (This Product) if:

You want a Metallic Look:
– You need a shiny, mirror-like finish.
– Similar to black chrome or hematite to match high-end metal or plastic parts.

You need Precision:
– You require tight dimensional tolerances.
– Black Nickel plating is very thin (approx. 15 microns).
– It does not alter the magnetโ€™s size significantly.

You need Conductivity:
– The magnet must conduct electricity.
– Or act as a ground contact in a circuit.
– Black Nickel is electrically conductive.

Option B: Switch to “Black Epoxy” if:

You need Waterproofing:
– You are using the magnet outdoors or in humid environments.
– Epoxy is a thick plastic coating that offers superior corrosion resistance.

You want a Matte Look:
– You need a non-reflective, “paint-like” jet-black finish.

You need Insulation:
– The magnet must be electrically isolated. Epoxy is an insulator.

Technical Specifications

Plating Structure:
We utilize a premium Triple-Layer Process (Ni-Cu-Black Ni).

– Base Layer (Nickel): Adhesion to the magnet.
– Middle Layer (Copper): Maximum corrosion resistance and leveling.
– Top Layer (Black Nickel): The decorative dark finish.

Color Tone:
– Please note that “Black Nickel” is technically a Dark Grey / Anthracite color.
– It is not “Jet Black” like ink.

Dimensions:
– Available in all standard block sizes.

Tolerances:
– Standard ยฑ0.05mm.
– Black Nickel allows for tighter precision than Epoxy.

Ideal Applications

Consumer Electronics: Magnetic closures for laptops, gaming peripherals, and VR headsets where a silver magnet would look “cheap.”
Retail Displays: Holding signage on black metal shelving without drawing attention to the fixture.
Architectural Lighting: Magnetic track lights and fixtures where the hardware must remain unobtrusive in a dark ceiling.
Tactical Gear: Equipment where non-reflective surfaces are preferred.

Durability & Handling Advice

The “Wear” Factor:
– While Black Nickel is durable, it is a decorative surface plating.
– If the magnets slam repeatedly against rough steel or other magnets, the black topcoat may eventually wear down at the impact points.
– This will reveale the lighter nickel/copper layer underneath.

Fingerprints:
– Because the surface is glossy and metallic, it can show fingerprints during assembly.
– For pristine cosmetic parts, we recommend assembly workers wear gloves.

Ordering Guide

To customize this product, please specify:

1). Dimensions: Length x Width x Thickness (Block direction).
2). Grade: N35, N42, N52.
3). Magnetization: Through Thickness (Standard) or Matched Pairs?
4). Cosmetic Requirements:
– If this is for a high-end visible surface (Face A), please specify “Cosmetic Grade Control”.
– So we can filter out minor surface scratches during QC.

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