Buy 6x3mm Disc Magnets Online in South Africa - Strong Neodymium Magnets at Communica

Product Specifications & Options

6x3mm disc magnets are available in two common material types, each suiting different SA use cases:

*Pull force figures are for direct contact on smooth steel, tested at 22 degreesC; real-world results depend on mounting, air gaps, and grade.

Communica stocks high-quality neodymium and ferrite versions, with standard nickel or epoxy coatings, compatible with a wide range of sensing, holding, and magnetic circuit uses. Look for exact part number matches on the All Products index or filter by diameter on category pages.

Why Size & Grade Matter

• 6mm diameter fits breadboards, PCBs, and small jigs without obstructing parts
• 3mm thickness enables flush mounting in enclosures or panels
• Grade (N35-N42) determines magnetic strength; use higher grades for sensor actuation or precise holding

Choosing and Using 6x3mm Magnets in SA Projects

When specifying disc magnets for electronics or mechanical assemblies, keep these practical criteria in mind for South African conditions:

• Holding Strength: Check pull force vs application load. For example, a 6x3mm N42 neodymium magnet can securely close a 250g sensor hatch.
• Corrosion Resistance: Nickel, zinc, or epoxy coatings protect against humidity in labs or garages. Avoid water immersion unless sealed.
• Temperature Limit: Neodymium loses strength above 80 degreesC - avoid near hot components or in reflow environments.
• Safe Handling: Strong small magnets can snap together suddenly. In classrooms, supervise use and avoid children under 8 years old.

Example: Assembling a Reed-Switch Trigger (SA Lab Demo)

For a contactless rotary encoder, mount a 6x3mm neodymium disc magnet on the shaft. Align a standard glass reed switch (available here) so that with each revolution, the magnetic field reliably actuates the switch. Fine-tune spacing for repeatability (typically 2-4mm gap for N35/6x3mm).

Bulk Ordering, Lead Times & Branch Pickup

Communica maintains local stock of common magnet sizes at the Samrand warehouse. Bulk or school/lab pack orders generally dispatch within 1-2 working days. For urgent needs or education projects, contact your nearest branch to confirm in-store stock and arrange VAT invoice supply. Lead times for special grades or large quantities are available on request via quote.

Accessory & Category Links

• Tools & Supplies collection - adhesives, mounts, enclosures
• See branch hours & contact info for pickup queries
• Shop by Brand for magnets and assembly accessories

Sources

• Communica All Products Index - Magnets
• K&J Magnetics - Neodymium Disc Magnet Specifications
• Cool Magnet Man - Magnet Material Types Explained
• Communica Branches & Trading Hours
• Arnold Magnetic Technologies - Neodymium Magnet Properties PDF