Buy N35 Neodymium Cylinder Magnets Online - In Stock for Projects & Production

Product overview and common specifications

Cylinder magnets are specified by diameter (D) and length (L). Typical N35 cylinder options range from 3mm x 2mm to 25mm x 20mm. Common specifications to compare include material grade (N35), plating (nickel, nickel-copper-nickel), maximum operating temperature (usually ~80 degreesC for standard N35), and pull force (measured in newtons or kilograms-force). Higher pull force does not always mean better for your application - consider safety, handling and the magnetic circuit.

Quick spec comparison

Plating, temperature and handling

• Plating: Nickel or triple-layer nickel-copper-nickel is common; it reduces corrosion and gives a shiny finish. For humid coastal areas in South Africa consider additional protective coatings or stainless housings.
• Temperature: N35 has a modest maximum operating temperature (~80 degreesC). If your application heats above this, specify higher-grade magnets (e.g., N42, N52 or heat-treated variants) and check datasheets.
• Handling safety: Neodymium magnets are brittle and can chip or snap together dangerously. Keep away from pacemakers, credit cards and sensitive electronics, and use appropriate PPE during assembly. See our best practices for handling neodymium magnets.

How to choose the right N35 neodymium cylinder magnet

Match size and pull force to the task

Start by estimating the required pull force with a simple safety margin. For example, a small latch might need 2-5 N; add 25% extra to allow for misalignment and surface finish. For coupling two rotating faces, calculate torque using magnet spacing and radius - consult datasheets for flux density vs distance charts.

Mounting and adhesives

Magnets can be press-fit, glued, or housed in countersunk metal or plastic fixtures. Use epoxy adhesives rated for your application; for repeated removal, consider mechanical retention (screws/clips). When embedding magnets in 3D-printed parts, allow clearance for plating and tolerances.

Compatibility and accessory bundles

• Shields & keepers: Use soft-iron keepers during storage to reduce demagnetisation for larger magnets.
• Countersunk variants: Choose countersunk cylinders when you must bolt magnets in place.
• Protective sleeves: Rubber or plastic sleeves protect plated surfaces and reduce chipping for handheld applications.

Ordering, stock and procurement in South Africa

When buying N35 neodymium cylinder magnets online from Communica, check product pages for detailed dimensions and pull-force specs. For bulk orders, request a quote and expect lead times to vary - local stock is quicker for small quantities (tens to hundreds), while larger batches may incur import lead times. Typical procurement flows for schools and small businesses include VAT invoices and branch collection from Samrand, Pretoria CBD or Cape Town.

Safety and testing tips

• Test pull force on a clean, flat steel surface; real-world joints often give lower values due to air gaps and surface finish.
• Avoid heating beyond rated temperature; repeated thermal cycling can reduce magnet strength.
• Store large batches with iron keepers and separate with spacers to prevent sudden attraction and chipping.

Specification callouts and purchasing options

Look for clear listings showing: material grade (N35), diameter x length, plating type, pull force (N/kg), maximum operating temperature, and whether magnets are countersunk. Communica's product categories for magnets, enclosures and prototyping supplies let you bundle mounting hardware, adhesives and protective sleeves in one order. Use the stock check tool to "Check Stock in Samrand" or "Request a Quote" for larger quantities.

Example bundles

• Hobby kit: 20x 10x5 mm N35 cylinders + adhesive + rubber sleeves - ideal for prototypes.
• Motor/coupling pack: matched diameter set with keepers and mounting screws for small robotics projects.
• Education set: mixed sizes with safety sheet and storage tray for classroom experiments.

Sources

• Neodymium magnet overview - Wikipedia
• Magnet basics and handling guidance - Magnetic.com
• Practical notes on magnet strength and distance - Engineering Toolbox