Neodymium Cylinder Magnets

Neodymium Cylinder Magnets provide strong magnetic attraction in a compact, round profile. Their smooth cylindrical shape makes them easy to integrate into recessed fittings, concealed closures, and precision assemblies where a clean finish and reliable magnetic hold matter.

Send Inquiry

Products Description

A neodymium cylinder magnet is a round bar of sintered NdFeB, ground on the outside and both ends, designed to drop into a bored recess in timber. The door or lid then closes against a mild-steel plate instead of a hook. Cylinders suit joinery because a round hole is exactly what a wood drill leaves behind.

Sizes

Quoted as diameter by height. Weights are calculated from the alloy density of 7.5 g/cm³. Material is N42 as standard. These magnets are ground on a diamond wheel and are never drilled.

cylinder sizes weight table

Typical Uses

Cabinet doors close onto a cylinder set into the stile and hold against a plate on the case. The same pair works for shed gates, tool-chest lids and box tops, buried flush so nothing shows when closed. In the workshop, a cylinder in a fence or jig lets a workpiece register against pull rather than a pin. Instrument panels use one under a dial to stop a pointer creeping.

Magnetising and Coating

Charged axially as standard, with poles on the two flat ends-the orientation a latch needs. Diameter and height hold to about ±0.1 mm after grinding. Both ends are chamfered so the magnet starts squarely in a bored hole. Nickel-copper-nickel is the standard coating; epoxy is available for outdoor or wet joinery.

How to Order

If your latch needs a neodymium cylinder rather than a disc, send the diameter, height and the depth you can bore. We will confirm grade, coating and magnetising before quoting. Odd sizes are ground to drawing.

FAQ

Q: What is the difference between cylinder magnets and disc magnets?

A: Both have a circular cross-section, but cylinder magnets are generally longer relative to their diameter, while disc magnets are comparatively thin. This difference affects how they fit into an assembly and how their magnetic fields behave. A longer cylinder does not automatically provide greater holding force; performance also depends on diameter, magnet grade, contact conditions, and the material being attracted.

Q: Can neodymium cylinder magnets be glued into wood?

A: Yes. Two-part epoxy is commonly used to secure neodymium cylinder magnets inside wooden holes. The hole should be clean, dry, and slightly larger than the coated magnet to allow room for adhesive. Avoid hammering or forcing the magnet into place, as sintered NdFeB is brittle and its protective coating can be damaged under pressure.

Q: Why does a neodymium cylinder magnet have less holding force when installed behind wood?

A: Wood is not normally a magnetic shield, but it creates distance between the magnet and the steel target. Magnetic attraction decreases as this gap increases, so even a thin layer of wood can noticeably reduce the holding force. For concealed installations, keeping the magnet as close as practical to the steel plate generally improves performance.

Hot Tags: neodymium cylinder magnets, China neodymium cylinder magnets manufacturers, suppliers, factory, ball shaped neodymium sphere magnet, high pull force neodymium disc magnet, Neodymium Countersunk Magnet, Neodymium Sphere Magnet, stress relief neodymium tile magnet, Titanium Nitride Coated Magnet