Neodymium Ring Magnet – 20mm (OD) X 10mm (ID) X 8mm (H)

Magnetic Product Description:

This rare earth ring magnet has an outside diameter of 20mm, an inside diameter of 10mm and a thickness of 8mm. It has a pull force of 7.8 kg. It is identified by the AMF magnet part number 23007.

Uses for our rare earth ring magnets:

Australia operates one of the largest research and development units in the country, tasked with developing equipment that can perform critical repairs on large-scale industrial and mechanical assets — often in remote or challenging environments, far from fully equipped workshops.

A key part of this work involves using 20mm x 8mm neodymium ring magnets, which play an essential role in regulating moving parts inside tools and machines. These magnets allow mechanical components to shift or operate at precise intervals, maintaining acceptable tolerances by projecting magnetic force rather than relying on direct mechanical contact.

Ring magnets are also commonly used to attach maintenance equipment directly onto large structures, such as the hulls of ships, heavy vehicles, or aircraft fuselages. By clamping equipment like drills, hoses, or sensors securely in place, the magnets allow for precise positioning and stable operation — even where traditional clamping methods may not be practical.

This magnetic holding action provides both a quick, secure engagement and a fast release when needed. In emergency situations, the equipment can be designed to release at a specific pull force, preventing jams or allowing for a controlled disengagement.

Unlike conventional fastening systems, the magnetic grab can be engineered to introduce a slip or shuffle characteristic above its pull force, helping to dissipate excess force during operational failures. This gradual release acts as an early warning of rising pressure, reducing the risk of damage to both the equipment and the structure it’s attached to.

These versatile and powerful neodymium ring magnets are in constant demand across industries such as mining, transport, and grain processing — providing simple, effective, and adaptable solutions for tough maintenance and operational challenges.