The Large Disc with Hole Magnet for Industrial Applications is a robust, heavy-duty magnetic component designed to meet the rigorous demands of industrial environments—including manufacturing, construction, mining, and material handling. With outer diameters ranging from 50mm to 200mm, inner hole diameters from 10mm to 50mm, and thicknesses from 8mm to 30mm, this magnet is engineered to deliver exceptional holding force (50kg to 500kg) and withstand extreme conditions like high vibration, temperature fluctuations (-40°C to 150°C), and exposure to dust, oil, and chemicals. Crafted from high-grade neodymium (NdFeB) or samarium cobalt (SmCo) for high-temperature resistance, it is built to secure heavy components, lift materials, and enhance the efficiency of industrial processes.

A defining feature of this large disc magnet is its reinforced structure, which includes a steel backing plate integrated with the magnet. This backing plate serves two critical purposes: it concentrates the magnetic field at the magnet’s contact surface, boosting its effective holding force, and provides mechanical strength to prevent cracking or damage during heavy use. For example, in a manufacturing plant’s conveyor system, a 150mm outer diameter, 30mm inner hole neodymium disc magnet (with a steel backing) is used to lift and transport large metal sheets. The magnet is mounted on a robotic arm, and its strong magnetic force grips the metal sheet securely, while the hole allows for attachment to the arm via a heavy-duty bolt. The steel backing plate ensures the magnet can withstand the weight of the metal sheet (up to 300kg) without bending or breaking.

In mining and recycling operations, the Large Disc with Hole Magnet is used in magnetic separators to extract ferrous metals from ore, coal, or waste materials. A 200mm disc magnet with a 50mm hole is installed in a separator drum, where it rotates with the drum to attract iron particles. The hole in the magnet allows it to be mounted on the drum’s central shaft, ensuring it stays aligned during rotation. The magnet’s strong force captures even small metal fragments, preventing them from damaging downstream equipment (like crushers or conveyors) and improving the quality of the final product.

Another key application is in industrial clamping systems for metalworking. During welding, grinding, or machining, large metal workpieces need to be held securely to prevent movement. A 100mm disc magnet with a 20mm hole can be bolted to a workbench or fixture, and its magnetic force grips the workpiece tightly. The disc shape ensures even pressure distribution across the workpiece’s surface, reducing the risk of warping or misalignment during processing. Unlike mechanical clamps, which can leave marks or require time-consuming adjustments, the magnetic clamp is easy to attach and remove, speeding up production cycles.

Durability is enhanced by specialized coatings and treatments. The magnet’s surface is coated with a thick layer of nickel-copper-nickel plating or epoxy resin, which resists corrosion from oil, grease, and chemicals commonly found in industrial settings. The steel backing plate is also coated with anti-rust paint to prevent oxidation, ensuring the entire assembly lasts for years. Additionally, the magnet is designed to withstand high temperatures—samarium cobalt variants can operate reliably up to 350°C, making them suitable for use in foundries or heat-treatment facilities.

Whether used for lifting heavy materials, separating metals, or clamping workpieces, the Large Disc with Hole Magnet for Industrial Applications delivers the strength, durability, and reliability needed to optimize industrial operations. Its ability to thrive in harsh conditions makes it an indispensable tool for industries that rely on heavy-duty magnetic solutions.