What applications can you use ceramic disc magnets in? Many! Ceramic disc magnets can be found in DC brushless and DC permanent motors, speaker systems, outboard motors, and a wide assortment of lifting, holding, retrieving, and separating applications. BuyMagnets.com offers ceramic disc magnets in many different sizes, meaning whatever dimensions you’re working with, you’ll be able to find a ceramic disc magnet that’s a perfect fit. Ceramic magnets have maximum operating temperatures of up to 480°F, and are extremely popular due to their great performance and low cost.