The primary concern in pot magnet production is the pull force required to hold objects, and the overall size of the magnet is given less consideration. As long as the pot magnet fulfills its intended function and meets the overall size requirements, the magnet’s size is typically deemed unimportant (unless specified by the customer).
It’s worth noting that the pull strength of a round pot magnet is not necessarily correlated to its diameter or thickness. Various factors need to be considered, and trade-offs are made to achieve the highest possible pull strength. Factors such as the thickness of the pot wall in relation to the magnet size, the concentricity of the magnet and steel housing, and the concavity of the magnet relative to its metal casing (usually around 0.1mm) are all crucial considerations in zero air gap application settings.