Description Small Circular electromagnets are ideally suited for automated parts handling and packaging operations. These durable magnets are easily controlled by 12 or 24 volt power supplies and have none of the maintenance, noise or air pressure requirements of vacuum cups or grippers. Selecting an AEC DC-power magnet is a smart choice when you are lift, position or hold a ferrous material with a smooth, flat surface. See AEC AC-power magnets for irregular pieces, or handling air gaps.