The EM300-12-122 is a high-quality, precision-made round electromagnet with a 3 inch diameter and 12 volts DC voltage that can hold up to 300 lbs. This product is specifically designed for use in various applications that require a powerful and reliable holding force. Some of the typical applications where this electromagnet can be used include door locks, conveyor systems, magnetic separators, and material handling equipment. The EM300-12-122 is a top-performing electromagnet that meets the high standards of mechanical and electrical engineers.