In the late 1940s, the Sundstrand Corporation looked to create and engineer a line of magnetic products including electromagnetic chucks, lifting magnets, and coolant separators. As they developed their line in their Ann Arbor, Michigan location, they were eventually ready to trademark the first line of Power-Grip lift magnets in 1954.
Sundstrand developed the Model 50, Model 60, and Model 80 lift battery-operated lift magnet with lifting capacity ranging from 2,000-8,000 lbs. depending on the model. Additionally, there were three different types of electric lift magnets developed, a hand lift magnet, round lift magnet, and rectangular lift magnet, coming in different sizes to fit the customer needs.
Upon the Sundstrand Corporation moving from Michigan to Illinois, the Power-Grip line of magnetic products were produced and sold out of their Belvidere, Ill. location. The products were produced until 1975, when Hitachi Magna-Lock bought the product line and moved the company back to Michigan.
With the sale and move into the Hitachi Magna-Lock product line, the Power-Grip and MagnaLift lines were joined together.
Throughout the next 13 years, the line was engineered to perfection and sold, with the corporation filed patents for the lift magnets, and the MagnaLift product line was born. Among the line was the Magna Dyne series, a more versatile line of lift magnet. While the name was dropped years later, some of the models are still sold today.