MagnaLift RM-20 electric lift magnet
The RM-20 lift magnet is an easy to use magnet that has many different applications. Not only does the magnet sport at 20" diameter, but it is also available in 6", 8", 12", and 16".
The round magnets offer a high ratio of lifting capacity to magnet size and are designed to be used for flat plates, slabs, and blocks.
There are three different switches offered on the round magnets
Type I: Switch with on/off/release positions mounted on magnet, for use with 115 volts DC
Type II: No switch on magnet
Type III: Switch with on/off/release positions mounted on magnet, for use with 115 volts AC
This video features the RM-20 with a Type III switch.