A power supply is required in order to properly operate an electromagnet, as electromagnets must be able to release ferrous objects as readily as they attract and hold them. Release is the function of the power supply—not the magnet.
Power supplies render a reverse current that ensures positive release of even those alloy steels that retain induced magnetism extremely well. All Bunting Power Supplies are designed to provide D.C. power for industrial electromagnets.
BPS3 Power Supplies are ideal for robotics or “pick and place” applications.
Consult for technical recommendations.