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I often see a risky mistake in magnet selection. A buyer asks for ton capacity first. The real lifting condition may already reduce holding force. Air gap affects magnet selection because it reduces effective magnetic holding force under real site conditions.1 I must check rust, paint, scale, oil, roughness, flatness,

I see many buyers feel unsure when they compare lifting magnets. The name sounds simple, but a wrong choice can slow work and create risk. An electro-permanent magnet is a lifting magnet that uses short electric pulses to switch its magnetic state on or off1. It does not need continuous