Magnetic Lifter It is also known as permanent lifting magnets, these magnets have an on/off handle to engage and release the magnet. They have a lifting eye for attaching a hook or sling. It's handles lock in both the on and off positions to prevent accidental release.   Features: 1, Powerful: High capacity(up to around 10000Kg), even with a big air gap. 2, Safe: an on/off handle to engage and release the magnet. 3, Low weight: Detachment strength from 70 to 110 times its weight, can be incorporated in any type of crane mechanism. 4, Maintenance: The contact magnetic poles can be rectified frequently. 5, Comfortable: Magnetisation can be activated with one hand. Model Rated Force Max. Pull Off   Force Length Width Height Shaft Length Weight (Kg) (Kg) mm mm mm mm (Kg) PML-1 100 300 92 64 70 142 3 PML-2 200 600 114 72 86 142 5 PML-3 300 900 165 88 96 176 10 PML-5 500 1500 210 92 96 208 12.5 PML-6 600 1800 216 118 120 219 20 PML-10 1000 3000 264 148 140 266 37 PML-15 1500 4500 308 172 168 285 62 PML-20 2000 6000 397 172 168 380 80 PML-30 3000 9000 443 226 217 512 160 PML-50 5000 15000 582 290 265 627 320 PML-60 6000 18000 713 290 265 707 398   Influential Factors: 1, Contact Surface: When there are any air gap between the lifter and the object that is to be lifted, the magnetic flux is obstructed, thereby reducing the magnetic pulling force. Gaps are caused by various objects (oils, paints, oxidation or rough surface). 2, Thickness: Magnetic flux of lifter requires a minimum material thickness during working. When the material which has to be lifted doesn’t have a minimum thickness, the magnetic attraction strength will decreases considerably . 3, Material: As we know steels low in carbon are good magnetic conductors, however, those with a high percentage of carbon or alloy with another material, loose magnetic properties.   Note: Capacities listed are based on lifting rigid, flat metal which has a clean and smooth surface. If used on dirty, thin, oily or curved surfaces, the capacities will be reduced. Do not use on metal that flexes. Warning: Don't use to lift people or items over people.