... 2.Charging: 8-12 hours LK310DC AC/DC magnetic yoke detector/ magnaflux yoke inspection uses ... polar distance: 0 ~ 206mmLifting force: AC 7kg , DC 32kgPower supply voltage:dc12V,ac220VCharging: 8-12 hoursLK - ... workpiece surface, made a testing debugging intensive DC magnetic field, and detect the surface and ... meets all the requirements industrial standard on DC magnetic yoke lifting force test, lifting ...