Permanent Magnetic Lifter selection starts with a clear view of the actual weight shape and contact surface of every item you plan to move. The unit relies on rare earth material inside a compact housing activated by a simple lever. Once the lever turns the internal flux path directs force into ferrous steel. Capacity ratings assume ideal test conditions so real jobs need careful matching.

Begin with the load itself. Weigh each piece or use reliable scale data for the heaviest single item plus any dynamic effects from swinging or tilting. Note the center of gravity. Place the attachment point so the force line passes through that center. Offset placement creates peeling forces that lower the effective hold. Round bars pipes or irregular shapes reduce the rated flat capacity often to roughly one third so confirm the model includes a V groove if cylinders form part of your work.

Surface conditions change the outcome more than many buyers expect. Material thickness ranks high among variables. Below the minimum depth listed by the maker the flux cannot fully develop and the available force drops. A six millimeter plate may deliver far less than a sixty millimeter plate of the same steel grade. Always consult the derating chart supplied with the model.

Cleanliness matters equally. Mill scale rust paint oil or dirt create air gaps. Even a fraction of a millimeter gap weakens the circuit. Wipe both the pole face and the workpiece before every lift. Ground or machined surfaces give the closest contact. Castings or rough plate require a larger safety margin. Low carbon mild steel responds well while higher carbon or alloy grades may need further reduction. Cast iron can cut available force by half in some cases.

Temperature stays within the normal range of minus forty to eighty degrees Celsius for standard units. Higher heat demands special designs. Vibration or shock during travel also calls for extra margin. Never exceed the working load limit after all adjustments. International practice sets a three to one or three point five to one ratio between breakaway force and rated capacity under ideal plates. Real conditions rarely stay ideal so keep actual service loads well below the nameplate figure.

Inspect the housing lever lock and lifting eye before each shift. Cracks deformation or loose fasteners remove the unit from service until repaired. Store it with the lever in the off position on a wooden block and apply light oil to the pole faces to limit corrosion.

Kaixinmagnetic designs its range with these practical limits in mind so operators can match models from one hundred kilograms to several tonnes against everyday steel plate and round stock. The lever locks in the on position once tension is applied reducing accidental release risk.

When the surface is clean the thickness is adequate and the weight sits inside the adjusted rating the equipment moves material without chains or slings. One person can often handle jobs that previously needed two. Keep records of daily checks and periodic thorough examinations to stay aligned with local lifting regulations.

For full model details capacity charts and surface derating tables visit https://www.magnetic-lift.com/product/ and compare the options against your own load list and contact conditions.