The Uses Of A Lifting Magnet

So, what is a lifting magnet? A lifting magnet or magnet lifter as they are from

time to time known as is a piece of lifting gear which is created for lifting ferro-magnetic materials such as mild steel. Steel is made from a mixture of several metals, producing an alloy; the main ones being iron, nickel and manganese, these substances and their compounds are ferro- magnetic . But certain varieties of stainless-steel will not be magnetic as a result of their make up. Metals with different make-ups have differing abilities to carry magnetism, so for materials besides mild steel (which this article largely refers too) for example; high carbon steels, forged iron and ferrous alloys a reduction in the lifting capacity must be applied, this varies between the materials, therefore always refer to the lifting magnet manual.

A permanent lifting magnet is a very useful piece of lifting equipment, especially inside areas where steel is handled. They may be furthermore regularly utilised in ship yards, scrap yards and also steel workshops. The lifting magnet is best for lifting and handling steel sheets yet can also lift cylindrical steel. However the lifting capability for cylindrical objects is going to be much reduced because of the fact that it will have a much smaller contact area with the magnet.

All lifting magnets, regardless of the version used will possess a minimum thickness for the steel to be lifted, any thinner than is stated can have severe consequences. Various models will also have maximum lengths of steel that they can lift but this can be overcome by utilizing two magnets along with a spreader beam to keep the load evenly balanced.

A lifting magnet is easy to use, needing just one person to operate it, and since they need no power they can be utilized just about anyplace. Some form of hoist is commonly utilised to carry the magnet and also allow it to be lifted and lowered as needed along with the load. Once the magnet lifter is positioned onto the steel the locking lever is pushed right down to activate the permanent magnetic forces and therefore hold the load securely.

It is extremely important to be aware of factors that will have an impact on the lifting capacity and therefore safety of the magnet. Air gaps are the most common hindrance; these are likely to be brought on by roughly machined steel surfaces, dust or dirt and paint; the surface needs to be as smooth and spotless as possible to avoid these air gaps because the more air gaps present the lower the safe lifting capacity of the magnet and therefore could cause the magnet to drop the load. The magnet needs to have full and total contact with the steel to realize maximum lifting capacity. Trial lifts must always be undertaken to evaluate the hold and stability of the load, this allows re-positioning if required.

Using a lifting magnet supplies a cost efficient, secure, simple and low maintenance solution to lift steel sheets, cleanliness is priority. Inspections and testing should be carried out on a yearly basis by a competant person, for health and safety reasons.

There are countless important guidelines for the safe use of a lifting magnet, a few of the main points are going to be 1; do not use a magnet around medical devices, individuals with pacemakers or insulin pumps since the magnetic force may cause malfunction of these devices. 2; on no account magnetise the magnet (by locking the lever down) without a load. 3; never de-magnetise the lifter (by raising the lever) until the load is completely lowered safely.

by: Nikki Dale

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