Hand Injuries

Many Australian companies have a strong focus on reducing hand and wrist injuries. They may be interested in an Active Shunting Magnet due to it’s more gentle actuation. Deep Field Magnets can be quite forceful when being turned on and off, particularly when it is operating too far from its maximum magnetic saturation thickness. For example, a 3-tonne Passive Shunting Lifting Magnet is not rated for use below 30mm and is a happier operation in the 50mm-80mm range.

The other reason Active Shunting Magnets are good at preventing hand injuries is to have no residual magnetism. This eliminates the requirement to remove swarf and grit from the bottom of the magnets between lifts thus reducing the risk of laceration type hand injuries.

Do you intend to lift material less than 10mm thick?

If so, be aware that many Passive Shunting Magnets are not rated for it. The two main reasons are that you have to apply so much force to the handle that the magnet can be damaged and once the magnet is actuated, so much of the flux is wasted below the sheet metal.

De-stacking

If you’re using the magnet to lift sheet or plate off a stack, you’re most likely better off with a Shallow Field to reduce the chance of picking up multiple pieces.

Preventing damage to Materials

Does the material have to be handled carefully to reduce the risk of scratching it? If so an Active Shunting Magnet with zero Residual Magnetism is the way to go. See our video on Residual Magnetism for more detail on this.

Handling billet or very thick steel 40-80 mm plus

A Passive Shunting Magnet is usually a good choice and really come into their own here. Just ensure that the magnet has a two-action control that prevents accidental discharge as per the Australian standard. We see many for sale in Australia that doesn’t.

We are not playing favourites here, we highly recommend our Passive Shunting Prolift range, they are robust and dependable. We also really like the Active Shunting Magswitch products for their technology and all the solutions they offer.

At MSA we want to see the right magnets used for the job, safely and at the best price whether it’s a Prolift or Magswitch MLAY.

Contact MSA today for advice on selecting the right Lifting Magnet for your application.

Passive shunting Magnets achieve their full hold force between 30mm – 80mm thick while most Active Shunting Magnets are achieving their full hold force between 9mm and 20mm. This is the range of thicknesses that are most commonly handled.

What that means is that at some thicknesses of an enormous Passive Shunting Magnet has less hold force than a small Active Shunting Magnet.

With that in mind, let’s compare some costs of the two types based on lifting material from 10-40mm thick.

Note: We are not including material thickness less than 10mm as most Passive Shunting Deep Field Magnets are not rated for it.

 

Some takeaways from this are that using a powerful Passive Shunting Magnet on thin material is expensive and that using smaller Shallow Field Magnets on 10mm and 20mm material can be an economical option.

It’s important to consider that selecting the magnet best suited to the thickness of materials you intend to handle, reduces the risk of operator error.

Contact MSA today for advice on selecting the right Lifting Magnet for your application.

MSA Magnetics provides a wide range of tools to improve the safety, efficiency, and productivity of industrial operations in the metal fabrication, lifting, and woodworking industries. The Magswitch magnets have many advantages, ranging from safety benefits to reducing downtime. These switchable magnets also have durability and speed on their side.

More and more companies are looking to reduce hand injuries by prohibiting employees and contractors from using their hands to guide loads around their factories and trucks. As this “No-Touch” Policy has become mainstream, MSA Magnetics has been approached by many companies to supply No-Touch Tools for guiding steel objects under load.

MSA’s No-Touch Tools allow the performer to work safer and be more productive as the tools help save hand and back injuries, and save time! The line-up consists of:

Magswitch Extenda-Lifts: Allows users to pick up and move hot, sharp, and dirty steel without bending over and using their hands.

Magswitch Hand Lifters: Ideal for small steel handling, dragging sheet, picking, placing and pulling parts out of burn table or handling scrap, without using your hands.

 

Magswitch MagDolly: This product has large solid rubber wheels and is suited to lift and carry sheet, pipe or any steel object over a greater distance. Again, no need to bend over or use your hands.

 

The range doesn’t end there… We are the industrial magnet experts. If your requirements have anything to do with magnets, we can provide the solution that works – Contact us today!