Magnetpro Multipurpose Switch Magnet, 220 LB Pull-Off Force Switchable Magnetic System, On/Off Magnet for Lifting, Working&Welding Positioning, Liquid Filtration, Automation, Metal Separation

I ordered both sizes of these magnets. The large magnet has a very strong hold, although it is very difficult to hold in place push down and twist the activation lever. This magnet would be much better if it was easier to activate.The small magnet, although not is powerful works very well for holding metal parts on custom work that I fabricate, The lever is easy to twist and activate the magnet while holding the metal parts in place. I found the larger magnet would twist while trying to turn the handle making This is it difficult to keep everything lined up.I would like to try another one of these large magnets, if they could make the lever easier to operate.~K~ @ KCD fabrication

They're so much cheaper than comparable products, and seem pretty strong. There are lots of complaints about 'can't operate them', or 'the handle is too stiff' -- I thought the same thing until I figured out you have to press the entire handle assembly down to turn on or off. It's not intuitive or clearly instructed, and the handle assembly is loose enough that it's hard to figure out at first.If they last, it will be a great purchase.

There are no decent instructions included first off. Turn a quarter it starts being magnetic. It became nearly impossible to turn and had very little pull (talking couldn't hold a steel wire up). Tried forcing it and it turned roughly to 180 from start and was significantly more powerful but still couldn't hold anything (barely held itself on a steel door, couldn't even close the door). I contemplated grabbing tools to try and force it further but it felt like the handle was not going to move past the 180 from start position.Suspect there's a possibility it was either broken or jammed but it wasn't working for me. The handle was tilted out at an angle as well which is not how it appears in the product images.There were at least two positions I could get this to - 90 and 180 degrees. Attempting to get to 270 I felt no give and it felt like I would break the handle. As someone noted that you needed to fish around for where it's strongest I attempted 10ish degrees at a time and noted no difference.I wonder if at 270 degrees the thing would actually work as advertised, but as noted I could not get it to turn and the instructions just say to turn it on... not how far of a rotation it can handle, and it seemed to stop hard at 270.

The media could not be loaded. I wasn't sure what I was going to get with this item, when it arrived It was a bit bigger than I expected. Also stronger then expected.As you can see by the images it is slightly larger than the Magswitch 150.I love these on/off magnets for a myriad of jigs and shop projects. This particular one takes a 60 mm hole to be used in a jig.I tested the magnet and with straight vertical pulling I cannot remove it from my jointer bed when directly in contact with the metal. In fact, I broke my luggage scale in the test. Its max is 80lb.As for shear strength the magnet is quite strong but can be slid on the metal table when just metal to magnet. As shown in the video to increase shear strength I used adhesive backed rubber carpet tape. With this attached adding a friction/drag element I can barely move the magnet from side to side, a feature desired when making certain jigs. It should be noted that although shear strength is increased when the carpet tape is applied, the magnet loses it's very strong verticle power. Since I broke my scale I could not measure the shear strength but it is greater than the Magswitch 150 which is plenty powerful for all applications.I would recommend and purchase this item in fact, I did purchase my own additional magnet needing two for making most jigs.

As described

It's a good magnet. Strong, the sides are nice and square, but the on off switch is tougher than I would like. It can be done with one hand but it's not smooth and easy like the magswitch ones.

So this out the box was very weak, it did stick and when turned it did release. But I could pull it off as it was not strong. I figured I got a defective one, put it back in the box, to return. But then I thought about all the great reviews, and pulled it back out. I will say I thought I was going to break it as I got it to turn one more past where it seems it’s operating area was. Once in this area, it was perfect. Monster hold, and turn off switch worked. So if you think it doesn’t work, play with it a little, might just not be in right operating area.

Great price point and it has a nice finish and it's compact.It's important to note that the handle must be rotated 180 degrees. I say this because the rotation isn't very smooth and when I initially engaged it, I only rotated it 90 degrees which engaged it but only about 25%.When you get to 90 degrees, it seems to stop and that’s where most people think it's fully engaged.This is all attributed to the lack of smoothness in the rotation, although I think this may be just a characteristic of the internal magnetic force and for that reason I can live with the rotation issues.The only real reason I gave it 4 stars instead of 5 stars is that this simply is not a 220 pound magnet. I attached it to the I-beam that supports the joists in my house and attempted to hang from it and it released immediately and I’m 190 pounds. I’d say it barely hold 100 pounds.This suits my purpose as a stand for my dial indicator so I’m happy but if you’re looking for a 220 pound magnet, this isn’t the one…