Best lift magnets according to redditors
We found 28 Reddit comments discussing the best lift magnets. We ranked the 17 resulting products by number of redditors who mentioned them. Here are the top 20.
We found 28 Reddit comments discussing the best lift magnets. We ranked the 17 resulting products by number of redditors who mentioned them. Here are the top 20.
Not OP, but some Google-fu: https://www.amazon.com/Brute-Magnetics-Neodymium-Countersunk-Diameter/dp/B01LYU81DB
Edit: I suck. I can't make link posting work right now. Just this: MAG-MATE PNL1600 Powerlift Lift Magnet with 1600 lb Capacity https://www.amazon.com/dp/B007H98D0Q/ref=cm_sw_r_cp_apa_i_ub.0DbCSH7X67
How about this?
If you google brute magnets, you’ll find what I believe is their 880 pound pull magnet. IMO it’s one of the best for the price and really good quality!
link to amazon
Something like this would be ideal.
Powerful Round Neodymium Magnet with Eyebolt Diameter 2.95INCH(75mm) for Retrieving in River and Magnetic Fishing (NJ 75MM)
https://www.amazon.com/dp/B07634BKTG/ref=cm_sw_r_cp_api_OfD.zbRW9AW06
I used magnets I found at my local hardware store - about 2.5 inch diameter each with a metal shell - something like this. Don't remember but I think they were rated at around 40#. I drilled 2 holes in the metal cup and made basically just a spacer so the screws in the lamp would work.
If someone doesn't want to make their own, you can buy them from here - that's where I got my idea (she's is in our club, and they have her light on the demo lathe).
400lbs. Found this setup on amazon: https://www.amazon.com/dp/B07VHFWRF9/ref=cm_sw_r_cp_api_i_Ry5EDbHKSXGS2
https://www.amazon.com/gp/aw/d/B07R32GTL2?ref=ppx_pt2_mob_b_prod_image
https://www.amazon.com/gp/product/B07RCD3M1L/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Get one of these on a rope.
https://www.amazon.com/Strong-Neodymium-Fishing-Pulling-Magnets/dp/B07QVJHLVW/ref=sr_1_14?crid=3L0DETI094WUH&keywords=neodymium+magnets&qid=1559321120&s=gateway&sprefix=neody%2Caps%2C214&sr=8-14
I suggest that you check out /r/magnetfishing for lots of good info and to see what others are finding. Also, try searching Youtube.com for lots of interesting videos on what can be found. I have mostly found junk! But, I keep some of the junk and may sell it as scrap one of these days.
Here is the magnet setup that I purchased: https://www.amazon.com/Magnet-Fishing-Kit-575-Pull/dp/B07QNTVJP6/ref=sr_1_1?keywords=Magnet+Fishing+Kit+575+LBS+Pull+%28N52%29+-+Round+Neodymium+Fishing+Magnet%2C+2.95%22+Magnet+with+65+feet+8mm+Rope+and+Carabiner+with+Water+Proof+Carry+Case+and+Gloves&qid=1567184252&s=gateway&sr=8-1
If I had it to do over, I would probably have purchased a double sided magnet. Probably something over 1500 pounds. It's just my guess and from a little research, that the double sided would work better. The reason being, is the magnet will lay flat on the riverbed surface and be more likely to attach to something. Conversely, my magnet drags around on its side. Just dragging my magnet through the yard, metal has to be fairly close before it attaches.
The "holy grail" for magnet fishers is to find a gun. I'm not so excited about this possibility, I simply like to find things. Finding a gun has a few problems - What do you do with it? Was it involved in a crime? My guess is that if you find one, it's probably been involved in a crime, so I would probably turn it in (maybe).
Other tips: the process can be a dirty one, dress accordingly. You will definitely get wet. Be prepared to know how to get your magnet unstuck. There are methods that you can find in the magnetfishing group I mentioned above. Take a hammer and a block of wood so that you can remove your magnet if you get it stuck to something flat. Be careful with these magnets, they are very strong and can do some damage. I got mine stuck to the side of my truck once - not fun. Thankfully my truck is a '91 model and the marks the magnet left were nothing compared to the hole in the front fender!
Let me know if you decide to try it!
I use some kind of magnet solder arms thing with an alligator clip one end and a magnet on the other. Has a flexible arm and works pretty good for like $12.
FYI, it's this thing
What about this bundle?
https://www.amazon.com/925lb-Fishing-Magnet-Bundle-Pack/dp/B07RCD3M1L/ref=mp_s_a_1_1_sspa?keywords=brute+magnetics+fishing+magnet&qid=1573965317&sprefix=brute+ma&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExRFFDWFNFMTVDSFAyJmVuY3J5cHRlZElkPUEwOTA1OTg2T0JPN1NSNllGOUNaJmVuY3J5cHRlZEFkSWQ9QTAzNTE5NTJGOEw1WDlHVEpTTFEmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
https://www.amazon.com/dp/B07QNTVJP6/ref=cm_sw_r_other_apa_i_OKYTDb6REAW3A
uxcell 12V DC 180N Electric Lifting Magnet Electromagnet Solenoid Lift Holding https://www.amazon.com/dp/B01MUA0ZLE/ref=cm_sw_r_cp_api_i_arH3Cb4CWGK8D
That’ll do?
Depending on the type of metal some neodymium magnets would easily be able to exert enough force to adhere the eye bolts. You would just need to go with some of the larger ones. Just be careful because the attraction power of them can be intense.
https://www.amazon.com/Fishing-Countersunk-Diameter-Neodymium-Retrieving/dp/B07L89JVR7/ref=mp_s_a_1_1_sspa?keywords=large%2Bneodymium%2Bmagnets&qid=1559103987&s=gateway&sprefix=large%2Bneod&sr=8-1-spons&psc=1&th=1
748lbs of pull strength means once it's on there you might not be easily removing it though. Although it does meet your criteria haha.
This one is a bit more reasonable https://www.amazon.com/BIGTEDDY-Recovery-Neodymium-Countersunk-Magnetic/dp/B0764G7272/ref=mp_s_a_1_12?keywords=large+neodymium+magnets&qid=1559103987&s=gateway&sprefix=large+neod&sr=8-12
Now if the cladding is aluminum or real stainless then magnets won't do much. But that's an easy thing to test with a magnet off your fridge.
Yup it’s the brute magnet on Amazon.
Brute Magnetics Double Sided... https://www.amazon.com/dp/B073Z4J5T8?ref=ppx_pop_mob_ap_share
I used standard magnets.. 15 dollars, saved 25 bucks (because you need two or these for a gun/mag)
http://www.amazon.com/CMS-Magnetics%C2%AE-Holding-RB50-Magnets/dp/B000WMQFQE
it's enough for two handguns (if one small, one large) and two magazines.
TL;DR - The math isn't very accurate, and electromagnet circuits require a few considerations.
​
Not an expert, but I did a little bit of searching and found an equation that might be relevant. A lot of the ones we've learned in lecture so far only deal with ideal solenoids. That is, they model the magnetic and electric fields inside the coil. With real world electromagnets, mathematically modeling the field (let alone calculating the force it exerts on a nearby ferromagnetic object) gets really complicated really fast. However, we're in luck.
I did some searching for commercial electromagnets and noticed that a most of them have a specification called "holding force". For some reason, half of them list this spec in kg and the other half list it in Newtons (N). If it's in kg, multiply by 9.8 to convert it to newtons.
The holding force seems to be the maximum force exerted by the EM when in direct contact with a ferromagnetic object, but WE want to know the force at a distance. According to Daycounter Engineering Solutions, the force at distance can be calculated with the following:
Force = (Holding Force Spec)\^2 x (magnetic constant) * (Area of solenoid's face) / (distance \^2)
magnetic constant = 4 * pi * 10\^-7
*Measure area and distance in meters
A quick look at this equation tells me that whatever result we get is going to be a very, very rough approximation. Now for the math.
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Say an average nail weight 15g = 0.015 kg = 0.147 N
We need a magnetic force greater than that to pick it up. Note that this doesn't account for the speed of the bike. In reality, we'll need something much stronger to lift it. Let's double it for approximation's sake.
F (needed) = 2 x F (gravity) = 0.294 = 0.3
We also know that our distance is 2.5" off the ground = 0.0635 m = 0.06 m
Most of the EMs I found on Amazon have a surface area of approximately 0.008 m\^2
Plugging all of these numbers into that first equation and solving for the Holding Force Spec yields:
Holding Force = 104 Newtons (N)
*I'm about 68% confident that this result is semi-accurate.*
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Like I said in my previous comment, you need pretty beefy boi. EMs at this strength totally exist though. Here's one I found on amazon. You might also consider, in a more accurate equation, that you might not be biking directly over the object (reducing it's effect dramatically), the objects' varying ferromagnetic compositions, and the fact that the magnet is moving (relatively fast considering the forces involved). Powering the magnet for long-ish periods of time (10 mins) will also cause it to heat up, increasing the wire's resistance, and reducing the magnetic field. Depending on the bike's battery, you may also need to employ a DC-DC boost / buck converter to achieve the right voltage. And, of course, safety is a big worry too.
Hope you found some of this interesting. I had a fun time reviewing my notes and searching around the internet for this post. Cheers.
https://www.amazon.com/gp/product/B01LYU81DB/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Brute 880, 20% off coupon, first time users of the amazon assistant download can search for it from there and get another 10 bucks off, pick a slower than 2 day free delivery date and they give you a little bit more credit.
turns 46 bucks into 26 faster than I could type this, gp, not counting the 6% back by using the amazon credit card or that annoying no interest for 6 months.
Worked for me, not like that jacked up JC Penny sale for womens swim wear half off. False advertising that day. gp
So.... those magnets would work just fine in city driving. Just keep it off the interstate, unless you go for the jumbo magnets.
That's a very specific size. This is the closest I can find. Good luck. Skilled Crafter Magnets for Crafts.
100 in a Box. Grade 5, 20mm x 3mm (13/16"). Round Ferrite / Ceramic Disc Magnet. Best for Art & Craft Projects, Refrigerator, Whiteboard, Bottle Cap, Science https://www.amazon.com/dp/B01E75OFG8/ref=cm_sw_r_other_apa_hWrRybNW77HRE
Prob make one yourself. It’s just an electromagnet right?
55LB 25kg Electric Lifting Magnet Electromagnet Solenoid Lift Holding 40mm https://www.amazon.com/dp/B00BHT49NM/ref=cm_sw_r_cp_api_7AC8BbARN5HZ0
They look like this
I got mine at home depot for 2.50 each. They have a magnet inside the metal so one side is magnetic but the other isn't. I'm gluing one inside a button cover for the shoulder clasps for my cape. The 2 clasps should hold the cape on by themselves actually.
Here's an amazon link
https://www.amazon.com/CMS-Magnetics-Pulling-RB50-Magnets/dp/B000WMQFQE/ref=sr_1_26?s=hi&ie=UTF8&qid=1540851817&sr=1-26&keywords=magnet