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Thread: Welding magnetic clamps
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23rd Feb 2020, 01:35 PM #1
Welding magnetic clamps
After some recommendations for welding clamps,
Similar to the link,
I had a couple I brought when I lived in the UK and they were excellent in that the magnets were strong.
But ,the labels have all worn off !!.
I brought a couple a few years back, and there P week to say the least.
But, I should have know better considering were I brought them.
I don’t mind spending some money but ,I don’t want to go over the top either,
They will be used for holding 40/50 mm square tube at ninety degrees.
2 pc Magnetic Welding Holders Soldering Tools, Multi-angle 30°60°45°90° Welding Holder Jig with Center Hole for Soldering, Assembly, Welding, and Pipes Installation https://www.amazon.com.au/dp/B07F7Y6..._EeEuEbK0J7RX6
Cheers Matt.
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23rd Feb 2020, 01:49 PM #2Most Valued Member
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Hi Matt, I've found that most of the magnetic "clamps" are useless, they fill up with metal very easily, trying to use them on heavy material, they don't hold well. Mind you the ones I'm referring to are the type from the big green shed.
The ones you've linked to, are small only 59X50X12, how strong they are, who knows?
Personally I'd make a couple of right angled squares, you could make them out of 25mm angle, that can be clamped on to what you're making. Have a couple of these at work, they're about 600X300 used 50X50X3mm angle and are so much better, in my opinion.
KrynTo grow old is mandatory, growing up is optional.
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23rd Feb 2020, 02:23 PM #3Member: Blue and white apron brigade
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I have few budget mag clamps but tend to use them to temporarily hold stuf while I attach other more study clamps and right angled squares.
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23rd Feb 2020, 05:06 PM #4Most Valued Member
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I have a couple of those cheaper magnetic clamps.
Everything sticks to them which is a PITA. Luckily the magnets are sandwiched and recessed so cleaning the swarf off the contact surfaces is not too bad. However, the deal breaker is the fact that they are not close enough to 90 degrees even for low tollerance work!
One day I will put them on the mill and skim a bit off. At least then i can make e a half way decent and accurate box or similar!
I like the angle iron idea!
Simon
Sent from my SM-G970F using TapatalkGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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23rd Feb 2020, 05:20 PM #5
Thank you for the replies guys,
I feel I’m gently being pushed towards Kryn,s Igor Bobs ideas
Which are not bad !
I will try to find it on you tube an idea around using a plastic zip lock bag to keep them clean,
But I can’t remember all the details.
They are a Royal pain in the behind too attracting ever piece of metal swaff in a mile radius tho.
Cheers Matt.
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23rd Feb 2020, 05:25 PM #6Philomath in training
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I have one from these guys and it works alright -
Magnetic welding clamps, Mag-Mate Magswitch equivalent products Australia, magnetic clamps and workholders, magnetic clamps for Welding & fixing, magnetic handles for steel sheet, drag-on magnetic handles put a handle on steel sheet, Mag-Mate Magneti
But most of the time I don't use them, preferring hard clamping - the main reason is that a decent mag clamp will pull the arc if it is too close.
Michael
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23rd Feb 2020, 05:35 PM #7
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23rd Feb 2020, 06:17 PM #8
I have a collection of the Stronghand equivalents but only use them for tacking up. To stop the swarf attaching I just wrap them in a single layer of glad-wrap. If I forget to do that then a decent blast of compressed air clears them nicely...
Stronghand also make some extra strong fixed and adjustable magnetic squares but they are quite pricey.
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23rd Feb 2020, 06:50 PM #9
I've got a heap of the serpent and dove green welding magnets. They do fill with rubbish, but nothing an wire brush or a stiff bristled shop brush won't fix.
I also have some of the mag switch units, but it's only a small one and not ideal for anything more than a small job.
Most of the time I use a 600mm builders square, and I've just ground off the corner of the square so it fits flush with any fillet welds that might be there. Just be judicious with your tack placement and you can make it work with most things.
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23rd Feb 2020, 07:52 PM #10
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23rd Feb 2020, 09:03 PM #11Most Valued Member
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I've been through a few squares, from el cheapo to Eclipse, Stanley etc, CHECK that they are square!!!!! I've had a few that were about 3mm out on the long side, also keep it in the centre of your work, the APE rentice we used to have, used to hold them on an angle and call it square!!!!!
I will try to find it on you tube an idea around using a plastic zip lock bag to keep them clean,
But I can’t remember all the details.
KrynTo grow old is mandatory, growing up is optional.
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