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magna bend
hi guys, thinking of getting a magna bend 1300 mm unit , due to there small foot print and over all versatility-
What are the pros and cons of these unit have hear they have some limitations .. Thanks David
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David Geelong victoria Australia |
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Biggest issue I've seen is the ability to fold a hem closed is relying on the magnetic force, and sometimes doesn't do as well as the apron brake would. If bending aluminum the magnet has no effect on the material so the capacity seems to decrease significantly.
Be sure to visit this page and click on #7, Getting more out of your Magnabend. Some good helpful hints. http://aaybee.com.au/Magnabend/Magnabend_Homepage.html
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Robert Instagram @ mccartney_paint_and_custom McCartney Paint and Custom YouTube channel |
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An electro magnet will heat Al up if you tarry!
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Marc |
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The Magnabend is a DC (direct current) magnet and therefore will not heat aluminiun via the eddy current effect.
It will of course heat the metal workpiece a little by direct thermal contact if the magnet itself is already hot.
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Alan Bottomley |
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Quote:
I think that page is via the Aussie inventor of the MagnaBend - and he has been heard to be very supportive of craftsmen getting the best out of his invention - despite whomsoever is currently copying the design.
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
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I have a new version, probably made in China, which works very well; one advantage over the original Magna Bend is a clamp release button.
So far I have found no problems using it, the only limitation is 1.6mm steel maximum thickness, Cheers Charlie
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Why does dust stick to everything, but nothing sticks to dust? |
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G Day Dave.
Ive had my Magna Bender for 7 years, their a good machine but you cannot do the simplest of bends with her, common to what we require. Like trying to fold a U channel with flanges, or even a simple angle fold of 10mm x 30mm, as the magnets will not hold the clamp bar tight enough to fold something so small. The depth of fold is limited to thickness of the fold bar at 15mm. It's frustrating that you can't even do a simple cross break in a sheet as the magnet and bar will tend to flatten the first crease you do, it's OK on small thickness sheet .06mm but anything thicker you fade the break. I had to make a new BBQ fat drainer tray and had to chase the 1st break by hand as it flattened out. The other day I had to fold some seat mounts with captive nuts, again simple U channel 13mm flange x 20mm high x27mm wide x 400mm long. Had to use a friends Pan Brake. Radius bends are a treat as well as using other type of tooling for tighter or wider folds. My experience since owning this unit, shallow tight folds will break the hold down bar, or it will slide away. The only way I have found I can achieve this is to fold a flange on a large sheet then cut it down and repeat as necessary. In a nutshell, To do all the folds the machine demos for you does them well. But rarely we need to use all those type of folds.
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John EK Holden V8 |
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The Magna Brake is best suited to being a support unit for a standard brake.
When I used to do a lot of custom tanks it allows you to quickly do various radius' and get accurate closure of the seam. The radius bar is pretty much the same piece to make between an apron brake and the Magna Brake but there is no way you can close a 4 sided tank in a standard apron without some bench work. Much crisper in the Mag. Rick
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Rick Mammel |
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Quote:
Hi John, Please refer to this section of my Magnabend website: http://www.aaybee.com.au/Magnabend/M...#TopHatsSquare And also this section: http://www.aaybee.com.au/Magnabend/M...TopHatsTapered
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Alan Bottomley |
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Quote:
Like most tools and machines the Magnabend has pluses and minuses. Probably its most significant limitation is the thickness capacity. The E-type Magnabend will bend 1.6mm (16 gauge) sheet metal although the bends in that material are not particularly sharp. But provided you are working in thinner gauges then the Magnabend is generally more versatile than other folders. Have you looked at the video that we made (some time ago now!): https://youtu.be/OipSiPSRti8
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Alan Bottomley |
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