Steel band clamps?

Dec 19, 2010 11 Replies

I'm helping a pal resurrect a couple water filters that bag stone particles in a rock machining operation.



I want to repair or replace all the broken band clamps that secure the necks of the fabric filter bags to circular steel flanges inside the machine.



Envision a circular band made of ~0.08" thick galvanized steel strap, 1.5" wide and 13" in diameter when closed. An adjustable toggle latch completes the assembly to clamp the neck of the bag to the outside of a circular steel flange.



I Googled but I only revealed parts that are too narrow and / or too small in diameter.



Note that these are heavy-duty; a worm drive clamp is the wrong answer for many reasons.



In a pinch, I *could* buy some De-Sta-Co latches but I would rather find something with a lower profile, like the original parts.



May I have your thoughts on the correct name for these parts and / or possible suppliers?



Thanks!


--Winston



Try this website

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They are an excellant product. I'd use the stainless steel as it will never need to be replaced . They have all sorts of bands buckle and clips and it is a much more secure soklution than hose clips

Thanks, Grumpy but:

I didn't see a clamp on their site that was the proper size and had the adjustable toggle latch feature I require.

Their maximum 'custom' part is shy 1/4" in width and is only half as thick as I need.

They'd be a good choice for permanent clamps for sure.

--Winston

Have you poked around on McMaster for suitable toggle latches? That would seem to be the point to focus on, attaching suitable latches to some SS strip stock would be the easy part.

Oh, and post a picture somewhere we can see it and we can give you better info.

Yup. I cruised McMaster and saw many similar latches but nothing 'close enough'. A stumbling block is the layout of the 'catch' that engages the end of the latch.

On most of the McM parts, the latch is made of round bar.

These assemblies have a flat 'trough' feature that would not mate with the round bar.

I agree that I could just roll some strip and attach a toggle latch like McM 13435A61 "Exposed Adjustable Draw Latch Galvanized Steel,

1-1/2" to 1-15/16" Latch Distance In stock at $13.40 Each"

I was hoping to find an adjustable draw latch that would mate with the existing catch feature, though.

--Winston

Pete C. wrote: (...)

I just sent it to the dropbox.

If it is posted, it will be:

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Thanks

--Winston

Hey Winston,

Files didn't make it to the drop-box, or not that I can find anyway.

Try Google for "over center latches"

Lots on samples of what I THINK you want.

Take care.

Merry Christmas.

Brian Lawson, Bothwell, Ontario

Hi Brian,

Brian Lawson wrote: (...)

Yup. Apparently the photo was considered unacceptable. :)

Your clue lead me to the right part!

After further research, it appears I need a "Under-center Heavy Duty Adjustable Draw Latch" Just like the Southco 91-812-52 As on page "221" of:

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Thanks and Merry Christmas to you.

--Winston

In rec.crafts.metalworking on 2010-12-19 Winston wrote: ...

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Here's a link from googling for quick release band clamps:

Has several styles of clamps, and apparently custom lengths and widths. Max thickness seems to be 0.062" SS with widths from 1.25" to 3" in that thickness.

(...)

I had a look at that, too.

Turns out I need an "Under Center" style rather than an "Over Center" style.

I apologize for apparently submitting my dropbox picture incorrectly. That image would have supplied the necessary ~950 words necessary to show the need.

Thanks James!

--Winston

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