RogueRose
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Buying Endecott Test seives - questions about metal compatibility & best models - anyone near Purdue Uni in Indiana?
Attached are photos from the auction I won & now I'm trying to find out the physical dimensions - diameter, height & weight. I email
Endecott & seller and am waiting for a reply buy who knows how long or if that will happen. The body/frames are brass with stainless steel mesh
of:
2mmm or 10 mesh
850um or 20 mesh
250um or 60 mesh
75um or 200 mesh
Here are the sizes, diam & height, they offer and frame material (SS is available for all of them, some have Brass option - marked by Brass)
diam - height - 1/2 height models - frame material
3" - 1.25" - 1" - Brass
8" - 2" - 1" - Brass
12" - 3" - 1" - Brass
18" - 3.5"
38mm - 19mm - Brass
100mm - 40mm - 20mm - Brass
150mm - 38mm
200mm - 50mm - 25mm - Brass
250mm - 60mm
300mm - 75mm - 40mm - Brass
315mm - 75mm
350mm - 60mm
400mm - 65mm
450 mm- 100mm
Since the units are brass body, these might be possibilities, but I'm guessing 8" or 12" or maybe 200mm or 300mm.
I've attached photos of the items.
The shipping quote was a little, "expensive" (what else do I expect from UPS store anymore??) b/c a large pickup fee was added after asking for a
quote before bidding. It's extortion IMO. Does anyone live close to Purdue Uni in Indiana?
I have concerns that the brass body/frame might corrode with some salts like nitrates, sulfates, phosphates, chlorides, etc. - especially if there
is ANY moisture in the solids, high humidity, a hydrate that decomp's near working environment's temp, etc. I'm kind of looking at these for sifting
pyro materials & many interesting salts - among many other materials used for filtering (Act Carb,DE,sands, some carbonates,etc). I'm going to
add a finer, maybe 325, 400, 500 or 600 - I'll pick 2 of these and make new bodies out of something - obtaining the 304 or 316L SS mesh from Ebay -
its very economical.
As for the body of the new sieves, I was thinking of making them a sq ft b/c the mesh comes in 12"x12" or 30cm^2. These have to stack very flush/flat
(maybe add a gasket in between?)so I was thinking very high grade plywood (like 15-21 laminations in 3/4" thick board) or even MDF. I'd then coat the
entire thing with a very inert/chem resistant epoxy I have to ensure the chemicals don't stick or corrode the material. All sides would be covered by
epoxy so it is waterproof and simple to clean - possibly even put in dishwasher.
Another option is to use acrylic or poly-carbonate sheets/slabs I have (rear panels from old LCD/plasma/LED monitors/TV's or from old CRT projection
TV's (the big bulky 55" to 81" that are like 22-30" deep). The large plastic "sheet" range from 1/4" to 7/16" and are the size of the display
sometimes 2" larger vet & horiz. I'd cut these to a width of maybe 1.25-2.5" which would make them that tall IDK what is ideal.
I'm stuck trying to figure out the best framing method. I've also looked at things like Tupperware/Rubbermaid containers and modifying them by
cutting out the bottom (or lid even) and while it would work for a little while I think it would be difficult in the long run. I don't know if I can
find cookie tins (round) that fit under the Endecott ones, but that isn't a major deal breaker. There are also square metal tins that may work or
even using cake pans, possibly as the bottom "catch" container and then convert the current catch container to a working sieve with the new mesh. If
anyone has any suggestions on materials or process I'd love to hear them!
So let me know if you are close to Purdue or if you can help with this project. I'm also going to build a shaker/vibrator of some kind down the road,
which sounds like a fun project!
10 mesh
20 mesh
60 mesh
200 mesh
[Edited on 7-10-2019 by RogueRose]
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wg48temp9
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Registered: 30-12-2018
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If you want stainless steel search for "stainless steel baking trays" but they are usually not cheap. Also You may get lucky in a charity shop.
I am wg48 but not on my usual pc hence the temp handle.
Thank goodness for Fleming and the fungi.
Old codger' lives matters, wear a mask and help save them.
Be aware of demagoguery, keep your frontal lobes fully engaged.
I don't know who invented mRNA vaccines but they should get a fancy medal and I hope they made a shed load of money from it.
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RogueRose
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Registered: 16-6-2014
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Quote: Originally posted by wg48temp9  | If you want stainless steel search for "stainless steel baking trays" but they are usually not cheap. Also You may get lucky in a charity shop.
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I thought about looking at charity shops and probably will. I then realized that I have lots of 3" x 48" strips of stainless steel, so I guess I
could make my own square/rectangular body but I'm not sure how I'll be able to do it. Other option is to make circles the same size as the units in
the picture.
Do ou think the brass body would be a problem for things like ammonium nitrate, ammonium sulfate and various other salts? I'm trying to think of
various salts that react with brass, I need to look that up. I think these sieves are meant more for things like pharmaceutical powders, which I doubt
are very reactive with the brass.
I could always coat the brass with epoxy I guess to make sure it doesn't react with any of the salts.
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elementcollector1
International Hazard
Posts: 2684
Registered: 28-12-2011
Location: The Known Universe
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Mood: Molten
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I'm about to move pretty close to Purdue (within driving distance, at any rate). How heavy do you expect these to be?
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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