Small & Cramped shop in urgent need of dust collection for Grinder!

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Aug 2, 2010
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Hey guys, I apologize in advance for the long post, but I want to provide as much info about my specific needs in order to prevent any redundant answers/info/suggestions that may be found in many other dust collection threads.

So I've been trying to decide which combination of cyclone and dust collector system to use for my grinder in my shop for a while now. I've refused to do any more grinding until I get one set up because it's just Soo dang cramped and already too dirty in my shop, (and yes, I do have a water bucket under my grinder). There's just so much stuff in there that 10 minutes of grinding can create an hours worth of clean up, and that's only the spots I can access. Literally EVERYTHING gets covered in dust, fast. I need to be able collect steel and micarta/G10/wood etc. dust. It seems to be a common problem and concern though regarding steel sparks cathing things on fire.

I know there are already a bunch of threads about dust collection systems and I've searched and read through a lot of them. I'm pretty overwhelmed regarding what to get due to my limitations, so I was just wondering if I could get some advice on a specific cyclone & dust collector system I'm looking at buying that "seem" like they'd work with my limitations.

First off, I just want to point out a few considerations (limitations) I need to work with. So, my shop is in a shed and it's not independantly wired. All power comes from an extension cord from my kitchen that comes out of one of the kitchen windows and then up through underneath the shed/shop floor, which then plungs into an outlet strip. The point of bringing this up this up is that my grinder uses a HF 1hp 110V motor that uses 13+ amps! So when looking at dust vacs/collectors, I needed to find something with lower amperage and also in the ~110 volt area, since I have no access to 220V.

Another consideration is space, or a big lack thereof, since two of the four walls have racks on them (that stick out 2 feet) filled with junk and random storage stuff that I can't move since a lot of it is my dads, and the other wall is the big door, it's a Tuff Shed. The other factor for chosing a system is the noise level. It doesn't have to be silent obviously, but my grinder is already a bit loud and I have an older (it's missing parts etc.) Ridgid shop vac that by itself ,for example is VERY harsh, and my shop is fairly close to the bedrooms in our house as well as our neighbors house, (nicest neighbors btw, God bless 'em.) FWIW, I've looked on youtube at noise insulation boxes for shop vacs but most look too big for my space, as a typical shop vac (like our Ridgid) would already be about the max size when having to also add a spark trap/cyclone bucket too. Also, just incase anybody might suggest it, I also can't vent to the outside or cut any holes in the walls.

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OK, so with all that info out of the way, what I'm considering buying is a dust deputy, and this Harbor Freight "portable" dust collector (see below). I was also planning on putting an inch or so of water in the 5 gallon bucket that the dust deputy attaches to ta help put out any sparks. There are just so many different set ups out there it's overwhelming, especially since I don't have any experience with them. But my space, power, and noise limitations make it even harder to choose a dust collection system, and of course my budget as well.

Also, before anybody suggests it, I do also plan on getting a box fan and facing it out the window (I used to have one but it died after a few years) and taping a furnace filter on the back side of it. The one thing my shop/shed has going for it is that is has two windows, one of them on one wall and the other on the opposite wall, so that helps with air flow with the fan facing out the window.

Please help me, lol. I have literally been at a grinding stand still since the beginning of July! I really need to get something worked out quick so I can start making knives again, and also finish the ones that family friends are waiting on.

So Here are pictures and links to what I was considering buying, what do you guys think?

First the dust deputy, I'm sure most guys have seen them:

http://www.amazon.com/Oneida-AXD000..._UL160_SR115,160_&refRID=0WSWWANVXX99VQ3KD83H

41OHpcOs6DL._SY450_.jpg




And then the dust collector that I would connect to the dust deputy:

What really interested me about this dust collector is that for one, it takes up very little space, it's "only" 7 amps and it's specs say it has ~10 times the suction of a typical shop vac. Plus it has good reviews, apart from some guys who've bought one to use "as" or in place of their shop vac. I'm also guessing it's a lot less noisy, at least compared to the Ridgid shop vac I have, but I could be wrong.

http://www.harborfreight.com/13-gallon-industrial-portable-dust-collector-31810.html

image_17645.jpg


Anyway, I really appreciate anybody who took the time to read my long post, and appreciate any and all help. :)

~Paul

My YT Channel Lsubslimed
... (It's been quite a while since I've posted any new vids)
 
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[video=youtube;8hHpVpoI4Cs]https://www.youtube.com/watch?v=8hHpVpoI4Cs[/video]

I don't know how well a dust deputy works with sparks. It's best to have a wet system.
 
I don't know how well a dust deputy works with sparks. It's best to have a wet system.

I actually watched (and liked ;) ) that vid the other day in the hammer & tongs subforum. Looks great, but I just can't have that much noise unfortunately, shop vacs are sooo loud, at least the one that I have, and also in my small shop. :thumbdn:

Yea I was also wondering about how the dust deputy would be with sparks, even with water added, but that's one reason I'm asking here.

Thank you though, J, for sharing it again, I appreciate it. :)
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To Frank Niro , if you're reading this I'd sure like to know a bit more about your setup that you mentioned in a thread a while back, regarding you having to move etc. It sounded like you had/have similar limitations that I have but where able to utilize a dust deputy. I'm referring to your post (#6) in this thread: http://www.bladeforums.com/forums/showthread.php/1095793-Dust-collection-systems-Whatcha-got

~Paul

My YT Channel Lsubslimed
... (It's been quite a while since I've posted any new vids)
 
Different set of circumstances, but dust collection issue nonetheless.

I have an upright blast cabinet in my garage with 180grit SiC in it. It has a 400CFM dust collector attached, but dust still gets in the air when moving things in/out of the cabinet.
To limit contamination, I made a "tent room" around the unit with construction plastic, then provided some negative pressure with an exhaust fan blowing out of the garage.
Works great.

Now, shop vacs are loud becasue they run small fan blades at very high speed to move a decent volume of air. What you need to get is a high-volume, low speed setup. It can be done on 110v (my garage only has 15 amp service and I can run my compressor plus dust collection system).
Combine it with a water buffer (for sparks AND to improve filtration & keep your filter clean longer) and the tent idea, and you'll have much less cleanup to deal with.
 
The best system for your constraints is to make the work bench movable .... and roll it out of the shop when grinding. When done for the day, blow it off with a leaf blower and roll it back in the shed.

I am sure you already know to wear a face shield and respirator. If you run a shop vac and a grinder in a small enclosed space, you would be wise to also wear good aural protection. The decibel output as well as frequency is really bad on your hearing.
 
If you run a shop vac and a grinder in a small enclosed space, you would be wise to also wear good aural protection. The decibel output as well as frequency is really bad on your hearing.

This is good advice, regardless of whether or not you're using a shop vac... Protect your ears!!! Nothing we do is good for them, in the long run.
 
If you have 2 windows, there would be no benefit in adding a filter to your exhaust fan. Just let it blow the junk out of the window.
 
[video=youtube;8hHpVpoI4Cs]https://www.youtube.com/watch?v=8hHpVpoI4Cs[/video]

I don't know how well a dust deputy works with sparks. It's best to have a wet system.

Alright, I think I'll go with a system like yours, J.

However, I would still like to put a dust deputy inbetween the spark bong and the wet dry vac, and I'm not sure if that would effect the suction. :confused: The main reason being because the wet dry vac I'm looking at buying is about $350! And I would want to make it last, which the dust deputy would help with normally, but I'm just not sure how it all (suction etc.) would work hooked up to a spark bong as well.

The only reason I am even considering paying that amount for a shop vac is because the decibel rating is INCREDIBLY LOW at only 62 dB(a), where most shop vacs are higher than 80 decibels and where a normal conversation is rated at around 60 decibels. Also, because I freakin need a dust collection system in my shop lol. This is more quiet than a Fein or Festool, which are 65-66 decibels.

Here is what I'm looking to buy, It's a Stihl SE 112:

https://agrishopinc.stihldealer.net...87856.568490540.1451095903#specifications_tab

se122.png


Here are the "main" specs, incase you would rather not click on the link above:

VOLTAGE- 120 V, 60 hz

WEIGHT- 10.0 kg (22.0 lbs.)

SUCTION- 230 mbar (91 in H2O)

AIR FLOW- 3200 l/min. (113 cfm)

SOUND PRESSURE RATING- 62 dB(A)

CONTAINER CAPACITY- 30 l (7.9 gal.)

ENGINE POWER- 1000 w (8.3 amps)


So the "layout" plan is: Grinder===Spark Bong===Dust Deputy===Wet/Dry Vac

Any thoughts or suggestions on this plan? Thanks again. :)

~Paul

My YT Channel Lsubslimed
... (It's been quite a while since I've posted any new vids)
 
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As long as there are no suction leaks, you should have no problem.
 
What you need to do is make up a new 10-12 gauge cord and a new place to plug it in. You need a 30 amp socket that is 220 VAC. The 220 can be split into two 110VAC legs at the shed. Plug the grinder into one and the vac and lights into the other. In the house the cord can be plugged into a dryer outlet or an AC outlet. The best solution would be to run a new circuit from the breaker box to an outside weatherproof box. The box can be on the side of the house under the kitchen window or at any convenient spot. Use a twist-lock plug and outlet. If this paragraph does not sound simple and familiar to you, get someone good at wiring, or an electrician, to do it for you.

The problem you have is power. You are already using 13+ amps. the vacuum draws 8 amps. That exceeded any circuit the extension cord could be plugged into in the kitchen. I won't even go into line drop due to the length of the cord. Also, the cord may not even be rated for 20 amps.

On the new vacuum - Use 2.5" hoses for everything. The vacuum can be set outside to make the shed quieter.
 
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I think you'll be let down by the SERIOUS reduction in suction from all of these accessories. Don't get me wrong, I think the dust deputy is a great asset - I use one when grinding handle materials, but even just that one piece in the equation drops my big shopvac's suction pretty dramatically.
 
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