Air compressor shelf.

[tymbo]

I did this years ago with my 80 gallon vertical tank compressor. It was only 3 feet off the floor, other than that, exactly what you are planning. I had a 3 layer plywood shelf with 2x4 frame and vibration pads under the feet.

Yes, it did transmit vibrations to the walls, which is why I eventually put it back on the floor. The extra floor space just wasn't worth the noise.

If I had to do it over, I would build a free standing frame that was isolated from the walls.

 

[Folkert]

This is how I mounted my 150 liter compressor and air dryer to a brick and concrete wall and partly to the ceiling. The compressor is on rubber shockmounts.

 

[XJSuperman]

Ive seen it done in a steel building. No problems there. On a regular wood frame wall Im not sure. Im less concerned about your shelf construction, and more concerned with how it affects the wall.

 

[ez-duzit]

...I planned on dropping support from the trusses...

This just keeps getting more bizarre. Do NOT load the trusses.

Because it is a corner location, you can set a beam, diagonally, resting on crippled studs to take the load so it is not cantilevered off the wall. Then only one corner of the platform will require an angled brace to the wall.

 

[PCMusicGuy]

Sounds like splitting up the tank and the pump/motor is the best solution.

 

[lis2323]

Build a shelf under it to store your cans of paint. The vibration will keep the liquid in suspension and you will always have paint ready to go. [emoji3]


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[nadogail]

Good Luck with that, you are going to need lots of luck.

 

[firebirdparts]

I would not put that kind of a load cantilevered on a wall, but if what’s above can hold half of it, I wouldn’t feel bad about having that load pulling straight down.

 

[Blazinzuk]

This just keeps getting more bizarre. Do NOT load the trusses.

Because it is a corner location, you can set a beam, diagonally, resting on crippled studs to take the load so it is not cantilevered off the wall. Then only one corner of the platform will require an angled brace to the wall.

I know the conventional and safest way to go is not to put any weight on trusses. But from talking to several more knowledgeable than me people and since this will not even be close to the main support but an added safety, to further spread the load. And honestly after seeing shelf after shelf after shelf some 40 years old suspended from trusses, I'm certainly willing to take the apparently bizzare risk involved with adding a couple supports from the trusses.

 

[Blazinzuk]

Good Luck with that, you are going to need lots of luck.

Reasons man I need reasons. I mean I realize this site has some pretty stellar builders and ideas but this is not even close to a new idea. I've seen it done. With some seriously janky stuff. You can call me a ***** or idiot, I don't break too easy, but reasons for why I'm gonna need luck get me thinking, telling me I need luck do not

 

[nadogail]

I am not going to impugn your intelligence or education.

As I understand your request for my opinion, you are asking about a dynamic heavy vibrating weight on a wall shelf.

Once you engineer the shelf, you then are faced with the problem of getting the compressor onto the shelf and then keeping it there while it tries to vibrate the shelf apart or walk its way off the shelf.

Good luck with all that.

 

[lis2323]

I can truly understand the OP’s objective to free up floor space.

Personally if placing the compressor in a lean-to structure outside is out of the question I would leave the compressor mounted on the floor and build shelving ABOVE it. Don’t know about you guys but storage space is always necessary for me.

Even IF you were to mount the unit up put of the way I doubt anyone would want to stand or work under it.

JMHO


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[Blazinzuk]

I am not going to impugn your intelligence or education.

As I understand your request for my opinion, you are asking about a dynamic heavy vibrating weight on a wall shelf.

Once you engineer the shelf, you then are faced with the problem of getting the compressor onto the shelf and then keeping it there while it tries to vibrate the shelf apart or walk its way off the shelf.

Good luck with all that.

In all seriousness I appreciate the input. Thank you

 

[ez-duzit]

This just keeps getting more bizarre. Do NOT load the trusses.

Because it is a corner location, you can set a beam, diagonally, resting on crippled studs to take the load so it is not cantilevered off the wall. Then only one corner of the platform will require an angled brace to the wall.

I know the conventional and safest way to go is not to put any weight on trusses. But from talking to several more knowledgeable than me people and since this will not even be close to the main support but an added safety, to further spread the load. And honestly after seeing shelf after shelf after shelf some 40 years old suspended from trusses, I'm certainly willing to take the apparently bizzare risk involved with adding a couple supports from the trusses.

After I explained how you could safely mount this while avoiding the unsafe approaches, you choose to completely ignore the safe concept and argue in favor of the unsafe. How long did you have to search to find those "more-knowledgeable-people-than-you"? Just curious?

 

[Beags86]

OMG dude are you forkin crazy?!?!
What the hell are you thinking, obviously this shelf will come crashing down, killing nuns, children, kittens, puppies, and priests.
I hope you have seriously thought about the ramifications of this!

 

[GrayFlattop]

Sounds like splitting up the tank and the pump/motor is the best solution.

I did this 25 + years ago and never looked back. I did support the "shelf" with a wing wall, but it worked out fine for my set-up. Tank up top - pump and motor on the floor. Much easier to change the compressor oil every 10 years or so...

And for the tank drain, I just extended the drain with some pipe and a ball valve. I can easily hang a bucket on there and drain down any condensate.

 

[bad_idea]

If you do decide to mount the tank up high and the pump down low - keep in mind the moisture in the discharge line from the pump will drip back into the pump outlet after the pump shuts off if you don't route the pipe in a way to prevent that. I would slope the pump outlet downward a few feet to a tee, one side of the tee going up to the tank and the other side of the tee down to a ball valve to drain the condensate.

Terrible run on sentence, but hopefully the point is made.

 

[lis2323]

If you do decide to mount the tank up high and the pump down low - keep in mind the moisture in the discharge line from the pump will drip back into the pump outlet after the pump shuts off if you don't route the pipe in a way to prevent that. I would slope the pump outlet downward a few feet to a tee, one side of the tee going up to the tank and the other side of the tee down to a ball valve to drain the condensate.

Terrible run on sentence, but hopefully the point is made.

Good advice. Also GOOD example of run on sentence. [emoji3]

 

[GrayFlattop]

LOL - point made and correct!

 

[James-W]

I know the conventional and safest way to go is not to put any weight on trusses. But from talking to several more knowledgeable than me people and since this will not even be close to the main support but an added safety, to further spread the load. And honestly after seeing shelf after shelf after shelf some 40 years old suspended from trusses, I'm certainly willing to take the apparently bizarre risk involved with adding a couple supports from the trusses.

Sounds to me like your mind is/was made up right from the start. I suggest you go right ahead and build that shelf. Then, in a couple months, let us know how it turned out.

 

[Citation]

OK, I haven't fully thought this idea out but perhaps it will spark some additional thought.

First, I really like the idea of separating pump and tank. You could certainly get the pump to take less space and perhaps could be placed on a separate shelf down the wall. Then you would have a ~350 lb tank and 300 lb pump independently supported.

As for a strong shelf here is my thought. Note I have not done any calculations on this and while I am an engineer, I'm not a civil engineer thus I don't know what sort of loads I need to watch out for in a building. So start with two I beams attached to the wall. These will support the shelf and the vertical load of the compressor. The I beam should go from floor to header at the top of the wall. That will give it a long lever arm to counteract the torque from the weight of the compressor. One person suggested about 700 ftlb of torque assuming COG 1' from the wall. I suspect it would be further so that 700 might be more like 1400. Anyway, by attaching the I beam to floor and header you now have a lever arm that is (based on the picture) 14' long. So even if the torque is 1400lb you are now talking about 100lb of force applied to the top of the wall. The I beam in the corner can of course be braced on the end wall. With the I beam in place the shelf part should be much easier to build. I don't know how big the I beam (or square stock etc) would have to be but I suspect that could be calculated rather easily. The critical thing here is the twisting moment of the shelf isn't applied to the wall, nor is the vertical load. The wall only sees the pull at the very top. As I don't do this sort of work I can't say the best way to tie into the beam at the top of the wall but I suspect it wouldn't be too bad given the relatively low load.

This random website puts a 6"x9"x14' I beam at about $150. So a pair at $300 wouldn't be too bad in terms of cost. It looks like the cost of a square beam (5x2x3/16wall x 14') would be roughly similar. I haven't consulted the engineering handbook to see which is stiffer.
https://www.midweststeelsupply.com/store/hotrollsteelbeam

 

[lis2323]

A friend was buying a new compressor because he needed closer to 100% reliability. So I got his old rotary screw Quincy. Works perfectly and has a brand new 40 HP Baldor installed earlier this year.

Not planning on shelf mounting it..

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[Marctrees]

Gee, I dunno.....

I guess it could at least pump up bicycle tires or run a pin nailer.

Marc

 

[Nivekdodge]

I used hockey pucks for vibration isolation on the floor. Seems to have worked really well. I agree with splitting it up and both hang it and support it.

 

[Marctrees]

Hockey pucks are better than nothing, but actually quite hard.

Do the research.... commercial vib dampening pads are a softer Durometer #.

Marc

 

[SALIV8]

I say no way,

Put that compressor outside in a small room, and run your line inside.

Easy peasy.

 

[rharman]

Trying to shelf mount with no support to the floor will not end well.

 

[tracy.reich]

you could use steel posts with one in the corner and then 1 at each end creating a triangle shelf that would allow you to support the weight safely while taking only the space of the posts that would be up against the walls.

 

[bad_idea]

Pallet Rack.

 

[lis2323]

Pallet Rack.

OP wants clear span underneath.


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[bad_idea]

And you can have a clear span under a pallet rack. Put the first shelf at 8' or so. Then you just have the uprights on each side. Get some that are 8' or 9' wide and you can park a car under it.

 

[lis2323]

And you can have a clear span under a pallet rack. Put the first shelf at 8' or so. Then you just have the uprights on each side. Get some that are 8' or 9' wide and you can park a car under it.

He didn’t even want posts. Hence the discussion and controversy.

Good idea though. I keep a few welders under mine.

 

[Citation]

you could use steel posts with one in the corner and then 1 at each end creating a triangle shelf that would allow you to support the weight safely while taking only the space of the posts that would be up against the walls.

This is a clever idea and if space allows.

 

[ez-duzit]

...Because it is a corner location, you can set a beam, diagonally, resting on crippled studs to take the load so it is not cantilevered off the wall...

you could use steel posts with one in the corner and then 1 at each end creating a triangle shelf that would allow you to support the weight safely while taking only the space of the posts that would be up against the walls.

This is a clever idea and if space allows.

It is precisely what I suggested earlier.

 

[1redTA]

I would separate the tank from the compressor, mount the tank vertically to a pair of horizontal braces bolted to the tank’s floor mounts. I wouldn’t do this unless the horizontal supports are covering several studs that are braced well. Then find a shelf to put the pump/motor under or mount to the wall similar to the tank. The pump is going to vibrate and vibration control is important. Any frequency generated by the pump can damage anything affected by the vibration.

I’d build a small lean to....

 

[matt_i]

Easiest way would be to build a triangular shelf with 3 support posts that could also be integrated into the wall.

Span with appropriate timber, 2x8s or 10s will probably do over a couple of feet, joists every 16" oc going back to the corner.

The vibration is what it is, best practice is to keep the compressor from dancing off. Screw some 2x4s to the top surface and penetrate thru the ply to the joists that entrap the compressor base so it cannot move.

Load with forklift or ? Chain hoist ? Might have to build the columns higher and add a hypotenuse joist at ceiling level for rigging the machine on and off.

 

[Bretny]

This thread is starting to remind me of the guy who built the water barrel stand out of 2x2 wood and 1/4in plywood...then disappeared. I wonder how hes doing.

 

[sixty4]

Figure out your dead load across the span you need and overall weight. That would determine a lot. I would be adding some serious angle brackets with tube cross bracing as well.