Vertical compressor mounting

[BimmerAgent]

Hi Guys- Just bought a compressor, and need some advice on mounting it. It's a 60 gallon vertical unit. I've heard that it's good idea to place a type of vibration pad under the feet. Do you know where I could get some ? Also, do any of you have experience with the mounting bolts ? I'm wanting to know about drilling and depth in the concrete. Thanks for the help. Bruce

 

[IanF]

www.mcmaster.com



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I'm not a structural engineer, but from what my mechanical engineers at work have said, you want a vibration isolator weight rating to be relatively close to the weight of your equipment. If the weight rating is too high for the equipment, the damper will be too stiff to work properly. An instance where bigger is not necessarily better. I'm not 100% what the safety factor would be.



Equipment weight / mounting points x 1. ? = mount weight rating.



Also bear in mind that like an engine mount, these rubber-type mounts are wear items. Although chances are they'll last a long time. Considering they seem pretty cheap, I'd probably get a few spares.

 

[BimmerAgent]

Thanks for the info. , Ian. I'll see what I can find. Bruce

 

[rbattelle]

I'm surprised you didn't get more responses. Probably because Ian's post pretty much summed it all up.



When I first read the post, I thought you just wanted mounting feet for it. But then at the end you comment about bolting it to the floor.



If you're going to bolt it to the floor, do you really need anti-vibration isolators?



Ryan

 

[Cryppie]

For my 5HP 60" vertical, I just set 4 concrete anchors and put 1/8" thick rubber squares under each pad. Works well for me, and keeps the compressor from walking all over the garage

 

[RHoppe]

I have a big 60 gallon Ingersol Rand, and my brother and I bolted 2, 2x6's to the feet to give it a solid, and bigger footprint, as they seem to be top heavy. We then set it on a 1/2" thick rubber mat, that I got at Menard's... . It's solid, stable, and will not wonder around on you !!!I ordered it from Grainger, and they had the rubber isolator feet too that I bought, but they were super expensive, and I really didn't want to sink anchors in new concrete, and have them loosen from vibration. I'd like to build a frame for it to set on out of metal..... maybe someday. You should be able to find the thick rubber mat at Menard's or a Fleet Farm, or Tractor Supply... maybe Home depot.

Another thing to consider, and we did, is unscrewing the cheesy T-valve drain at the bottom, and replacing with a 90* elbow, and extending out with pipe nipple, with a ball valve on the end. Makes for easy bleedoff of tank and to get rid of any water in the bottom of tank... ... . easy access, and ball valve works great. You can get all this at Menard's or Home Depot too.



Hope this helps

 

[BimmerAgent]

Separation

Thanks for the replies.

I was curious to hear your thoughts because I wanted to stop the walking, but I also wanted to avoid bolting to the floor. This is because I have been told that if you bolt to the floor, the vibration can cause the foot-to-tank welds to separate. Now, I've never seen that happen, but I suppose it could. I am also concerned about concrete fatigue. My temporary solution is a throw rug with that kind of sticky rubber backing. I like the thick rubber mat idea, and I also like the drain plumbing. I'll look into those this weekend. Thanks again. Bruce

 

[catoiler]

Mine came on a pallet and I just left it on it. Been 14yrs and no problems!Don't walk or move at all.