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screen printing => Equipment => Topic started by: Rockers on April 09, 2012, 02:16:07 AM
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Our new Diamondback S 10/8 will be delivered in May and we still have to get a compressor. Unfortunately we can`t have it outside our building as we are located in a residential area and there is
no space for a shed either. How can we silence a compressor inside your workspace. Building a box around it but will that really take out a lot of noise? And if we get a 10HP 80 gallon capacity compressor approx. how often would that beast switch on an 500 pcs job?
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Quickest way to silence is to go with a rotary. Failing that, a two stage of higher quality is quieter. Last is the single stage you got from Harbor freight. Enclosing with a sound proofing is acceptable BUT venting to fresh outside air would be preferred. Fully enclosed the ambient air temp in the enclosure would be detremental to the longevity of the compresser unit. The chiller should not be in the high heat enclosure. Using sound pads from ww grainger would be the best decibel reduction, with foam isulation next, with a layer of fiberglass. Sandwiched wall with foam on the inner surface would be the prefeered and would bring it to a mere fraction of it's former noise. Of course, a good rotary will start at 67-69 db and need no efort to silence. We have had equipment near offices and tried various methods over the years.
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Cheers. I came across a great package type compressor with air dryer. Noise level of 56 dB which apparently is fairly low for a compressor of 10 HP.
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If you build a closet around it extend the intake filter out the top and make sure you have some venting along the bottom, this way the machine is always in-taking fresh air and cool air is sucking in from the bottom to help keep the machine cool. Even just crappy insulated walls will cut the noise down quite a lot but if you go with high end sound proofing materials it will end up just about silent. Make sure one wall is hinged for easy access.
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you really only need a 7.5 hp to run that press. if your going larger because of future expansion then bump to a 15 then you can run 2 all air machines. otherwise i would stay with a 7.5 and the 80 gallon tank..
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We went with a Chicago Pneumatic 7.5HP QRS with 60 gal. tank (rated at 64db). Haven't really paid much attention to how often it cycles. It runs for maybe 2 minutes when it does charge and is not any louder than our single head embroidery machine.
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Building a room around a piston compressor sounds good on the surface but you really need to move a LOT of air to keep the room even moderately cool. We have a 10HP V-twin with 120 gal tank in the basement in a soundproofed room with vents and an exhaust fan. If we don't leave the door open the temp goes to way over a hundred in a hurry. We're going to move to a rotary and have the old piston model as a back up.
(http://i70.photobucket.com/albums/i116/swmankin/CompressorRoom.jpg)
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Building a room around a piston compressor sounds good on the surface but you really need to move a LOT of air to keep the room even moderately cool. We have a 10HP V-twin with 120 gal tank in the basement in a soundproofed room with vents and an exhaust fan. If we don't leave the door open the temp goes to way over a hundred in a hurry. We're going to move to a rotary and have the old piston model as a back up.
([url]http://i70.photobucket.com/albums/i116/swmankin/CompressorRoom.jpg[/url])
Looking at the pic I don't see any venting?
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There're 3 on the wall on the left that the door is hanging on. The exhaust fan is the blue thing in the lower right corner of the room.
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For sound dampening purposes that insulation board should be on the inside of that door.
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It's a lot easier to get something that's quiet in the first place than quieting something after the fact. We were running a 7.5 IR rotary screw, and once the room was insulated, and circulation fans were in the walls, it was maybe a 5-6 Db drop in sound. Improvement, for sure, but pretty crappy for the time/material investment. I'd say building a room would be more worth it if you were to do a transmission line style baffle--and then you need some serious blowers to push air around all those turns. I'd drop a grand on a quieter compressor before I dropped that on materials and time for a room.
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I'd drop a grand on a quieter compressor before I dropped that on materials and time for a room.
Amen
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Agreed... but Rocker is in Japan, not sure what that means but that might change things as far as selection.
Sounds like he has a screwtype lined up though.
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i have that same press and i run it with a 7.5 ingersol. Rich actually told me a GOOD 5hp would run it.
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I hate my IR. I have the variable speed and it has been nothing but trouble. I am running my shop on a husky from HD again. My IR has been down since October.
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Am I right by saying the most important fact is the airflow at 100psi? It is to my understanding that most compressors have lower airflow at higher psi and vis versa of course. Just wondering, here in Japan all compressor manufacturers state the max airflow at the max pressure but never did I see any figures showing the airflow at lower pressure settings. Maybe that`s why most 7.5HP compressors I came across here don`t look at first sight suitable because they state the max airflow at max pressure.
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I'd be interested in checking out references on this too--as it was told to me, there is a CFM displacement of the piston, and the actual CFM delivery goes down slightly as pressure increases, so if it delivers, say, 30CFM at 175PSI, it will only deliver, say, 33 at 100PSI. For short duty cycles though, the higher pressure will come into play--we have a 120 gallon receiver, and a ten horse compressor, and it will go from 120-150 PSI in less than two minutes--at 150 PSI, functionally, it's more like 180 gallons of 100 PSI air.
If that helps at all. :)
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Yes you are right. It's hard to find the cfm rating at lower at a lower psi on most compressors I guess you'd have to call the manufacturer. We had a M&R diamondback and it required 23 cfm at 100 psi. Our 7.5 horsepower Champion series compressor states that it will produce 25 cfm at 175 psi. It ran the press just fine. Now we have a Sportsman e that has a servo drive and only requires 9 cfm at 100 psi. The compressor only comes on about every 70 to 80 shirts.