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heavy use. |
Does anyone have experience with using an oil-lubricated air compressor with |
filters to reduce hydrocarbon carryover? Does that work or is an |
oil-lubricated compressor a bad idea? |
Any recommendations on reliable oil-less air compressors in the 7.5-10 hp |
(around 30 cfm ) range? |
Thanks, |
David |
David J. Frankel, Senior Research Scientist |
Laboratory for Surface Science & Technology |
University of Maine |
5708 Barrows/ESRB |
Orono, ME 04469 |
207-581-2256 |
207-581-2255 fax |
<mailto:frankel at maine.edu> frankel at maine.edu |
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From joel.pikarsky at mirc.gatech.edu Tue Aug 26 17:03:22 2008 |
From: joel.pikarsky at mirc.gatech.edu (Joel Pikarsky) |
Date: Tue, 26 Aug 2008 16:03:22 -0500 |
Subject: [labnetwork] SEM of PDMS? |
In-Reply-To: <45F0BB3D-3D65-41E9-B89A-55526941FA8F@nd.edu> |
References: <45F0BB3D-3D65-41E9-B89A-55526941FA8F@nd.edu> |
Message-ID: <48B46F9A.5000005@mirc.gatech.edu> |
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From jrweaver at purdue.edu Thu Aug 28 08:39:17 2008 |
From: jrweaver at purdue.edu (Weaver, John R) |
Date: Thu, 28 Aug 2008 08:39:17 -0400 |
Subject: [labnetwork] FW: Compressed Air?? |
Message-ID: <B4737B356A16C14A9373FD75AE389B1D042C6C1F@EXCH02.purdue.lcl> |
This is the response from my Facility Engineer, Jeff Kuhn. I hope it is |
helpful. |
John |
From: Kuhn, Jeffrey G |
Sent: Tuesday, August 26, 2008 4:11 PM |
To: Weaver, John R; Voorhis, Mark L. |
Subject: RE: [labnetwork] Compressed Air?? |
John, |
Our Kobelco compressor is oil free, but Kobelco's smallest model is a |
bit large for his needs. I've not been wild about Kobelco reliability |
either. I'm told that our compressor failed shortly after installation |
here at Birck. |
There are oil vapor filters available that can produce medical grade CDA |
using carbon filtration. They would probably reduce hydrocarbon |
carryover to acceptable levels, but I think it is better to use an oil |
free compressor. An oil vapor filter adds a potential failure mode and |
additional maintenance to the system. The ramifications of filter |
failure could be severe. |
I don't have a recommendation for a specific model, but Ingersoll-Rand |
manufactures several versions of oil-free rotary screw compressors. I |
used them in the past with good success. They also offer smaller units |
in the capacity range Dave is seeking. The downside is that they can be |
expensive. |
Jeff |
From: Weaver, John R |
Sent: Tuesday, August 26, 2008 3:32 PM |
To: Voorhis, Mark L.; Kuhn, Jeffrey G |
Subject: FW: [labnetwork] Compressed Air?? |
Any thoughts for Dave Frankel? His e-mail is below. |
From: labnetwork-bounces at mtl.mit.edu |
[mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of David Frankel |
Sent: Tuesday, August 26, 2008 10:15 AM |
To: labnetwork at mtl.mit.edu |
Subject: [labnetwork] Compressed Air?? |
I have a compressed air problem and am looking for suggestions: |
We have a 7.5hp dry piston air compressor supplying our modest (around |
3000 sq. ft.) clean room and a number of other non-clean room research |
labs. Presently our average steady usage is around 8 cfm of compressed |
air. Our air compressor has become unreliable and I am looking into |
alternatives. Previously we had a smaller dry scroll compressor which |
did not stand up to heavy use. |
Does anyone have experience with using an oil-lubricated air compressor |
with filters to reduce hydrocarbon carryover? Does that work or is an |
oil-lubricated compressor a bad idea? |
Any recommendations on reliable oil-less air compressors in the 7.5-10 |
hp (around 30 cfm ) range? |
Thanks, |
David |
David J. Frankel, Senior Research Scientist |
Laboratory for Surface Science & Technology |
University of Maine |
5708 Barrows/ESRB |
Orono, ME 04469 |
207-581-2256 |
207-581-2255 fax |
frankel at maine.edu <mailto:frankel at maine.edu> |
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From shott at stanford.edu Tue Jul 8 18:33:29 2008 |
From: shott at stanford.edu (John Shott) |
Date: Tue, 08 Jul 2008 15:33:29 -0700 |
Subject: [labnetwork] Vespel wafer clamp for 4" P5000 etch chamber? |
Message-ID: <4873EB39.4000004@stanford.edu> |
Labnetwork community: |
Does anyone have a source of the vespel wafer clamp for 4-inch wafers |
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