We have four SpeedVac concentrators in almost continuous use in our lab. Every
so often one of the rotors cease. Replacement units are not inexpensive. New
replacement bearings are cheap, but the problem is disassembling the rotor unit
to get the old ceased bearings off the shaft. Does anyone have any tips or
suggestions about how the ceased rotors can be (easily) disassembled?
Kym
Kym Francis Faull, Ph.D.
Director, Pasarow Mass Spectrometry Laboratory
Jane and Terry Semel Institute for Neuroscience and Human Behavior at UCLA
Professor Emeritus on Recall, Department of Psychiatry and Biobehavioral
Sciences
David Geffen School of Medicine at UCLA
Telephone: (310) 206 7881 (office)
Telephone: (310) 206 7886 (laboratory)
Facsimile: (310) 206 2161
Electronic mail: <email obscured> <email obscured>>
Hi Kim,
You could try cooling it in a bucket of dry ice. The shrinkage should break it
loose. This has worked for me on other difficult bearing extractions.
Brian Hampton
Proteomics Core Lab
Center for Vascular and Inflammatory Diseases
University of Maryland School of Medicine
BioPark One Rm 301
800 West Baltimore Street
Baltimore, MD. 21201
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(410)706-8207
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Subject: [ABRF Discussion Forum] Repairing SpeedVac rotors
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We have four SpeedVac concentrators in almost continuous use in our lab. Every
so often one of the rotors cease. Replacement units are not inexpensive. New
replacement bearings are cheap, but the problem is disassembling the rotor unit
to get the old ceased bearings off the shaft. Does anyone have any tips or
suggestions about how the ceased rotors can be (easily) disassembled?
Kym
Kym Francis Faull, Ph.D.
Director, Pasarow Mass Spectrometry Laboratory
Jane and Terry Semel Institute for Neuroscience and Human Behavior at UCLA
Professor Emeritus on Recall, Department of Psychiatry and Biobehavioral
Sciences
David Geffen School of Medicine at UCLA
Telephone: (310) 206 7881 (office)
Telephone: (310) 206 7886 (laboratory)
Facsimile: (310) 206 2161
Electronic mail: <email obscured> <email obscured>>
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Kym,
I don't have an answer, but would love to learn how to repair these. I think
the first time I bought a new one, >10 years ago, it was ~$125. Now they are
$750! I have these things stuck on doors and metal surfaces in my lab. Years
ago, I tried to disassemble one. I don't remember how far I got, but I didn't
succeed. Seems like they should be repairable. Any ideas how to find someone
who could do it? Start calling machines shops???
They do make an acid resistant version, SUMAXSPD, is the one that fits my
chamber. It's $1,726 through Unity Lab Services. If it really lasts forever,
should be worth it. There are a couple of new ones on ebay right now for $799.
If I could figure out how to get reimbursed for it, I'd snap one up.
Noah
Noah Dephoure, Ph.D.
Assistant Professor of Research
Director, Advanced Biomolecular Analysis Core
Sandra and Edward Meyer Cancer Center
Department of Biochemistry
Weill Cornell Medical College
413 East 69th Street, BRB1612
New York, NY 10021
Telephone: 646-962-6232
E-mail: <email obscured>
Noah,
I get used spedvacs and parts on eBay…BTW, for an acid resistant vacuum to hook
up to the speedvac try KNF teflon diaphragm pumps….
Best,
Dick
> On Aug 6, 2021, at 12:02 PM, Noah D4 <email obscured>>
wrote:
>
> Kym,
>
> I don't have an answer, but would love to learn how to repair these. I think
the first time I bought a new one, >10 years ago, it was ~$125. Now they are
$750! I have these things stuck on doors and metal surfaces in my lab. Years
ago, I tried to disassemble one. I don't remember how far I got, but I didn't
succeed. Seems like they should be repairable. Any ideas how to find someone
who could do it? Start calling machines shops???
>
> They do make an acid resistant version, SUMAXSPD, is the one that fits my
chamber. It's $1,726 through Unity Lab Services. If it really lasts forever,
should be worth it. There are a couple of new ones on ebay right now for $799.
If I could figure out how to get reimbursed for it, I'd snap one up.
Rest of post
>
> Noah
>
> Noah Dephoure, Ph.D.
> Assistant Professor of Research
> Director, Advanced Biomolecular Analysis Core
> Sandra and Edward Meyer Cancer Center
> Department of Biochemistry
> Weill Cornell Medical College
> 413 East 69th Street, BRB1612
> New York, NY 10021
> Telephone: 646-962-6232
> E-mail: <email obscured>
>
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>