Re: [AMMRL] Spinners from Cortec.net?

From: Anne Rachupka via groups.io <arachupka=unm.edu_at_groups.io>
Date: Wed, 5 Aug 2026 15:47:50 +0000

You are correct!

When I searched for spinners in the Bruker store, I went by the picture, saw
the price, and immediately said Nope. I expect a markup from Bruker, so it's
my fault for not looking closer.

So much for the "attention to detail" part of my job description.

Thank you,
Anne


-----Original Message-----
> From: main_at_ammrl.groups.io On Behalf Of Gerd Gemmecker via groups.io
> Sent: Wednesday, August 5, 2026 2:39 AM
> To: main_at_ammrl.groups.io
> Subject: Re: [AMMRL] Spinners from Cortec.net?



I have a suspicion ... although the picture is then wrong, this might be for
the "special ultra-high field spinners" REQUIRED for GHz magnets, that's why
it explicitly says "modified standard spinner".

We have them on our 1200: they have (clearly visible!) little titanium rods
integrated in them to compensate for the Meissner-Ochsenfeld effect which
lets diamagnetic things (live frogs, K-TEL spinners etc.) "float" on very
strong magnetic fields. So "normal" K-TEL spinners will take forever to settle
all the way down in such a strong magnet. Understandably, these very special
spinners would be much more expensive than the normal ones (although the
picture here definitvely shows a normal one WITHOUT the titanium inserts -
I guess it was just copied from the nromal spinners).

The "normal" spinners can be found here:
https://store.bruker.com/en-DE/products/spinner-standardbore-shimsystems?material=kel-f&size=5*2520mm
and they seem to be one order of magnitude cheaper ;-)

Ciao,

gg

--
PD Dr. Gerd Gemmecker
Bayerisches NMR-Zentrum
NAT School, TU München
Lichtenbergstr. 4
D-85747 Garching
Germany

Raum/Room 2108 / BNMRZ, E.O.Fischer-Str. 2
Tel. +49 (89) 289-52604
Fax +49 (89) 289-52669
e-mail: Gerd.Gemmecker_at_tum.de
Internet: http://www.gemmecker.de/


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Received on Wed Aug 05 2026 - 08:49:57 MST

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