The ladder that I like is aluminum with some steel bolts - but the bolts are small enough not to cause issues, no effect on shimming at all in fact so I would expect 600 MHz shouldn't be a problem.
It has 300 lb capacity, it is very sturdy, has handrails (I like the double handrail model), it is available with a double depth top step (which I prefer also) and it actually looks reasonably nice.
I remove the wheels to make it more stable.
I use it with my unshielded 500.
You will have to decide height and how many steps.
It is available from McMaster.
The web page is:
http://www.mcmaster.com/mva/pdf/110/1968.pdf
I would suggest part # 8189T35
Cheers
George
From: "Nimmo, Susan L." <susana_at_ou.edu<mailto:susana_at_ou.edu>>
Date: Thu, 25 Jun 2015 21:11:25 +0000
To: "'ammrl_at_ammrl.org<mailto:'ammrl_at_ammrl.org>'" <ammrl_at_ammrl.org<mailto:ammrl_at_ammrl.org>>
Subject: AMMRL:platform/ladder for 600
Everyone:
I have an unshielded 600 NMR (not in a pit). I am using a regular aluminum ladder for filling and sample insertion. However, this ladder has a 275 weight limit and I have some users who exceed this weight limit. Additionally, I would like a more stable platform for helium fills. I’m getting a little bit (just a little bit!) older and I am starting to get a little goosey on the 600 ladder. Does anyone have any suggestions on a better situation and perhaps a vendor?
Thanks!
Susan L. Nimmo, Ph.D.
NMR Facility Mananger
Department of Chemistry and Biochemistry
University of Oklahoma
101 Stephenson Parkway, Room 1700
Norman, Oklahoma 73019
Cell phone: 405-627-7044
Office: 405-325-0677
Received on Mon Jun 29 2015 - 10:03:14 MST