The snag is that this is going to be used VERY rarely, e.g. 2 or 3 times a year, so we really can't justify spending several hundred quid. They turn up occasionally on eBay, but there's currently nothing and I would greatly prefer to get something that comes with a proper warranty and safety certification! So I was wondering if anyone here has happened to buy anything recently, or might know of a lab that's upgrading and needs to get rid of something old but legal.
Basically, what we need is something pretty basic that will take 2 or more 15ml tubes, speed about 2800 RPM, proper safety interlocks so it can't be started while open or opened while the tubes are spinning. And 230v mains powered, of course, which rules out most of the new ones on offer from American vendors on eBay.