To be clear, Kugelrohrs are awesome!
Especially for a small producer, but also as an additional distillation apparatus.
For instance, if you have a small 2" WFMS as your only distillation equipment and you somehow break some glassware and it ends up in your beautiful distillate (or you even just think you might have! gotten it in there!!).
This is a big time-eater, right?
Now you probably have to put it back into solution so you can filter it, then you’ll need to remove the solvent, probably via rotovaping. Then you’ll need to either re-distill to remove residual solvents, or put the material into a vac oven. I’ll let you do the math on the amount of time thats going to eat up at your lab. Most likely using equipment that should be processing new material, not reprocessing material that may have glass in it.
Now, if you built yourself a little kugelrohr set up, say with an old Buchi RE-120 motor, and a modified large stainless say, wort brewing pot from the brew shop slipped over the heating bath (Now made into a air bath).
Now get yourself some old-spinning 2L Kugelrohr glassware (including a “flying saucer bump trap”, you may need this made for you. I recommend Adams & Chittenden in Berkeley, CA. They are thee scientific glassware pros for the western US and they have been for 30+years), two or three cold traps, a thermocouple probe and controller, hook it up to your vacuum system, and you’ve got an amazing set-up that can run material full of glass or whatever, no problem.
Plus when your not fixing your mistakes you can plumb it into a vacuum system and use it as a SPMS (short path molecular still) if you get a proper vac system that can pull below 10mTORR. The whole set up (minus the vacuum system) will probably cost you $2000-$3000.
I love having a Kugelrohr in my labs.