Is there any reliable low-cost rotary evaporator (well-cited)?

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Ping Cheng

http://www.hz-jingfu.com/cpzx/shiyanqianchulizhiyangshebei/xuanzhuanzhengfa/?bd_vid=9458280695537245143

Maybe， you can refer to this machine.

Susan Butch

https://www.amazon.com/Wilmad-LabGlass-WG-EV311-V-PLUS-Evaporator-Digital-Glassware/dp/B00KVA3IFS

Ralph Unternährer

I understand your request as these units are quite expensive. Thera are several low prices units on the market. If you need that rotary evaporator for some years, I would invest in a high quality system like a buchi rotavapor. In India, Buchi offers fast support and fast availability for spare parts as they have a Buchi office im Mumbay..