Peristaltic pump stepper with digital control 110V-220V variable speed small intelligent liquid dosing pump for lab and filling Kamoer LLS Plus 3 rotors 1-352ml/min silicone tube 4.0mm x 7.2mm

I'm not sure if I just received a faulty unit, but at higher flow rates (>200 mL/minute) the pump motor will rotate for a short period of time (only a few seconds/minute) then abruptly stop turning. Once it's stopped, it doesn't restart, which makes it pretty tough to use continuously. There is no blockage in the system or significant backpressure that should be causing this.

good

This is a good pump with stated capacity and precise control. I use this pump to move saltwater on continuous duty and it has a couple issues. The 4 mm x 7 mm replacement tubing is hard to find in the USA, which is an issue. The silicon tubing suggested on the amazon site as of 9/21/2021 - is for making connections, and lasts about three days if you try to use it in the rollers. Also, as of the same date, the Kamoer store does not offer peristaltic tubing. Your options are alibaba or you could try 5/32 x 9/32 masterflex tubing. Also, if the power goes off - the pump will not restart. Also an issue for a continuous duty pump - which limits control options (cannot be run on a timer) and creates a dependability issue.

The pumps were quite durable and worked well. We had one due on us while still under warranty and the company replaced it at no charge. Good for what we needed.

Works great