KPHM400-ST high flow stepper motor peristaltic pump 24V variable speed lab liquid dosing pump 0~400ml/min

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Works very well, bought a second one for another project.

I’ve been happy with this pump overall. The stepper motor gives you much better control than a basic DC peristaltic pump, and the 0–400 mL/min range makes it useful for anything from slower dosing to moving a decent amount of liquid.One thing I really like is how easy the pump head is to disassemble. You can get in, inspect the rollers, clean things up, and replace the tubing without having to fight with the whole assembly. The construction feels solid and the head goes back together without feeling flimsy or overly complicated.My main complaint is that I wish they included at least one spare piece of replacement tubing. Tubing is the wear item on any peristaltic pump, so having a backup in the box would make a lot of sense, especially at this price point. Other than that, it’s been a very practical lab pump and easy to service.

Hooked a couple of these up for a hobby project after using some previous cheaper pumps that quickly gave up on me. I had to remove and reseat the pump head a couple times on each to get them to work (par for the course in my experience). Otherwise, they work well - no complaints.