ONiLAB Lab Analog Overhead Stirrer, 10L Capacity, 100-2500rpm Adjustable Speed,Max.Viscosity 10000mpas, Lab Mixer with Overload Protection, Overhead Mixer with Support Stand&Two Stirring Rods,110-220V

Good! The only complaint is when you first turn on the mixing, it will at first mix with a joult of power for 2 seconds and then equilibrate to the selected speed. When purchasing attachments note the distance between the hot plate and overhead stirrer.

This is a lovely piece of simple kit that gets the job done. Quiet, efficient, good torque. No wobblies or weird vibrations. In short this thing works great for us. I also want to praise the team there - mine arrived w/ a defective transformer and they replaced it without fuss. Very satisfying customer support people, and prompt. THIS MATTERS!

el comportamiento hasta ahora ha sido bueno, esperemos el transcurso del año

I receieved the item with two of the upper support rods instead of one upper and one lower so they do not screw together and I cant use the stirrer.

I like this overhead stirrer. It makes my cosmetic formulation less laborious. I typically use either 500 or 1000ml beakers with it. The stand is sturdy enough to hold this stirrer, but the clamps aren't the strongest. I have no problem with the stirrer moving up or down, but I do have issues with it moving left to right while mixing, which is exacerbated a bit by there being nothing to hold the beaker in place at the bottom. The speed knob jumps a bit in speed increments - for example, the first little bit after turning it on has barely any spinning, then very quickly jumps up to a much faster rpm. The speed up and speed down is not as smoothly incremental as a twist knob would imply. That said, at this price I've found it to be a great addition to my lab. It works very well with a few quirks, but none of its quirks are deal breakers for me. I'd buy it again.

Great product. Customer service was also very helpful. Get it!

I’ve been running this unit in a real production-style herbal lab, not a hobby counter. After months of use, here’s the no-nonsense verdict. Performance & Torque For what it costs, the torque is surprisingly solid. I’ve put it through thick herbal phases, oil-heavy blends, and long extraction runs. It doesn’t stall. It doesn’t complain. It just grinds through it. Is it an industrial-grade IKA? No. But for herbal extraction workloads, the torque is adequate to good, and I rarely feel like I’m asking too much from it. Reliability I’ve run this thing for hours—continuous, no breaks. The thermal overload has never tripped, which tells me two things: 1. The motor is built reasonably well. 2. I’m staying in its performance lane even with heavier botanicals. So from a durability standpoint? It’s doing its job. Noise Level Here’s the honest pain point: it’s loud. My operating range sits in the 65–75 dB zone—hair dryer territory. You’ll hear it. Your neighbors might hear it. If you’re running long batches, you’ll definitely feel it in the room. This is the one area where the price shows. Cheaper analog stirrers tend to run open-frame motors without the dampening the premium units use. So yes, it mixes. But it also announces it to the entire block. Controls Analog control is fine, but not precise. No timer. No digital RPM. You need to track things manually if you care about reproducibility. It works, but it’s old-school. Overall If you’re an herbalist, extractor, formulator, or small producer, this thing punches way above its weight class on torque and reliability. If you need quiet? Not happening. If you need digital precision? Not happening. If you need muscle on a budget? This is exactly the lane it’s built for—and it delivers. Verdict 3.7 5 Strong mixer, high noise floor, rock-solid for herb work, great for the price, but not something you want running in the same room while you’re trying to think.

This arrived from the vendor in a very sturdy sealed outer cardboard box. The contents were surrounded by styrofoam with the bottom thick & molded to conform to the heavy base, the main mixer, & compartments to hold the tri-bar piece, the power supply & cords, the 2 mixing rods, & a plastic re-closable zip lock bag with an instruction/inventory sheet, a socket wrench & a hex key. It takes about 5 minutes to set up mainly to get it out of the box & get the plastic & styrofoam pulled away. I don’t use this often, but for when I need it this thing is really worth its weight in gold. I make real actual colloidal silver cremes (most of the stuff on the market is they wish they knew how) & it was always (I thought) a chore to mix them with a big whip or a little hand held mixer. This is much easier than hand mixing either with a whip or machine. This saves my hands from getting more arthritis. I think if I were going to write instructions for others to follow (including my own notes or recipes) it’s a bit difficult to describe “turn the speed dial mid way” & have that translate to other peoples’ equipment. Even my own recall of what midway is can be suspect. So a digital readout might be a better choice if you are writing manuals or doing technical docs. But a few digits of speed in my case isn’t going to make my end product fail or be less viable, but in some cases precision speed that can be duplicated could be important. But other than the speed being a bit subjective, this thing really is a workhorse & works better than I could have imagined. It mixes my cremes easily, I can go on & do something else instead of being tied up stirring. Maybe most significant it could very well save me many future moments of joint & finger pain! Recommended.

Revised, chuck issue resolved. The modulation control is a bit finicky in the low rpm range, but fully acceptable. I read reviews that it was noisy, but mine operates extremely smoothly and quietly. The removable power cord at the motor is handy for installing and removing from the apparatus. My initial review was a bit critical on account of an internal issue with the chuck/rod holder, which seized onto the stir-rod after tightening the first time, but upon closer inspection, thorough cleaning of internal debris/rust with air pressure and a shot of WD40, it now performs as expected. Overall for this price range, good toque, sturdy base and attachment bracket. ONiLAB was quick to inquire and offer resolution for the chuck issue.