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Electric overhead stirrer
give your help with these shakers. I make with liquid soaps, shower gels, shampoos and various creams, I work at home and small quantities at a time, not exceeding 3 liters. Which one do you recommend I buy?
I have seen this what you say for amateur use I will be ok?
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3 Replies
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What’s the wattage?
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If various creams are o/w emulsions you don’t need overhead stirrer at all. You need high shear to ensure droplets are small. Get a powerful stick blender (600W +). Bosch has good options. Regarding surfactant products, you can mix them by hand. Overhead stirrer won’t be able to mix viscous shower gel unless it’s very powerful and costs way over 1,500 euros. The only reason someone who is formulating at home might want to get an overhead stirrer is for w/o emulsions or dissolving polymers.
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I use the mixer with the digital display and use it to mix shampoo, conditioner and hair styling emulsions. It suffices for lab volumes of 100-800 mL.
I primarily use a pitched blade axial flow impeller (from eBay), which I was advised to use instead of the marine propellor/screw that comes with the unit. If anyone can tell me why, that would be great!
For dispersion/wetting, I also got a few different sizes of cowles/dispersion blades (also from eBay). One of those at 2000 RPM for 30 seconds can really tear things up.
Overall it’s a pretty cheap system that gets the job done, and allows you to safely leave something mixing for hours.
The clamp that is meant to hold your beaker in position is absolutely useless though.
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