New Propeller Pump & Tunze competition

[swissfish]

that's really cool!

[Reefer Addict]

I'm excited to see how the wireless wave controller will work.

[MrKrispy]

can you direct the flow?

[Reefer Addict]

Other than moving the pump, no. Although the dispersion is pretty wide. I think I posted a video in an earlier post that shows how much the pump creates turbulence.

[swissfish]

It basicly works like a magnetic mixer, like the ones we used in chemistry class and Chemical plants right? Magnet spins on one side of the glass and the magnetic propeller spins on the other side of the glass trying to keep up with the first magnet?

[Reefer Addict]

It basicly works like a magnetic mixer, like the ones we used in chemistry class and Chemical plants right? Magnet spins on one side of the glass and the magnetic propeller spins on the other side of the glass trying to keep up with the first magnet?

Looking at the pump earlier, your description is spot on.

[swissfish]

anybody working in a lab here????? I might want a mixer

[Reefer Addict]

anybody working in a lab here????? I might want a mixer

I would be VERY impressed if someone can build a DIY version of this pump!

[lucubrator]

I would be VERY impressed if someone can build a DIY version of this pump!

Really? Given the size of the casing on the outside, it looks like it's actually less complicated than the magnetic mixers. Magnetic mixers actually switch the polarity of an induced magnetic field, which takes abit of electronics. These guys look to have a magnet on a motor; something OZ reef posted DIY plans on more than a year or two back.

1/2" Dia x 2" Long NdFeB Rod Magnet, Grade N40, Ni Plated with Matte finish, Axially Magnetized 1/2" Dia. x 2" long Rod $12.00 each
The thing doesn't really have to be sealed on the inside, and I'd be surprised if they had ball bearings to keep things from grinding. If that's not strong enough to have the prop spin AND hold it tight to the glass then you could use 4-6 short rod magnets inside and out to hold it to the glass:
1/16" Dia. x 1/4" long Rod Axially Magnetized $6.00/25 pack.
A little prototype, followed by a bit of injection molding, and you've made yourself a tidy $200 profit.

[MrKrispy]

many lab mixers just put a magnet on a motor, i use to take them apart to fix them.

[lucubrator]

many lab mixers just put a magnet on a motor, i use to take them apart to fix them.

So they're still at most as complicated as the magnetic stirrers, and very much like this:OZ Reef

The point is that they shouldn't be too hard to make.