has anyone used this in an espresso machine? it looks quite a bit smaller (6.5x2.5x1.5) for the pump/motor package vs ~(10.75x6.25x3x3) for the Series1 pump/motor package that is typically used. Here is a link to the product page:

http://www.proconpumps.com/products/Mic...-Pump.html



it is marketed on their webpage as a pump for espresso machines. for people like myself with who have a vibe/pour-over machine (La Cimabli M31) this might be a rotary that can fit in the machine.

however, i can't find any information on pricing or availability. i sent a note to procon. attached are the spec sheets. does anyone see a reason this wouldn't work?

links to spec sheets below:
http://dl.dropbox.com/u/9822636/Micro%2...rawing.pdf
http://dl.dropbox.com/u/9822636/Micro%2...p_spec.pdf

Procon calls it an "Espresso Pump" so it should be food safe. All you'll need is a solid 24v dc supply with amps capacity to drive it. I'd guess it is not cheap but could be surprised.
KDM

I actually have been testing this one but it is not as simple as a just a power supply. It has a BLDC (Brushless DC) motor. Therefore you need a brushless motor control to operate it. It is a very small and compact pump/motor and had really good performance. Will let you know more later. They should also have a spec sheet on their website.


BillC

The interesting thing about a DC motor, you can vary the speed with voltage. So you could easily rig it to do pressure profiling.

Therefore you need a brushless motor control to operate it.

Could you not just "get by" with two DC power supplies (one 24 v and one 5 v) and a potentiometer to "control" the 5 volts DC ?

And, if the Procon offering is a little large, try this one: http://www.fluidotech.it/Contents/Documents/Magnet%20drive%20gear%20pump%20FG100%20pump-motor%20unit.pdf . These particular Fluid-O-Tec pumps are NOT available in country yet but . . .. Pricing is guesstimated at around $250.

Seems as though its gonna be a whole new/revisited world in the next 6 months or so.

That's the one on the Strada EP. Requires a pump per group, but seems just about ideal as a pressure profiling vibe replacement. The manual control on the EP paddle is just a pot, the big bucks are not in using it on the motor, but as a programming input for the PID.

You're maybe just a little too google-eyed lately from all that Strega playing

The EP Strada has two or three of these: http://www.fluidotech.it/Contents/Documents/Magnet%20drive%20gear%20pump%20MGCF04S-11Spump-motor%20unit%20DC.pdf (the MGCF11S). It also comes with a "regular" FOT for steam boiler fill.

I think the Strada is using FG 100 series now. Fluid o tech has a new west cost office in Concord Ca that supposedly specializes in gear pumps.
I've used the other MG series, just thought the ramp to full pressure was slow for some profiles, so I'm interested to see how this new one does

I think the Strada is using FG 100 series now.

Well, if anyone should know, it would be you (amoungst a few others). However, I was relying on the pic (sent from a friend) and the Strada EP parts catalog available here: http://www.lamarzoccousa.com/LM%20USA/docs/Strada/Strada_Parts_Catalog_EP_V1.0.pdf .

The LM Gear pump uses a brushed DC motor. The speed control is done via PWM (pulse width modulation). By varying the duty cycle of the PWM you are able to control the speed of the motor. This is very different from the brushless DC motor control where the motor is commutated via a electronic controller. Just connecting it to a power supply will not work you must have some electronic switching, and in some cases some feedback also (usualy hall effect sensors). Then you are able to control the speed by varying the speed of the switching.



BillC