I was about to order this puppy, but what is the difference between the Aluminum with Anodized Surface plate, and the Brass with Nano Ceremic Coating plate? I know the 30*30 only comes in Brass, so why the anodized Alu? Is there any benefit to that one?
as side effect it is easier to clean.
asked that myself too.
Have you seen this?
(Attachment Link)
Physically:
Aluminum has better thermal conductivity than brass; that's why they say, alu has a "more evenly heated surface". But considering the small area of 5x5 cm, I don't think there is much difference between the aluminum and brass MHP50.
Brass is not as "hard" as Aluminium. That could be the reason, why they spend an nano ceramic coating in addition; as side effect it is easier to clean. I read somewhere, that brass needs more time to reach the same temperature compared with aluminium.
Regarding the more evenly heated surface my decision was for the AL50 Hot Plate.

It is recommended to prepare a power supply that supports the PD3.1 protocol. In the upcoming MHP50 firmware, we have added PD3.1 protocol support and can work at 140W power.
About AL55 surface cleaning - I have no experience. I returned my MHP50 because
- I got one with PCB v0.7
- The reflow welding temperature can't be set below 230 °C (at least with FW v1.0). That's bad for low temp. soldering (e. g. 150 °C), as you unnecessarily stress your PCB with much more heat than actually needed.
There is no '1.00' and apparently Miniware felt it was ready for market. I don't see the point of returning it over a number which has little meaning if you're not the manufacturer.

... they are just making low cost soldering products, primarily for hobbyists.
... they are just making low cost soldering products, primarily for hobbyists.
I (respectfully) disagree. The MHP50 is expensive !

Anyways, I want one, should I get the Alu or the ?brass/copper? One?
It is a bit overpriced. But the segment is underrepresented. And Miniware are riding on their name a bit. I bought the TS100 when it first came out and to this day it still works. So at least I have some faith in the quality of their products.

. I find it useful despite it's small size but have now bought a much bigger 200mm hot plate, mostly for doing assembly a bit faster than the MHP30.
For hobbyists yes you are right. As a comparison, though not quite the same product, Hakko's low end preheater is $360, metcal $600, pace $1,200.
I am interested in this hot plate but I would like to use it with a solder paste that melts at 138C. Do you know if with the latest firmware the lowest reflow temperature is still 230C?