Aha now that I know where to look for static pressure ratings this one would slot in with no modification and provide about 5x the vacuum:
https://www.digikey.com/en/products/detail/sanyo-denki-america-inc/9CRH0412P5J001/7622262
Question is whether or not my mesh would withstand the increase. I can math it out now. 0.03 psi * 11” x 19.5” yields a total ideal downforce of 6.4 lbs. adjusting for efficiency issues (leaks, etc) I’d suspect it’s closer to 6 lbs. Using this new fan would jump it up to 30 lbs. It’d probably work, I’d think.
And yeah a nice small high pressure centrifugal fan would be nice. I looked but didn’t get too far.
This is even higher:
https://www.digikey.com/en/products/detail/sanyo-denki-america-inc/9CRJ0412P5J001/13245514
0.34 psi static pressure. ~74.6 pounds of total downforce. That sounds like overkill for my mesh.