What the largest USA miner uses to cool their ASICs

Whinstone (subsidiary of Riot Blockchain, Inc.) operates USA's largest Bitcoin Mining facility in Rockdale, Texas. Whinstone’s site has a total power capacity of 750 MW, with 300 MW currently developed ↗.

Whinstone generates engineering and construction services revenue from hosting clients on site, including revenue derived from the fabrication and deployment of immersion cooling technology for Bitcoin mining.

Whinstone has been loud and proud about their Rockdale facility expansion. After watching some of their progress update videos, I became curious about the immersion hardware that they're using. I took some screenshots and asked about the systems in the Immersion Cooling Technology Talk Telegram channel. David Branscum from Midas Immersion replied and said the pumps are theirs.

Upon further inspection of the Midas Immersion website, it appears that the Whinstone facility tanks are theirs too.

Midas website details:

• 152kW Cooling Capacity per Tank
• Capacity for 22 or 33 Antminer S19's, depending on configuration
• Dual loop

At this point, due to the messaging in the Riot press release, it is unclear whether these tanks are designed and manufactured by Whinstone or Midas.

4500 watts per miner times 33 miners in the tank. 152 kw per tank. We sell them if you'd like to buy any. -- David Branscum, Midas Immersion

It seems as though these are Midas designed and manufactured tanks ↗, although I've asked David for clarification. Interestingly, they appear to have their own subreddit. Some digging shows us that Midas used to be called Immersion Edge.

Trying to look for more details of their pump and heat exchanger, I came across their patents for one of their server blade immersion platforms which show interesting mechanical details:

The tanks aren't the prettiest, but that's besides the point. If you're trying to rapidly scale like Tesla, you need simple and reliable production processes. That way you won't need to spend time developing tooling, production, and assembly lines. Think of the cybertruck - folded sheet metal. The Midas heat exchanger, pump, electrial box integration is pretty slick. Apart from those items, the rest just looks like powder coated and folded sheet metal, within a lightweight SHS frame, excluding fittings, couplings, and PDU.