A new class of
heat exchanger

Phasic 500 kW heat exchanger core, printed as a single piece of metal

Your flow. Your temperatures. Your pressures.
One piece of metal, printed to match.

The most important part of your CDU is the one you didn't design.

Air can't keep up with rack power, and your customers want density you can't ship. The limit is your heat exchanger: stamped, brazed, and in every competitor's cabinet.

What if that limit became your edge?

5–15%
of your bill of materials: 100%
of your thermal ceiling

Modern data centers need top-performing CDUs.
Performance starts with Phasic.^‡

+20%^†

Rack Density

More compute in the same room. It's that simple.

The core does the same duty in less than half the volume. Spend the freed space on a smaller cabinet, or on more capacity in the one you already ship.

$30M^*

a year

20 MW more sellable compute

20% more density at a 100 MW site is 20 MW of added capacity. At wholesale colocation rates that is roughly $30M a year from the same footprint and the same building.

$350K^*

a year per degree

Every degree cuts chiller runtime

A tighter approach temperature allows warmer facility water and more free-cooling hours. ASHRAE puts each degree at 1 to 3% of cooling energy. At 100 MW and PUE 1.4, the 1% case is about $350K a year.

* Figures assume a 100 MW site, wholesale colocation rates and PUE 1.4.
† A smaller core removes what forces a bigger enclosure or a second unit.
‡ Each part is designed to your duty point; competitors specify from the same five suppliers.

It all comes down to geometry.

Shapes that can’t be drawn by hand or stamped by a press.

AI designs it

Flux is trained on more than 80,000 CFD simulations. It takes your duty point and returns printable CAD in about a minute, generating novel geometries that a thermal engineer, a CFD analyst and a CAD designer would spend months converging on.

Sub-millimeter channels, tuned per side

Sub-millimeter channels, with wall thickness and channel size set by your duty point rather than by a tool. Each fluid side is optimised on its own. A brazed plate presses the same chevron into both sides of every unit it makes, and that is what caps its water side. Printing removes the constraint entirely.

Printed as one piece of metal

No plate pack. No braze. No gaskets. One printed part, in stainless or aluminium, with no joint anywhere for a coolant to find.

A 500kW build, measured.

One build, not a catalog part. PHX-2ECD27-SS316-500 against a conventional brazed plate at the same duty and the same approach temperature. Design to different constraints and these numbers move.

Metric	Phasic	Conventional Brazed Plate
Duty	500kW	500kW
Approach Temp.	3.6°C	3.6°C
Overall U	5,081 W/m²K	2,500 to 3,000
Volume	42L	98L
Weight	85kg	127kg
Pressure Drop	.33 bar	.50 to .65 bar
Parts	1 solid part	About 180 plates
Construction	printed SS316L	Stamped and brazed