QX Dynamics
QX Dynamics
Products Hyper QXchanger™ Dry Cooler CRAH Fan Wall Rear Door Heat Exchanger Heat Path Company Contact Request a Quote

Data-center cooling equipment

Cutting edge
cooling technology
for Hyperscalers.

Hyper QXchanger™ dry coolers, CRAHs, fan walls and rear door heat exchangers.

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01 / HEAT REJECTION

Hyper QXchanger™

Dry coolers for campus-scale heat rejection. No water consumed.

See the dry cooler

02 / AT THE RACK

Rear Door Heat Exchanger

Active rear doors take the heat out at the rack, before it reaches the room.

See the RDHx

03 / IN THE HALL

CRAH & Fan Wall

Air handlers and fan walls for the data hall.

CRAH Fan Wall

QX Dynamics

Designed and built
in the United States.

Follow the heat path Request a quote
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Hyperscale campusesAI data centersColocationEnterprise data centers Hyperscale campusesAI data centersColocationEnterprise data centers Hyperscale campusesAI data centersColocationEnterprise data centers Hyperscale campusesAI data centersColocationEnterprise data centers

The QX line

Four product lines.

Rear doors at the rack, CRAHs and fan walls in the hall, dry coolers in the yard.

Flagship
Hyper QXchanger dry cooler array

Heat rejection

Hyper QXchanger™ Dry Cooler

Industrial dry cooler for hyperscale and AI campuses. Waterless heat rejection, large slow-turning fans, a VFD on every fan, and site-specific array CFD on every project.

WaterlessLow-speed fansVFD on every fanSite CFD
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Downflow CRAH

Room cooling

CRAH

Chilled-water computer room air handlers in downflow and upflow configurations, for raised-floor and slab-floor halls.

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Rear door heat exchanger

Rack cooling

Rear Door Heat Exchanger

Active rear doors for high-density racks, in Standard and High-Capacity lines.

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Fan wall assembly

Air movement

Fan Wall

Modular EC fan arrays that hold full airflow with one fan out of service. Hinged fan doors for access from the gallery.

EC motorsN+1 fansGallery access
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The heat path

Where each
product sits.

Heat leaves the servers in the rack exhaust, goes into water at a coil, and leaves the site through a dry cooler. QX makes the coils at the rack and in the hall, and the dry coolers in the yard.

Data hall Ceiling return Raised floor supply Yard Plant 01 02 03 04
Air, cool to hotWarm water returnCool water supplyHeat to ambient air
01 / RACK Rear doors at the rack A rear door heat exchanger puts a water coil and fans directly on the rack exhaust. Heat goes into water before it mixes with room air, so high-density racks can sit in an air-cooled hall. Rear Door Heat Exchanger
02 / HALL CRAHs and fan walls CRAHs and fan walls pull hot-aisle air across chilled-water coils and return it to the cold aisle, under a raised floor or straight into the room. CRAHFan Wall
03 / PLANT The facility water loop The facility water loop carries heat from every coil in the building out to the yard.
04 / YARD Dry coolers in the yard Hyper QXchanger dry coolers push the heat into ambient air through finned coils, with no evaporation and no make-up water. Every array is laid out against the site's wind with our own CFD. Hyper QXchanger™

Flagship: Hyper QXchanger™

Dry coolers for
campus-scale loads.

A dry cooler built for the yard of a hyperscale campus: large fans turning slowly, coil banks that lower out of the casing for service, and an array layout checked against the site's wind before anything is built.

  • Waterless operation

    Closed loop on water or propylene glycol. No make-up water, treatment, blowdown, drift or visible plume.

  • Large, slow-turning fans

    Two large-diameter axial fans per module in shrouded stacks, each on its own variable-frequency drive. Low rotational speed keeps noise down.

  • Recirculation, solved

    Big dry-cooler yards breathe their own exhaust and lose capacity on hot, windy design days. Hyper QXchanger arrays don't. We prove it on your site with our own CFD.

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Hyper QXchanger cutaway showing fans, drives and coil banks

1,000+

CRAHs built and delivered

100+

Chiller systems integrated

Made in the United States

Designed, built and tested in our own factory

Talk to QX Dynamics.

Tell us about your project and we'll get back to you.

Request a Quote Ask for a site study