QUANTOR COMPUTE by WTG-Quantor Talk to a cooling specialist
German-engineered liquid cooling · since 1970

More Compute.
Less Cooling Footprint.

Compact, air-cooled water chillers for server rooms, R&D labs, edge sites and high-density equipment. Add cooling capacity where the heat is, without turning it into a facility build-out.

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German-engineered
Compact footprint
R513A low-GWP
North American sales & support
Quantor MCK compute cooling unit
Built for Server & HPC racks R&D labs & test benches Edge compute pods University & research labs

Cooling built around what compute needs.

For more than 50 years, WTG-Quantor has built compact temperature-control systems for European producers, where equipment rooms are small, floor space is limited and energy efficiency matters. That same engineering philosophy is exceptionally well suited to today's compute environment.

Reliable compute cooling

Built for around-the-clock operation with stable coolant temperatures. In continuous service at a Fortune 500 technology company since 2019.

Maximum cooling, minimal space

Chiller, tank and pump in one compact, air-cooled housing, leaving more floor space for compute and adding capacity without a facility build-out.

Demand-matched performance

i models use an inverter compressor, so cooling output follows a changing load. Fixed-speed models suit loads that stay steady.

Designed for serviceability

Accessible components, a fault history on the controller display, an alarm contact on Chilly Max and MCK, and optional Modbus. Spare parts stocked in the USA and Germany.

Precision cooling, right where compute happens.

From portable lab cooling to higher-density compute installations, choose the system sized around your actual heat load.

Chilly 45

Compact Lab Cooling
Quantor Chilly 45 compact chiller
Cooling capacity~4.2 kW (14,300 BTU/h)*
Footprint765 × 770 × 515 mm
Tank25 L stainless steel
RefrigerantR513A
Best for:
  • Research & development
  • Test benches
  • Individual systems
  • University labs
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Chilly Max

Portable Compute Cooling
Quantor Chilly Max chiller on casters
Cooling capacity6.4 – 12.7 kW*
(models 50 | 70i | 90 | 110)
CompactMobile design on casters
Water temp range−10 °C to +40 °C
RefrigerantR513A
Best for:
  • Small server & GPU clusters
  • Edge compute
  • R&D environments
  • Supplemental cooling
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MCK Series

Higher-Capacity Compute Cooling
Quantor MCK cooling unit
Cooling capacity13 – 79 kW*
(fixed-speed and i models)
Compact designHigh kW per floor area
Tank120 – 300 L stainless steel
RefrigerantR513A
Best for:
  • Multi-rack rooms
  • Larger labs
  • High-density compute
  • Enterprise deployments
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* Rated at 32 °C ambient, 15 °C water. MCK 641 and MCK i models rated at 20–25 °C water. Chilly Max and MCK also come as i models with an inverter compressor.
Size my system

Not sure which system you need?

Three numbers get us most of the way. A cooling specialist reviews them and recommends the right unit.

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STEP 1Heat loadTotal kW your equipment puts out
STEP 2Fluid temperatureRequired coolant supply temperature
STEP 3Available powerVoltage and phase at the install site

European industrial cooling, re-engineered for compute.

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Compact by design

More cooling kW per square foot. Born in space-constrained European facilities.

Microchannel condensers

All-aluminum microchannel coils and plate heat exchangers for efficient heat rejection.

Stainless fluid system

Stainless steel tanks with level indicators and insulated piping for long equipment life.

Modern refrigerant

R513A: non-flammable (A1) with a GWP of about 630, around 70% lower than R410A.

Vertical heat rejection

Top-discharge fans on Chilly Max and MCK simplify placement against walls.

Built-in pumps

Integrated centrifugal pumps at about 2.5–4 bar, depending on model. Variable-speed and high-pressure pumps on request for Chilly Max and MCK.

Built for compute wherever compute happens.

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Engineering test bench

R&D & test labs

GPU, accelerator and electronics testing, plus experimental systems.

University research lab

University & research

Dedicated liquid cooling without upgrading an entire central plant.

Edge compute room

Edge compute

Compact cooling where floor space is limited.

Liquid-cooled server racks

Supplemental rack cooling

Added capacity for a few high-density racks in an existing room.

Robotic production cell

Robotics & automation

Localized cooling for automated industrial systems.

Imaging and analysis lab

Life science & imaging

Precision thermal management for compute-intensive analytics.

Track record

Trusted where uptime matters.

Quantor chillers have been engineered for demanding, around-the-clock installations for more than 50 years. Now that same German-engineered cooling technology is available to labs, research facilities, and edge-compute sites across North America.

50+ yrsGerman cooling engineering
20+ yrsMoreFlavor! and Quantor partnership
2019In AI development labs
Talk to a cooling specialist → Our story
Featured installations

Trusted by two leading AI developers

Our flagship compute installations are proof that Quantor cooling holds up to the most demanding hardware in the industry.

  • A Fortune 500 technology company, in continuous service since 2019
  • A leading AI research company, since 2026
  • Chilly 45, Chilly Max and MCK units in service