STULZ Tech Brief: High-density and rack-based cooling
News | 08.07.2025
In this issue, we describe High-density and rack-based cooling — precision air conditioning systems for accurate cooling of high heat loads.
STULZ is a recognized leader in IT infrastructure cooling solutions, and their systems for high-density and rack-based loads are key for modern data centers. As equipment density in server racks increases, traditional room cooling methods become less effective. This is where Stulz solutions, designed for direct heat removal, demonstrate their advantage by providing optimal operating conditions for equipment.
AirBooster 2 – Optimizing Server Rack Cooling with Modern Airflow Management
AirBooster 2 is an ideal solution for increasing the efficiency of server rack cooling. These units are installed directly in front of the server rack in the raised floor, utilizing the existing air supply system from the air conditioners. They are precisely controlled according to cooling needs, ensuring fast, simple, and reliable air delivery.
Key advantages of AirBooster 2:
- Optimized pinpoint cooling of "hot spots" in server racks.
- Control according to cooling needs for efficient and reliable air supply.
- Simple installation, taking minimal time.
- Perfectly suited for standard raised floors with a grid size of 600x600 mm.
- Low height allows installation under the raised floor (400 mm).
- Air delivery up to 4,360 m3/h.
CyberRow – Professional Server Rack Cooling with Innovative Air Delivery
In the CyberRow in-row air conditioning unit, innovative horizontal air delivery is combined with state-of-the-art technology that operates powerfully, flexibly, and efficiently — directly at the rack. Fluctuating server rack loads, space limitations, lack of a raised floor, existing high-density server technologies — these are precisely the server rack cooling scenarios for which CyberRow was developed.
Key advantages of CyberRow:
- Suitable for server rack cooling in data centers with or without a raised floor.
- Indirect Dynamic Free Cooling for maximum savings potential.
- Targeted cooling of high-density racks.
- Can be used with racks from any manufacturer.
- Individual supply air boost in three horizontal zones.
- Cooling capacity (kW): 11 – 58.
- Air delivery: left and right, left, right, forward.
CyberRack Active Rear Door – Optimal Operating Conditions via an Active Server Rack Rear Door
The CyberRack Active Rear Door is a heat exchanger door with EC fans for installation on the rear door of server racks. The server rack door is replaced with the CyberRack Active Rear Door, which transforms the rack into an active server rack that no longer discharges any heat load into the data center.
Key advantages of CyberRack Active Rear Door:
- Suitable for any rack.
- Active heat exchanger doors can be used independently of existing precision air conditioning units, or can supplement them.
- Maximum energy efficiency thanks to high rack inlet temperatures.
- Less load on room air conditioning, as heat is discharged directly from the rack.
- Maintenance-friendly design.
- Cooling capacity (kW): 18.8 – 32.3.
Stulz solutions for high-density and rack-based systems are key to ensuring the reliability, energy efficiency, and uninterrupted operation of modern data centers. As an official Stulz distributor, Softprom is ready to provide a full range of services — from equipment selection to its implementation and support.
Softprom is an official distributor of Stulz, guaranteeing access to a full range of products, expert support, and high-quality service. By contacting us, you receive not only advanced technologies but also a reliable partner who will help optimize your IT infrastructure and ensure its uninterrupted operation. Send a consultation request today to learn more about Stulz solutions and their benefits for your business.
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