September 19, 2023
RS is now stocking the revolutionary new DiaForce 120mm diagonal compact fans from ebm-papst.
The new DiaForce fans feature an innovative design that combines the high airflow volume of an axial fan with the high static pressure capabilities of a centrifugal fan. This inventive combination delivers the high performance of counter-rotating axial fans with less noise and significant power efficiency improvements to satisfy the challenging cooling demands of evolving digital connectivity applications.
Developed to meet the ambitious specifications of a well-known electronics giant looking to cool its next-generation AI servers, ebm-papst’s new DiaForce fans deliver up to 50% more air performance than the best single-stage compact axial fans currently on the market while generating 6–12dB(A) less noise. They also offer a significant reduction in power, less mechanical vibration, and a smaller and lower-profile footprint.
DiaForce diagonal compact fans feature an aerodynamically optimized design with unique impeller, housing, and inlet nozzle geometries; a larger outlet than intake opening with optimized guide vanes for higher pressure increase; a conical cover plate that rotates with the impeller; and a high-efficiency, state-of-the-art GreenTech DC motor. Air flows through the fans in both an axial and radial direction.
Combining the key benefits of each design generates a higher static pressure than standard axial fans can provide while maintaining the quick and easy-to-install axial form. The DiaForce blade tips pass directly into the cover plate which eliminates tip gap and alleviates turbulence in the gap area (where there’s a considerable pressure gradient), resulting in significant noise reductions that deliver the quietest performance of any fan with this power density.
Thanks to this unique design and the outstanding performance it enables, DiaForce fans can replace the larger, noisier, less efficient, and less integration-friendly counter-rotating fans commonly used to cool densely packed electronics in chassis. They can also create redundancies not possible with conventional single-stage fans that have to operate at their power limit to deliver adequate cooling and provide future-proof solutions for servers that manage massive amounts of data. Ideal applications include server, base station, mass storage, and cabinet cooling as well as autonomous and AI technologies and 5G and IoT networks.
The new DiaForce diagonal compact fans from ebm-papst are currently available in a 120mm footprint that measures 119 x 119 x 86mm (L x W x H), moves airflow volumes of 680m3/h or 400cfm, consumes 395W of power, exhibits 48% overall efficiency, and has a nominal voltage of 48VDC with a range of 36–60VDC, a nominal speed of 17,200rpm, and operating temperatures extending from -20°C to +70°C (-4°F to +158°F). However, this is just the first of multiple DiaForce fan releases; 40mm, 60mm, and 80mm models are in active development and expected to be released to market in the coming year.
Additional features of DiaForce compact diagonal fans include a state-of-the art motor, advanced integrated and optional functionalities, a convenient form factor, optional diagnostic tools, and compliance with all regulatory standards.
DiaForce fans have a compact, 500W, three-core GreenTech DC motor engineered to drive substantial energy savings, dynamically balance the impeller, and deliver a long service life. They are also equipped with cooling openings that dissipate heat from the ball bearings to improve thermal management and made without rare earth metals for improved sustainability.
Integrated functions include locked-rotor protection for improved safety, output signals proportional to motor speed, and speed control capabilities with multi-option control input. Optional functions include go/no-go and speed limit alarms, internal and external temperature sensors, analog control input, and moisture protection.
The series features a compact form factor with an industry-standard assembly geometry and supports quick and easy installation via four mounting holes on both the inlet and outlet sides.
The optional FanCheck GreenIntelligence diagnostic tool enables maximum efficiency, intelligent networking capabilities, and numerous monitoring and control functions while also calculating the realistic service life of the fan based on its operating speed, temperature, and preset environmental parameters. These capabilities support predictive maintenance strategies, reduce equipment downtime and associated costs, extend equipment lifetimes, and deliver clear, competitive advantages for the interconnection and intelligent control of fans, drives, and systems.
DiaForce fans are also compliant with all regulatory standards including NEBS, OSHA, ANSI, and ETSI.