Focus Companies

Ebmpapst Srl 23.04.2026

RadiCal from ebm-papst: High-efficiency centrifugal fans for advanced HVAC applications

Backward curved centrifugal fans with EC technology, designed for maximum energy efficiency and noise reduction in HVAC systems

In the landscape of modern HVAC systems, air management requires increasingly high-performance, compact, and intelligent solutions. This is where RadiCal technology comes in, developed by ebm-papst to optimize airflow and minimize energy losses.

The heart of the system is a backward curved impeller, designed through advanced aerodynamic simulations. This configuration improves air intake and flow distribution, reducing turbulence and energy loss.

The result is a fan capable of guaranteeing high performance with low consumption , maintaining operational stability even in the presence of high back pressures, typical of ducted systems.

 

Integrated EC motor and compact design: advantages in terms of installation and space requirements in HVAC systems

One of the distinctive elements of the RadiCal range is the compact design, made possible by the integration of the external rotor EC motor directly coupled to the impeller.

This configuration allows for plug-and-play solutions, simplifying installation, wiring, and maintenance. The absence of a scroll in the free-blowing models also allows for greater design flexibility, reducing overall dimensions and facilitating integration into air handling units, rooftops, and advanced ventilation systems.

GreenTech EC technology also ensures precise speed control, allowing the fan to dynamically adapt to the system's operating conditions.

 

Reducing noise emissions: fluid dynamic design and solutions for acoustic comfort

In addition to energy efficiency, a central aspect in the design of RadiCal fans is noise reduction.

The optimised impeller design, combined with dedicated solutions such as the air inlet grilles, allows for limited noise emissions and improved overall fluid-dynamic behaviour.

This translates into greater comfort in the environments served, making these fans particularly suitable not only for industrial applications, but also for civil and tertiary contexts where noise control is a fundamental design requirement.

 

RadiCal fan applications in AHUs, ducted systems and high static pressure systems

Thanks to their versatility, RadiCal centrifugal fans are used in numerous application areas:

  • air handling unit (AHU)
  • ventilation systems for commercial and residential buildings
  • high-efficiency HVAC systems
  • industrial applications with high static pressure requirements

The ability to generate high pressure by diverting airflow radially makes them ideal for complex and ducted systems, where performance must remain constant even under variable operating conditions.

 

ebm-papst technology and a systemic approach to high-efficiency ventilation

With the RadiCal range, ebm-papst confirms its leading role in the development of advanced air movement solutions, focusing on energy efficiency, silence and technological integration.

An approach that responds to the needs of contemporary HVAC design, where each component contributes significantly to the overall performance of the system and the energy sustainability of buildings.

FAQ

I ventilatori RadiCal di ebm-papst sono progettati per unità di trattamento aria (UTA), rooftop, sistemi VAV e ventilazione controllata in ambito commerciale e industriale. Sono particolarmente indicati in impianti evoluti dove sono richieste elevate efficienze energetiche, compattezza e controllo preciso della portata.

L’adozione è consigliata in progetti soggetti a requisiti stringenti di efficienza energetica (es. direttive Ecodesign) o dove il costo operativo dell’energia è rilevante. Sono ideali anche in retrofit di UTA esistenti per migliorare prestazioni e ridurre consumi senza modifiche strutturali importanti.

I RadiCal integrano motori EC ad alta efficienza, elettronica di controllo e giranti ottimizzate aerodinamicamente. Questo consente rendimenti superiori, riduzione dei consumi elettrici, minore rumorosità e una gestione più precisa dei punti di lavoro. Inoltre, la regolazione continua della velocità migliora l’adattabilità ai carichi variabili.

Rispetto ai ventilatori AC tradizionali, i RadiCal eliminano la necessità di inverter esterni grazie al controllo elettronico integrato. A differenza dei plug fan standard, offrono una progettazione più compatta e ottimizzata che migliora il flusso d’aria e riduce le perdite. Questo si traduce in maggiore efficienza complessiva del sistema.

I RadiCal sono progettati per un’integrazione diretta in UTA e sistemi HVAC modulari. È importante valutare correttamente curve caratteristiche, perdite di carico del sistema e strategia di regolazione (pressione costante, portata variabile). L’interfacciamento con sistemi BMS è semplificato grazie all’elettronica integrata e ai protocolli di comunicazione disponibili.

Questi ventilatori aiutano a risolvere criticità legate a consumi elevati, rumorosità e scarsa modulazione nei sistemi HVAC. Migliorano la stabilità del funzionamento in condizioni di carico variabile e consentono una gestione più efficiente della ventilazione, contribuendo anche al rispetto dei requisiti normativi in termini di efficienza energetica.

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RadiCal from ebm-papst: High-efficiency centrifugal fans for advanced HVAC applications
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