In practical terms, EMAX4 is aimed at delivering the same airflow with less power (or more airflow for the same power), and Multi-Wing also claims a 2–3 dB reduction in noise compared with standard profiles.

That matters in demanding environments like mining and heavy industry, where fans often work in installed conditions – behind radiator cores, inside shrouds, and alongside guards and ducting – not in open “free air”. EMAX4 is engineered to fit Multi-Wing’s existing hub system, keeping the modular benefits: blade count and pitch options, plus add-ons to tune performance to the duty point.

One of our recent builds using this blade profile was a radiator cooling fan for an underground LHD (load–haul–dump) mining machine – a tough, high-duty application where efficiency and reliable airflow are critical.

If you’d like to see whether EMAX4 suits your application, send your diameter, RPM, and target airflow/pressure and we’ll recommend a configuration.