Fans, Blowers & Ventilation

Frequently Asked Questions

Axial or centrifugal — which should I specify?

As a rule of thumb, axial fans suit high-airflow, low-pressure duties such as general ventilation and cooling, while centrifugal fans are typically the right choice when the system needs to overcome higher static pressure — dust extraction, process air, combustion and ducted networks. The cleaner way to decide is to share your duty point (required m3/h or CFM and the static pressure in Pa, plus air temperature and any dust/corrosion factors), and a partner can select an axial, centrifugal or blower configuration against it.

What's the MOQ across this category?

It depends heavily on size and engineering content. For large engineered fans, blowers and air-handling units, orders as small as 1–5 units per configuration are usually workable. For small commodity items such as inline duct fans or compact ventilators, MOQs are higher and may run into the hundreds. Mixed-spec project packages consolidated under one order generally accept smaller quantities per line.

What performance and compliance documentation is available?

Where specified, partner manufacturers can supply aerodynamic performance test reports referenced to ISO 5801 or ANSI/AMCA 210, motor IE-class documentation, CE marking under the applicable directives (LVD/EMC, Machinery and ErP/Ecodesign where in scope), and RoHS/REACH declarations. ATEX-rated builds for hazardous areas are available where the duty calls for them. SABER is coordinated for Saudi shipments. Exact certification is confirmed per item at inquiry.

Can motor voltage, frequency and drive type be configured?

Generally yes. Units are commonly offered for 230/400 V 50 Hz and other regional supplies, with direct-drive, belt-drive or EC/variable-speed (inverter) arrangements, and IE-class motors selected to suit ErP and local efficiency rules. IP rating, insulation class and any ATEX or corrosion-protection requirements are set against the application. Share supply voltage, frequency, duty point and ambient conditions so the configuration is matched correctly.

Do partners build to OEM specs or for system integrators?

A subset of Himalay's partner network supplies ventilation and HVAC OEMs and project integrators with built-to-spec fans, blowers and air-handling assemblies. Share your drawing, duty schedule or datasheet at inquiry and we match a qualified manufacturer; OEM/private-label and project-specific customisation are arranged where supported.

What are typical lead times to EU/GCC ports?

Catalogue or lightly configured fans and blowers typically take around 4–8 weeks to manufacture and test; large engineered or air-handling systems run longer. Full CIF to Rotterdam, Antwerp, Jebel Ali or Dammam is commonly 6–12 weeks door-to-door for standard items, with engineered systems extending beyond that. Timelines are confirmed against the final configuration and freight booking.