Fan Manufacturing

Inside fan production: coil winding, rotor magnetisation, impeller forming and welding, balancing, run-in test, salt spray and life testing.

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By longwell / April 21, 2026 / Engineering Case Studies

High-Pressure Make-Up Air: 300mm EC Circular Duct Fan

Learn how an EC circular duct fan delivers 747 Pa in a tight 255 mm sp...

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longwell-wi-6975592248-project
By longwell / April 21, 2026 / Engineering Case Studies

Transformer Cooling Fan Replacement for 220V Dry-Type Units

See how we built a 220V transformer cooling fan to replace old GFDD420...

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By longwell / April 20, 2026 / Engineering Case Studies

Commercial Air Handler EC Cross Flow Fan 640 m³/h

Learn how we sized an EC cross flow fan to deliver 640 m3/h at 1500 RP...

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longwell-wi-6974349832-project
By longwell / April 20, 2026 / Engineering Case Studies

Tube Axial Fan M6 Fastener Replacement Project

An HVAC OEM needed new fan motor mounting hardware to fix severe rust ...

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By longwell / April 17, 2026 / Engineering Case Studies

Electronics Enclosure Cooling: Achieving 191 m³/h Under 475mm

Learn how we modified a standard DC cross flow fan with an iron safety...

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By longwell / April 17, 2026 / Engineering Case Studies

24V Chassis Fan: Upgrading to Nitrile Rubber Supports

See how a pure nitrile rubber sleeve stops failures in a DC cross flow...

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By longwell / April 17, 2026 / Engineering Case Studies

140mm EC Centrifugal Fan Hits 845 Pa for Tight Spaces

A customer needed a 140mm EC centrifugal fan for a tight space. We bui...

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longwell-wi-6968261568-project
By longwell / April 16, 2026 / Engineering Case Studies

380V Vertical Circulation Fan for Greenhouses

See how we designed a 380V vertical circulation fan to move 5800 m3/h ...

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longwell-wi-6968586891-project
By longwell / April 16, 2026 / Engineering Case Studies

Sourcing a 380V Forward Centrifugal Fan for a 443 Pa System

Learn how we replaced an obsolete unit with a custom 380V forward cent...

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longwell-wi-6968599815-project
By longwell / April 16, 2026 / Engineering Case Studies

OEM Specs for an 80 x 600mm Cross Flow Fan Impeller

Learn how we engineered a custom 80x600mm metal cross flow fan impelle...

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