Fan Manufacturing

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

longwell-wi-7075113607-project
By longwell / August 17, 2026 / Engineering Case Studies

120mm Cross Flow Fan: 50,000 Unit OEM Assembly Project

Read how we engineered a custom 120mm cross flow fan assembly deliveri...

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longwell-wi-7073897421-project
By longwell / August 14, 2026 / Engineering Case Studies

Designing a 48mm Neoprene Hub for High-Volume HVAC

See how we designed a cross flow fan rotor hub with chloroprene rubber...

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Axial blower stator with a copper motor winding, specified explicitly
By longwell / August 10, 2026 / Engineering Case Studies

Why the Customer Wrote “100% Pure Copper” on the Order

Nobody specifies what they trust to be there. When a procurement team ...

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Heat exchanger axial fans built as a pilot production run of fifty
By longwell / July 31, 2026 / Engineering Case Studies

Fifty Units First: What a Pilot Batch Is Actually For

The drawings were approved and the samples passed. The customer still ...

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A 200mm DC axial fan held under a 1050 gram fan weight limit
By longwell / July 28, 2026 / Engineering Case Studies

The Fan Had a Weight Limit Before It Had an Airflow Target

Airflow, pressure, noise, voltage — every order states those. This one...

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Forward-curved blower housing from low-volume tooling, 150 units a year
By longwell / July 27, 2026 / Engineering Case Studies

A Custom Stamping Die for 150 Fans a Year

Tooling economics usually assume volume. This customer commissioned a ...

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Split impeller sections and central coupling for a 1200mm cross-flow fan
By longwell / July 27, 2026 / Engineering Case Studies

Twelve Hundred Millimetres of Airflow From Two Pieces

No single impeller extrusion survives 1200mm at speed. The customer ne...

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By longwell / July 25, 2026 / Engineering Case Studies

The Fan Sits Millimetres From a 1000-Watt Heater

Buy a fan and a heater separately and someone still owns the gap betwe...

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Cross-flow fan under fan quality inspection against drawing criteria
By longwell / July 10, 2026 / Engineering Case Studies

No Rust, No Burrs, No Gaps: the Drawing Said So

Most drawings specify what the fan does. This one also specified what ...

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longwell-lwbe3g280-102ns-25-pr
By longwell / May 8, 2026 / Engineering Case Studies

Modifying a 280mm EC Centrifugal Fan Inlet for HVAC Systems

Learn how we changed the inlet cone on a 280mm EC centrifugal fan to f...

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