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 15, 2026 / Engineering Case Studies

24V Cross Flow Fan: 180 m3/h Engineering Case

See how our engineers configured a custom 24V cross flow fan to delive...

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By longwell / April 15, 2026 / Engineering Case Studies

200°C Steam System Exhaust: 3100 m3/h at 1280 Pa

See how we built a 2.2kW boiler induced draft fan to survive 200°C con...

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longwell-wi-6961899402-project
By longwell / April 15, 2026 / Engineering Case Studies

Outdoor HVAC Fan Motor Mounting Screws: M4x10 Lock Design

Learn how we solved severe vibration issues with custom M4x10 fan moto...

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longwell-lwbe3g225-072ns-07-pr
By longwell / April 15, 2026 / Engineering Case Studies

Class F EC Centrifugal Fan Upgrade for Compact AHUs

Learn how a Class F EC centrifugal fan upgrade resolved strict thermal...

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longwell-wi-6957108160-project
By longwell / April 14, 2026 / Engineering Case Studies

19,000 CFM Smoke Exhaust Fan System for Tunnel Ventilation

See how we built a 19,000 CFM smoke exhaust fan for tunnel safety. We ...

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longwell-lwae3g450ss-5mew-03-0
By longwell / April 14, 2026 / Engineering Case Studies

Converting a 230V System to a 380V 450mm EC Axial Fan

First, learn how we upgraded a 450mm EC axial fan to a 380V three-phas...

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longwell-wi-6957113361-project
By longwell / April 14, 2026 / Engineering Case Studies

24V Heated Blower Design for an 8.93 Cubic Feet Enclosure

Read the engineering logic behind pairing a 24V DC cross flow fan with...

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longwell-wi-6957166748-project
By longwell / April 14, 2026 / Engineering Case Studies

15000 m3/h Fan for Cement Filter Systems

We engineered an 18.5 kW industrial centrifugal fan for a cement plant...

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longwell-wi-6957086205-project
By longwell / April 14, 2026 / Engineering Case Studies

1000 m3/h Cross Flow Cooling Fan for 800 kVA Transformers

See how a 50W cross flow cooling fan delivers 1000 m3/h. It safely coo...

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longwell-wi-6957173679-project
By longwell / April 14, 2026 / Engineering Case Studies

150mm Wide Voltage DC Fan for Window Ventilation

A customer needed a wide voltage dc fan for home windows. Read how we ...

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