Day: April 21, 2026

longwell-lwfd3g180-092sm-01-sp
By longwell / April 21, 2026 / Engineering Case Studies

Cabinet Cooling 24V DC Centrifugal Fan and PWM Controller

Review the engineering constraints, trade-offs, and costs of specifyin...

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longwell-lwpve-1220-project-im
By longwell / April 21, 2026 / Engineering Case Studies

Negative Pressure Exhaust Fan: 38,000 m3/h Specification

Review a real project where we specified a negative pressure exhaust f...

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longwell-lwea600s-project-imag
By longwell / April 21, 2026 / Engineering Case Studies

Custom 110V Fan Engineered for 6900 CFM and Extreme Heat

We engineered a custom 110V explosion proof axial fan for a US client....

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longwell-lwde-300-spec-sheet-0
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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