Engineering Case Studies

Application requirements, product choices and engineering project stories from LONGWELL.

longwell-wi-6983541870-project
By longwell / May 6, 2026 / Engineering Case Studies

900 m3/h Cross Flow Fan Replacement for New Energy Systems

Read how we engineered a 900 m3/h cross flow fan replacement. See the ...

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longwell-wi-6983477239-project
By longwell / May 5, 2026 / Engineering Case Studies

Indoor AHU 550W Forward Curved Centrifugal Blower Specs

Review the forward curved centrifugal blower specifications for a 220V...

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longwell-wi-6983407863-project
By longwell / May 5, 2026 / Engineering Case Studies

615mm Air Curtain Rotors: Restricting Runout Under 0.7mm

See how we engineered a 615mm cross flow impeller to run at 1600 RPM w...

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longwell-lwfe3g146-072ds-14-00
By longwell / April 30, 2026 / Engineering Case Studies

Fixing Flange Distortion on a 220V Blower Housing

See why upgrading an EC forward centrifugal fan flange to 2.5 mm requi...

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longwell-wi-6981494893-project
By longwell / April 30, 2026 / Engineering Case Studies

Compact Electronics Cooling with a 5V DC blower fan

Read how our engineering team met aggressive airflow and acoustic targ...

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longwell-lwca-60240sn-06-proje
By longwell / April 30, 2026 / Engineering Case Studies

Custom AC Cross Flow Fan for Tight Square Enclosures

Learn how we customized an AC cross flow fan with a square housing and...

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longwell-lwfe3g146-092ds-10-pr
By longwell / April 29, 2026 / Engineering Case Studies

1236 m3/h EC Centrifugal Fan for Tight HVAC Enclosures

An engineering review on specifying a 190W EC centrifugal fan for a re...

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longwell-wi-6980887054-project
By longwell / April 29, 2026 / Engineering Case Studies

Integrating a 25 m/s Industrial Air Curtain

Learn why direct-wiring a magnetic door switch to a 3.3 kW industrial ...

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longwell-lwfd3g120-072sm-01-pr
By longwell / April 29, 2026 / Engineering Case Studies

Cooling Outdoor Telecom Enclosures with a 24V DC Centrifugal Fan

See how a 24V DC centrifugal fan solved tight size constraints, high s...

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By longwell / April 29, 2026 / Engineering Case Studies

24V Paired DC Cross Flow Fan System for Tight Spaces

Learn how we built a paired DC cross flow fan system. This exact 24V s...

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