IP Ratings

IP protection ratings for fans and motors explained, from IP54 to IP66, plus what the rating does not cover in wet, dusty or outdoor installations.

longwell-wi-6935162654-project
By longwell / April 1, 2026 / Engineering Case Studies

A Split AC Indoor Fan Engineered for 61C Extreme Cooling

Review the engineering steps behind this split ac indoor fan project, ...

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longwell-wi-6930756647-project
By longwell / March 30, 2026 / Engineering Case Studies

Specifying a Radial Ceiling Pipeline Fan for Exhaust

Engineering a custom ceiling pipeline fan with a radial impeller. See ...

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By longwell / March 30, 2026 / Engineering Case Studies

220V 30 Inch Pedestal Mist Fan Design Constraints and Output

Review the engineering parameters for a 350W 30 inch pedestal mist fan...

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longwell-lwae3g300st-5pnw-02-p
By longwell / March 30, 2026 / Engineering Case Studies

Converting a 230V 300mm EC Fan from Blowing to Suction

Review an engineering project where we converted a 230v 300mm ec fan f...

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longwell-lwge148s-02-project-i
By longwell / March 30, 2026 / Engineering Case Studies

230V High Static Pressure Blower: 3500 Pa Compact Unit

Read how we engineered a custom 230V high static pressure blower to de...

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longwell-wi-6930157027-project
By longwell / March 28, 2026 / Engineering Case Studies

220V Inline Duct Fan Design for European Standards

See how we engineered a 220v inline duct fan series meeting CE standar...

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longwell-lwe-91294sa-01-projec
By longwell / March 28, 2026 / Engineering Case Studies

220V Elevator Cross Flow Fan: Cabin Ventilation Engineering

See how we engineered this 220V elevator cross flow fan to push 250 m3...

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longwell-lwad6025mm-11-project
By longwell / March 28, 2026 / Engineering Case Studies

60mm DC Cooling Fan for a 60 x 25mm Enclosure Opening

Review the exact engineering trade-offs behind a 24V 60mm dc cooling f...

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By longwell / March 27, 2026 / Engineering Case Studies

Converting a Backward Centrifugal Fan to 115V

Read how we converted a 230V design into a 115v backward centrifugal f...

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longwell-wi-6929422158-project
By longwell / March 27, 2026 / Engineering Case Studies

310V DC Cooling Fan: Meeting the 50 Pa Airflow Constraint

Read how we balanced speed, noise, and static pressure to design a cus...

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