Engineering Case Studies

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

Axial fan with a circular wire guard and metal blades
By longwell / May 21, 2026 / Engineering Case Studies

AC Axial Fan Specifications and Wall Plate Mounting Designs

Technical documentation and specification output for AC axial fans acr...

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Illustration of three separate fan types: a household exhaust fan, a portable inflatable blower and an industrial pedestal fan
By longwell / May 21, 2026 / Engineering Case Studies

Fan Specification Sheet Request for Three Fan Families

LONGWELL prepared a drawing archive after a customer requested specifi...

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Engineering reference photo accompanying this project record
By longwell / May 21, 2026 / Engineering Case Studies

LONGWELL 470mm Plastic Centrifugal Fan Impeller LWB-φ470*147-01

Engineering specifications for the LONGWELL LWB-φ470*147-01 plastic ce...

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Forward-curved centrifugal blower in a scroll housing
By longwell / May 21, 2026 / Engineering Case Studies

Custom Double Inlet Centrifugal Fan for 1700 m³/h Airflow Target

LONGWELL engineering custom proposal for 180mm AC double inlet centrif...

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Axial fan with a circular wire guard and metal blades
By longwell / May 21, 2026 / Engineering Case Studies

LONGWELL LWAA2D250S-5MKW-47-00 AC Axial Fan Drawing Specification

Technical specification overview for LONGWELL LWAA2D250S-5MKW-47-00 AC...

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Cross-flow fan assembly with a metal tangential impeller and end-mounted motor
By longwell / May 20, 2026 / Engineering Case Studies

LONGWELL 26.5V DC Cross Flow Fan Update for Model LWCD-60420MN-10-41

LONGWELL updated the drawing and assigned part number LWCD-60420MN-10-...

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Backward-curved centrifugal fan with a metal impeller
By longwell / May 20, 2026 / Engineering Case Studies

Fixed-Speed DC Centrifugal Fan Engineering for LWBD3G175-072NM-02-14

Technical specification details for LONGWELL LWBD3G175-072NM-02-14, a ...

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Backward-curved centrifugal fan with a metal impeller
By longwell / May 20, 2026 / Engineering Case Studies

LONGWELL LWBD3G175-072NM-02 DC Backward Centrifugal Fan Technical Specification

Technical specification for the LONGWELL LWBD3G175-072NM-02 DC backwar...

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Illustration of a compact square-frame axial cooling fan with corner mounting holes
By longwell / May 19, 2026 / Engineering Case Studies

LONGWELL LWAD8025MX-31 24V DC Axial Fan Specification Project

Engineering specification details for the LONGWELL LWAD8025MX-31 24V D...

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Axial fan with a circular wire guard and metal blades
By longwell / May 19, 2026 / Engineering Case Studies

LONGWELL 300mm AC Axial Fan with Wall Plate for Heat Pump Evaporators

Technical specification and layout details for LONGWELL LWAA4E300S-5MG...

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