Engineering Case Studies

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

Illustration of a portable cylindrical axial ventilator with a carry handle and protective grille
By longwell / April 28, 2026 / Engineering Case Studies

Portable Explosion-Proof Axial Fan Design for LWA-200UM, LWA-250UM, LWA-300UM

Engineering specification and drawing deliverables for 110V 60Hz porta...

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Illustration of a cylindrical activated-carbon filter with a perforated outer shell and round duct collar
By longwell / April 28, 2026 / Engineering Case Studies

Drawing and Specification for 6×20 Activated Carbon Filter

LONGWELL engineering completed technical drawing and specification out...

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Axial fan with a circular wire guard and metal blades
By longwell / April 28, 2026 / Engineering Case Studies

500mm IP55 AC Axial Fan Specification for Wall Plate Mounting

Technical specifications for the LONGWELL 500mm IP55 AC axial fan LWAA...

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Axial fan with a circular wire guard and metal blades
By longwell / April 27, 2026 / Engineering Case Studies

AC Axial Fan Technical Specification: LWAA2E200S-7MKB-50

Technical specification and dimensional drawing for the LWAA2E200S-7MK...

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Engineering reference photo accompanying this project record
By longwell / April 27, 2026 / Engineering Case Studies

210mm Plastic Axial Fan Blade and AC Motor Customization

Engineering summary of plastic axial fan blade model LWA-φ210*75-04 wi...

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Axial fan with a circular wire guard and metal blades
By longwell / April 27, 2026 / Engineering Case Studies

300mm AC Axial Fan Specifications for 440V 60Hz and 110V 60Hz

LONGWELL electrical specifications and technical drawings for 300mm AC...

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Backward-curved centrifugal fan with a metal impeller
By longwell / April 25, 2026 / Engineering Case Studies

Engineering Specification for 280mm EC Centrifugal Fan LWBE3G280-102NS-50-00

Technical specification and drawing scope for the LONGWELL 230V 280mm ...

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Circular inline duct fan with a white cylindrical housing
By longwell / April 23, 2026 / Engineering Case Studies

AC Inline Duct Fan Specification for LWDA Series Models

Technical specifications and drawing documentation for LONGWELL LWDA s...

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Illustration of a portable cylindrical axial ventilator with a carry handle and protective grille
By longwell / April 23, 2026 / Engineering Case Studies

LONGWELL LWA-400SM-05E Explosion Proof Fan Specification

Technical specification and dimension parameters for the LONGWELL LWA-...

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Axial fan with a circular wire guard and metal blades
By longwell / April 23, 2026 / Engineering Case Studies

AC Axial Fan Specification for Hydraulic Radiators: LWAA2D250S-5MEB-31

LONGWELL provided technical specification documentation for the LWAA2D...

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