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Engineering Case Studies

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

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

EC Variable Frequency Centrifugal Blower Design: LWFDF-11-3A-1.5-4P-3-002

Engineering specification for LONGWELL LWFDF-11-3A-1.5-4P-3-002 forwar...

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

DC Axial Fan Specification for LWAD3G250HS-7MKB-02 Telecom Cooling

Technical specification details for the LONGWELL LWAD3G250HS-7MKB-02-0...

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AC cross-flow fan assembly with a metal tangential impeller and end-mounted motor
By longwell / July 21, 2026 / Engineering Case Studies

LONGWELL AC Cross Flow Fan Specification for 2300 RPM Operation

Engineering specification and drawing layout for LONGWELL AC cross flo...

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

LONGWELL LWPVL-1270T-01 Axial Fan Technical Specification

Technical specification and drawing output for the LONGWELL LWPVL-1270...

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Axial fan with a circular wire guard and metal blades
By longwell / July 20, 2026 / Engineering Case Studies

LONGWELL Dual-Speed AC Axial Fan Specification: Model LWAA6D900S-5MEB-09

Engineering specification for the LONGWELL LWAA6D900S-5MEB-09 380V dua...

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Illustration of a compact personal heater with a front honeycomb grille
By longwell / July 20, 2026 / Engineering Case Studies

800W Personal Heater: European Plug and Packaging Requirements

A July 2026 LONGWELL personal-heater project recorded an 800W power re...

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Axial fan with a circular wire guard and metal blades
By longwell / July 20, 2026 / Engineering Case Studies

LONGWELL AC Axial Fan Specification: LWAA4E250B-7MKW-48-00

Technical specification details for LONGWELL LWAA4E250B-7MKW-48-00 AC ...

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Axial fan with a circular wire guard and metal blades
By longwell / July 18, 2026 / Engineering Case Studies

LONGWELL AC Axial Fan Engineering Drawing for LWAA4D450S Model with Panel

Engineering specification for the LONGWELL LWAA4D450S AC axial fan wit...

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Axial fan with a circular wire guard and metal blades
By longwell / July 18, 2026 / Engineering Case Studies

8-Blade Metal Axial Impeller: Sample-Based Drawing and Tooling Review

A customer requested an eight-blade metal impeller drawing matching a ...

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Axial fan with a circular wire guard and metal blades
By longwell / July 17, 2026 / Engineering Case Studies

Drawing and Label Update for LWEA2E250SM-082 AC Axial Fan

LONGWELL engineering updated technical documentation for the LWEA2E250...

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