Engineering Case Studies

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

AC cross-flow fan assembly with a metal tangential impeller and end-mounted motor
By longwell / May 18, 2026 / Engineering Case Studies

Cross Flow Fan Dual 50/60Hz Specification: LWCA-120380SN-07-00

LONGWELL engineering case for the LWCA-120380SN-07-00 cross flow fan s...

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Backward-curved centrifugal fan with a metal impeller
By longwell / May 18, 2026 / Engineering Case Studies

LONGWELL ADH 900-K Double-Inlet Centrifugal Fan Assembly Drawing Specification

Technical assembly specification for the LONGWELL ADH 900-K double-inl...

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Centrifugal fan mounted on a rectangular support frame
By longwell / May 18, 2026 / Engineering Case Studies

24V DC Centrifugal Fan Specification: LWBD3G190-072PM-01-00

LONGWELL engineering specification and drawing output for 24V DC backw...

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Circular inline duct fan with a white cylindrical housing
By longwell / May 16, 2026 / Engineering Case Studies

LONGWELL 4-Inch EC Inline Duct Fan Model LWDE-100 Specification

Technical specification and dimensional drawing output for LONGWELL LW...

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Illustration of open-frame, cylindrical and compact external-rotor fan motor configurations
By longwell / May 16, 2026 / Engineering Case Studies

60Hz AC Fan Motor Technical Specification: LWYSK100-4P-002

LONGWELL engineering developed the LWYSK100-4P-002 AC fan motor drawin...

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Illustration of a rectangular air-handling unit with two circular discharge openings
By longwell / May 15, 2026 / Engineering Case Studies

Custom 20-Ton Jet Air Handling Unit Specification: LONGWELL LWHFD-150S

Engineering specification summary for LONGWELL model LWHFD-150S, a cus...

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Illustration of a rotary fan control, mechanical air-pressure switch and ignition electrode type
By longwell / May 15, 2026 / Engineering Case Studies

Speed Controller Specification for LONGWELL LWSC-DC-005 Fan Speed Control

Engineering specification and drawing outputs for the LONGWELL LWSC-DC...

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Cross-flow fan assembly with a metal tangential impeller and end-mounted motor
By longwell / May 15, 2026 / Engineering Case Studies

LONGWELL LWCD-30190MN-07 DC Cross Flow Fan CAD Dimensional Evaluation

Dimensional fit evaluation and CAD drawing output for the LONGWELL LWC...

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Axial fan with a circular wire guard and metal blades
By longwell / May 15, 2026 / Engineering Case Studies

LONGWELL LWA-φ385×115-5 Axial Fan Impeller Technical Drawing

LONGWELL developed the LWA-φ385x115-5 axial fan impeller drawing featu...

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Metal cross-flow fan impeller
By longwell / May 14, 2026 / Engineering Case Studies

Cross Flow Fan Impeller and Housing Assembly for HVAC OEM (LW-50610-01)

LONGWELL engineering configured the LW-50610-01 motorless cross flow f...

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