On August 17, 2026, LONGWELL opened a project to prepare technical specifications for an AC cross flow fan unit under model designation LWCA-120390SN-07-00. The customer requested a dual-speed configuration operating at 1100 r/min and 1300 r/min, tailored to specific mounting dimensions.
Technical Parameters & Mechanical Design
Engineering documentation established the detailed baseline for the 120mm cross flow fan assembly. The dimensional drawing defines an overall housing length of 510 ± 2 mm, a mounting span of 410 ± 1.5 mm, and an internal impeller section length of 390 ± 1 mm. The housing profile measures 160 mm in height and 160 mm in depth.
| Parameter / Feature | Documented Value / Specification |
|---|---|
| Model Designation | LWCA-120390SN-07-00 |
| Rated Voltage / Frequency | 220 V / 50 Hz |
| Dual-Speed Operation | 1300 / 1100 r/min |
| Impeller Diameter & Blade Count | Ø120 mm, 48 blades |
| Shaft & Sleeve Diameter | Steel shaft Ø8 mm, spindle sleeve Ø8 mm |
| Impeller Material | Aluminum (Al) |
| Side Plates & Air Outlet/Inlet Plates | SGCC Steel |
| Lead Wire Length | L = 500 mm |
Engineering Output
LONGWELL engineering finalized and released the specification drawing LWCA-120390SN-07-00 on August 18, 2026. Technical reviewer sign-off occurred on August 18, 2026, establishing the official model dimensions and component baseline for fit evaluation.
Request baseline technical specifications for your application
If your project requires customized AC cross flow fans with specific impeller lengths, dual-speed drive options, or tailored mounting dimensions, share your dimensional constraints and target operating parameters with our engineering team.
Please submit your target operating point, voltage, dimensional envelope, and wiring requirements through our Contact Form or select components directly using the LONGWELL Fan Selector Tool.
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