Backward Curved Centrifugal Fan Manufacturer — EC, AC & DC
YUYAO, CHINA · OEM / ODM · MANUFACTURER & SUPPLIER
Use this production catalog to compare LONGWELL backward-curved centrifugal fans for AHU, CRAH, refrigeration and industrial OEM equipment. EC, AC and DC families remain visible so the motor platform can be chosen against the same airflow, pressure and installation brief.
For a matched proposal, send: airflow, static pressure, voltage and frequency, control interface, installation envelope, ambient conditions, destination and quantity.
- 1M+ company-wide annual capacity
- ISO 9001 · 14001 · 45001 systems
- Model-specific compliance documents
- Curves and drawings by model
Maximum airflow and maximum static pressure are endpoint values, not one operating point. Final selection and certification scope must be confirmed for the exact model and destination.
Browse by size
Browse by series
AllLWBE3G25021LWBE3G31017LWBE3G28015LWBE3G22512LWBE3G35512LWBE3G45012LWBA4E31511LWBE3G17510LWBE3G1909LWBA4E3558LWBE3G2208LWBA2E2507LWBE3G4007LWBA2E2256LWBA4D3556LWBA2D2255LWBA2D2505LWBA2D2805LWBA2E1755LWBA2E2205LWBA4D4005LWBA4D4505LWBD3G3105LWBE3G1335LWBE3G5005LWBE3G5605LWBA4D2504LWBA4D3154LWBA4E1904LWBA4E2504LWBA4E4004LWBD3G1904LWBA2E1803LWBA2E1903LWBA2E2803LWBA4D5003LWBA4D5603LWBA4E2203LWBD3G1753LWBD3G2253
| Model | Size | Max airflowm³/h | Max static pressurePa | PowerW | NoisedB(A) | Speedrpm | VoltageV | ||
|---|---|---|---|---|---|---|---|---|---|
 |
LWBE3G355-188NT-26EC | Ø355 mm | 8,034 | 1,545 | 3,090 | 96 | 3,200 | 400 | Details |
 |
LWBE3G355-188NT-29EC | Ø355 mm | 6,756 | 2,523.5 | 3,100 | 96 | 3,800 | 380 | Details |
 |
LWBE3G400-102NS-02EC | Ø400 mm | 3,914 | 556.2 | 330 | 70 | 1,430 | 230 | Details |
 |
LWBE3G400-102NS-11EC | Ø400 mm | 6,489 | 978.5 | 700 | 85 | 1,800 | 230 | Details |
 |
LWBE3G400-102NS-14EC | Ø400 mm | 4,463 | 420 | 297 | 62 | 1,250 | 230 | Details |
 |
LWBE3G400-102NS-15EC | Ø400 mm | 5,476 | 600 | 500 | 68 | 1,520 | 230 | Details |
 |
LWBE3G400-102NS-16EC | Ø400 mm | 3,554 | 546 | 300 | 76 | 1,460 | 230 | Details |
 |
LWBE3G400-138NT-12EC | Ø400 mm | 7,459 | 840 | 1,480 | 71 | 1,100 | 400 | Details |
 |
LWBE3G400-188NT-17EC | Ø400 mm | 9,682 | 1,627 | 2,060 | 84 | 2,650 | 400 | Details |
 |
LWBE3G450-102NS-19EC | Ø450 mm | 7,467.5 | 1,030 | 700 | 80 | 1,450 | 230 | Details |
 |
LWBE3G450-102NS-21EC | Ø450 mm | 5,050 | 417 | 320 | 68 | 1,400 | 230 | Details |
 |
LWBE3G450-102NT-20EC | Ø450 mm | 8,652 | 1,390.5 | 1,100 | 93 | 1,500 | 380 | Details |
 |
LWBE3G450-138NT-08EC | Ø450 mm | 7,828 | 824 | 910 | 75 | 1,720 | 400 | Details |
 |
LWBE3G450-138NT-11EC | Ø450 mm | 5,329 | 452 | 386 | 73 | 1,200 | 400 | Details |
 |
LWBE3G450-138NT-12EC | Ø450 mm | 7,182 | 730 | 900 | 72 | 1,610 | 400 | Details |
 |
LWBE3G450-188NT-14EC | Ø450 mm | 8,985 | 840 | 2,400 | 70 | 2,600 | 400 | Details |
 |
LWBE3G450-188NT-15EC | Ø450 mm | 7,425 | 1,568 | 1,590 | 70 | 2,400 | 400 | Details |
 |
LWBE3G450-188NT-16EC | Ø450 mm | 8,019 | 1,802 | 2,060 | 74 | 2,600 | 400 | Details |
 |
LWBE3G450-188NT-17EC | Ø450 mm | 8,661 | 2,114 | 2,595 | 85 | 2,800 | 400 | Details |
 |
LWBE3G450-188NT-21EC | Ø450 mm | 12,647 | 2,342 | 4,600 | 96 | 2,800 | 380 | Details |
 |
LWBE3G450-188NT-22EC | Ø450 mm | 10,752 | 1,669 | 2,400 | 92 | 2,400 | 380 | Details |
 |
LWBE3G500-138NT-13EC | Ø500 mm | 8,137 | 464 | 870 | 71 | 1,100 | 400 | Details |
 |
LWBE3G500-188NT-08EC | Ø500 mm | 14,214 | 886 | 3,000 | 89 | 1,800 | 400 | Details |
 |
LWBE3G500-188NT-09EC | Ø500 mm | 12,243 | 1,265 | 3,160 | 78 | 2,000 | 400 | Details |
 |
LWBE3G500-188NT-10EC | Ø500 mm | 13,472 | 1,541 | 4,200 | 66 | 2,200 | 400 | Details |
 |
LWBE3G500-188NT-14EC | Ø500 mm | 10,305 | 903 | 1,900 | 72 | 1,705 | 400 | Details |
 |
LWBE3G560-188NT-01EC | Ø560 mm | 16,039 | 1,166 | 3,300 | 63 | 1,610 | 400 | Details |
 |
LWBE3G560-188NT-09EC | Ø560 mm | 16,480 | 886 | 2,770 | 81 | 1,520 | 400 | Details |
 |
LWBE3G560-188NT-10EC | Ø560 mm | 14,879 | 1,013 | 2,420 | 85 | 1,500 | 400 | Details |
 |
LWBE3G560-188NT-14EC | Ø560 mm | 19,760 | 1,545 | 4,700 | 91 | 1,850 | 380 | Details |
 |
LWBE3G560-218NT-13EC | Ø560 mm | 23,896 | 1,442 | 5,600 | 85 | 1,800 | 400 | Details |
 |
LWBE3G630-188NT-06EC | Ø630 mm | 19,247 | 887 | 2,195 | 66 | 1,300 | 400 | Details |
 |
LWBE3G630-188NT-07EC | Ø630 mm | 21,100 | 1,071 | 2,955 | 85 | 1,380 | 400 | Details |
 |
LWBE3G630-188NT-09EC | Ø630 mm | 21,742 | 1,677 | 5,600 | 75 | 1,780 | 400 | Details |