On May 12, 2026, LONGWELL opened a project to enhance airflow performance while maintaining envelope dimensions for 50 mm impeller diameter DC cross flow fans, based on requirements for baseline models LWCD-50290MN-07 and LWCD-50350MN-07. LONGWELL engineering evaluated the operating specifications and completed updated technical drawings on May 15, 2026, designated under part numbers LWCD-50290MN-10-00 and LWCD-50350MN-08-00.
Engineering Specification and Design Output
The revised engineering specifications establish the target physical dimensions and electrical operating parameters for both custom DC cross flow fan configurations.
| Specification Label | LWCD-50290MN-10-00 | LWCD-50350MN-08-00 |
|---|---|---|
| Voltage (VDC) | 24 | 24 |
| Current (A) | 0.6±10% | 0.6±10% |
| Speed (r/min) | 2600±10% | 2400±10% |
| Air Volume (m³/h) | ≥220 | ≥240 |
| Bearings | Ball bearing | Ball bearing |
| Total Length (mm) | 336±3 | 404±3 |
| Mounting Hole Distance (mm) | 310±1.5 | 378±1.5 |
| Air Outlet Length (mm) | 290±1 | 358±1 |
| Lead Wire Length (mm) | 500 | 500 |
Both fan units specify a 70 mm frame profile, 0-10V speed control capability, and ball bearing assemblies to support extended operational reliability. The engineering output provides verified dimensional and electrical parameters for fit evaluation.
Request Specifications for Custom Fan Projects
If you require custom airflow modifications, dimensional matching, or control interface configurations for DC cross flow fans, submit your specific application details to the LONGWELL engineering team. Please supply your required voltage, airflow target, mounting constraints, and duty point via our contact page or explore standard models using the LONGWELL Fan Selector.
Choose the right dc cross flow fan
Longwell manufactures 50 dc cross flow fans in-house. Send airflow, static pressure and voltage — an engineer replies with a matching model, performance curve and price within one working day.
