On May 13, 2026, LONGWELL opened a project to address a requirement for white coated ventilation cowls. The initial customer request specified three quantity batches based on size: 300 units for size 100, 400 units for size 150, and 150 units for size 200.

Engineering Specification and Part Models
LONGWELL engineering evaluated the requirements and assigned designated part numbers for the series: LW-WC100-45-01, LW-WC150-50-01, and LW-WC200-60-01. Technical specifications and standardized drawings were prepared on May 20, 2026, establishing structural parameters for fit evaluation.

Custom Ventilation Solutions
If your project requires custom ventilation cowls, special surface coatings, or accessories tailored to your ducting layout, submit your design parameters, duct dimensions, and material requirements to LONGWELL Contact or explore fan options at the LONGWELL Fan Selector.











