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Filter LONGWELL Metal Inline Fans models by airflow, static pressure, voltage or size. Every model on the Fan Selector lists its measured or digitised curve, dimensional drawing and datasheet.
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Have your duty point?

See every LONGWELL model whose P-Q curve covers it — margins, noise and power included. No login.

Library: Ø25–1,000 mm, single units up to about 52,000 m³/h — larger duties go straight to an engineer. Prefer to talk it through? Send your specs to an engineer

Buying from LONGWELL

  • Brand owner since 1990
  • Yuyao, Ningbo
  • 12-month standard warranty, extendable to 18–24 months by project agreement
  • Reply within 1 business day

Certificates you can check

Product certificates cover only the models listed on each document — ask which ones apply to your model. ISO certificates cover management systems, not products. Declaration of Conformity for your model and destination on request.

All document scans and what each covers

Test & release at LONGWELL

Specified and drawn by LONGWELL, built to our drawings by qualified partner factories, inspected and released to LONGWELL standards.

  • Wind tunnel · AMCA 210 method
  • Semi-anechoic room · sound power testing
  • Outgoing sampling to AQL 2.5
  • Test records retained for 5 years

How ordering works

  1. Spec check duty point & drawings
  2. Samples 1–3 days (stock models), fee credited to first order
  3. Validation on your bench
  4. Order T/T 30/70 (first order)
  5. Production & release 15–30 days, partner factory
  6. Shipping & after-sales FOB · CIF · DDP
Full terms, QC and FAQ
Current book for Metal Inline Fans

Metal Inline Fans

LONGWELL specializes in high-performance metal inline fans, designed to provide efficient airflow and ventilation in various industrial and commercial settings. Our metal inline fans are crafted with durable materials, ensuring they withstand harsh environments while delivering reliable and powerful air circulation. Their compact design allows for easy installation in tight spaces, making them an ideal choice for complex ventilation systems.

Engineered for both performance and longevity, LONGWELL’s metal inline fans ensure optimal air movement, helping to regulate temperature and expel contaminants. With a commitment to quality and innovation, LONGWELL delivers ventilation solutions that enhance safety and comfort in any environment.
Longwell Metal Inline Fans are built with robust steel or aluminum housings for superior strength and durability. They provide powerful ventilation for demanding industrial or commercial environments.
Featuring efficient impellers and corrosion-resistant coatings, Longwell inline fans deliver stable airflow and long-term reliability even under continuous operation.