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Buyer guide
Blower Selection and Sourcing Guides
Written for the engineer who has to pick a blower and the buyer who has to qualify the factory that makes it. The checklists are the ones we use ourselves when a drawing lands on the desk.
How to specify a centrifugal blower
The duty point, voltage, control mode, envelope, noise, IP, life and volume — with a copy-ready checklist and how to read a P-Q curve.
Read the pageTypes of blower impeller
Forward-curved, backward-curved and radial wheels compared: blade form, width, material and balancing grade, and what each does to the curve.
Read the pageWhat drives the cost of an OEM blower
No prices. What actually moves a quotation: wheel size and material, motor type, tooling, volume, certification scope and freight.
Read the pageAuditing a blower supplier in China
The documents to demand, how to verify a certificate number, what to look at on the floor, and the questions that expose a trading company.
Read the pageReady to skip ahead? Send what you have through the quote form.
Send the duty point, get the model
Airflow, static pressure, voltage and control mode are enough to start — a drawing is better. An engineer answers, usually within one working day (GMT+8). Samples of catalogue models ship in 1–3 days.