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We’re talking about teh S4-72-11 here, a centrifugal ventilator for HVAC and industrial use—basically handles demanding airflow against resistnce better than axial fans do, with total pressure running from 150 to 3000 Pa and air volume spanning 900 to 100,000 m³/h depending on the build.
motor power range is pretty broad, 1.1 to 350 kW, and speed options go from 960 up to 2900 rpm, which matters because you’re matching it to your ductwork resistance—higher pressure systems usually need the faster end, but it’s not always that simple. It’s high-efficieny design (not just a label) with low noise operation, though noise really depends on the drive type and material; direct drive tends to run quieter than belt drive in most cases.
For materials, you’ve got FRP, steel, stainless steel, aluminum, or PP/PVC—the FRP is actually better than standard steel for corrosive chemical exhaust in labs or mining because of that it doesn’t pit, but don’t use it in high-temperature processes above about 80°C or so. Stainless steel is the go-to for food-grade or pharma HVAC where contamination control matters.
appliction include HVAC for civil buildings, industrial process ventilation, and mining—one thing though, it’s not ideal for high-particulate dust loading unless you add a pre-filter or go with a radial blade design, which wears slower. The back-curved blade option gives tighter tolerance on flow control, typically used in clean rooms where pressure stability is crucial.
Certifications are ISO and CE (standard for most orders), and we usually stock common voltge ranges from 110V to 650V—but check lead time for non-standard options like 400V three-phase with a specific coupling, because that’s a custom wind job. We typically have stock, but confirm lead time on large volumes (50 units or so) since shift seasonally.
Ordering is straightforward—you specify drive type (direct, belt, or coupling), motor power, and material, and we’ll quote MOQ base on the casing size. Speed and noise data are on the COA with HPLC-grade documentation for the balance testing if you need it.
We don't have a strict MOQ for this model — we can handle single units for testing or small projects, but larger orders usually get better pricing. Just let us know your quantity when you reach out.
Yes, absolutely. The S4-72-11 is built to ISO and CE standards, and we include the relevant certification documents with each order. Just specify which certificates you need when you place the order.
Lead time depends on the configuration and volume, but for a standard belt-drive stainless steel unit, we usually ship within 15-25 working days. Custom specs or large quantities may take a bit longer.
Yes, the FRP (fiberglass-reinforced plastic) version is specifically designed for highly corrosive air streams — it's a great choice for chemical plants or wastewater treatment. We also offer PP/PVC if you need extra chemical resistance.
We pack each unit in a sturdy wooden crate with internal bracing to prevent movement during transit. For long-term storage, keep it in a dry, covered area — the steel versions have a protective coating, but we recommend avoiding direct exposure to moisture.
