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Phone: +86-534-5012407
Mobile phone: +86-188-6602-0062
Email: sddljnhb@163.com
Website: http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
Our company’s stainless steel duct‑type axial fans are versatile industrial ventilation units featuring a cylindrical direct‑drive design, with airflow moving axially along the fan shaft. They are widely used in applications such as factory ventilation and air exchange, ducted air supply, kitchen smoke extraction, exhaust gas treatment, and environmental cooling.
Our company manufactures duct‑mounted mixed‑flow fans—also known as cross‑flow fans—which are ventilation devices that fall between axial and centrifugal fans. The airflow passes through the impeller at an inclined angle, combining the high airflow volume of axial fans with the high static pressure of centrifugal fans. These fans are widely used in ducted air supply, fire‑smoke extraction, fresh‑air ventilation, and industrial ventilation applications.
Our company manufactures duct‑type mixed‑flow fans—also known as diagonal‑flow fans—which are high‑efficiency ventilation devices positioned between axial and centrifugal fans. The airflow passes through the impeller at an inclined angle, combining the large air volume of axial fans with the high static pressure of centrifugal fans. These fans are widely used in applications such as building smoke extraction, fresh‑air ventilation, and industrial ductwork supply.
Our company manufactures wall‑mounted axial fans—also known as wall‑type axial fans or wall‑mounted exhaust fans—which are axial ventilation units designed for direct installation on exterior walls or masonry. They come equipped with a rain‑proof elbow, louvers, and a protective grille, eliminating the need for additional ductwork and enabling direct exhaust to the outdoors. These fans are widely used for ventilation and air exchange in factories, warehouses, basements, equipment rooms, and other similar spaces.
This Product is a non-powered turbine-type rooftop natural ventilator (commonly known as a stainless steel wind ball / non-powered vent cap). It relies on the dual driving forces of natural wind and thermal convection caused by indoor-outdoor temperature differences to rotate the turbine. By leveraging the centrifugal negative-pressure effect, it continuously extracts high-temperature exhaust gases, moisture, and odorous gases from workshops and buildings, all without electricity, zero energy consumption, and no operational noise.
Our company’s jet fans (tunnel jet fans) are a specialized type of axial-flow fan, primarily used in longitudinal ventilation systems for highways, railways, subway tunnels, and similar underground structures. They are currently among the most widely deployed pieces of equipment in tunnel ventilation.
Our company manufactures belt-driven industrial centrifugal fans, which are core equipment in medium- and low-pressure ventilation, dust removal, and exhaust gas treatment systems. These fans rely on the rotation of a centrifugal impeller to generate centrifugal force, enabling air conveyance, and are widely used in industrial plant ventilation, dust collection and purification, boiler draft, material handling, and exhaust gas treatment applications.
This stainless steel centrifugal fan is a corrosion‑resistant centrifugal ventilation unit. The entire housing is fabricated from stainless steel sheet, and it generates airflow pressure through the high‑speed rotation of a centrifugal impeller, enabling gas conveyance and exhaust ventilation. Unlike conventional carbon‑steel fans, it offers superior resistance to corrosion, acids and alkalis, rust, and high temperatures, making it suitable for handling corrosive exhaust gases, high‑temperature steam, and clean air. It can be equipped with either explosion‑proof or standard national‑standard motors, features adjustable airflow and static pressure, operates smoothly with minimal vibration, and is widely used in environmental protection exhaust systems, as well as in chemical, food processing, and coating industries—where corrosion resistance is required—for ventilation, dust removal, exhaust gas extraction, and material conveying applications.
The louver‑type ventilation fan (wall‑mounted louver exhaust fan) is a square, axial‑flow ventilation device featuring an ABS flame‑retardant plastic housing and an automatic opening‑and‑closing louver mechanism. When powered on, the louvers automatically open to exhaust air; when power is off, they close under gravity, effectively preventing outdoor insects, rain, and cold drafts from entering. By rotating its axial‑flow impeller, the fan creates negative pressure, swiftly removing moisture, odors, cooking fumes, and stale air. It offers quiet operation, energy efficiency, dust and rain protection, easy installation, and automatic wind‑blocking functionality. Available in a 220V single‑phase household version and a high‑power industrial model, it is widely used for ventilation in kitchens, bathrooms, small shops, warehouses, and other spaces.
Window-mounted ventilation fan
Window‑style ventilation fan (square window exhaust fan), specially designed for installation in glass windows and square wall openings. It is an axial‑flow, direct‑exhaust ventilation device featuring an integrated ABS flame‑retardant plastic construction with a circular front air guide and a square outer frame. When powered on, the fan blades rotate to expel stale, polluted air. A built‑in spring‑loaded, self‑opening wind‑deflecting louver ensures that the louvers automatically open upon startup and close when the unit stops, effectively preventing insects, rain, and drafts from entering. The entire unit is equipped with a fully enclosed, moisture‑proof motor, offering quiet operation, energy efficiency, and easy installation—simply fit it into a pre‑drilled window opening or a pre‑cut square recess in the wall. Ideal for kitchens, bathrooms, small apartments, and retail spaces where basic ventilation is needed, it quickly removes humidity, odors, cooking fumes, and stuffy air.
Mobile phone:+86-188-6602-0062
Email:sddljnhb@163.com
Website:http://www.sddljnhb.com
Address: No. 5166, Tianqu East Road, Economic Development Zone, Dezhou City, Shandong Province
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