High Temperature Fan Manufacturer and Industrial Thermal Process Fans
Designed for continuous operation in extreme thermal environments, our high temperature fans convey hot air, flue gas, and process vapors at temperatures ranging from +150 deg C to +1,000 deg C. Each unit integrates high-temp alloy impellers, thermal expansion housings, and specialized shaft cooling discs or water-cooled bearing pedestals to prevent heat conduction into drive components. Available in centrifugal, axial, and duct-insertion designs compliant with AMCA 210 and ISO 5801 performance standards.
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![Mixed-flow High-temperature Exhaust Fan]()
Mixed-flow High-temperature Exhaust FanIn the high-temperature exhaust systems of industrial kilns, the hot air extraction of drying equipment, and the high-temperature gas discharge of chemical processes, operating conditions often require both certain pressure to overcome...view more -
![High-temperature Ducted Axial Fan]()
High-temperature Ducted Axial FanIn the exhaust systems of industrial furnaces, the hot air conveyance pipelines of drying equipment, and the high-temperature gas ducts of chemical processes, fans are often required to be directly connected in series in the duct to...view more -
![High-temperature Axial Flow Ventilator]()
High-temperature Axial Flow VentilatorIn the baking workshops of food factories, the drying sections of coating production lines, and the aging rooms of wood processing plants, what is needed is not only to extract high-temperature air but also to maintain a certain airflow...view more -
![Industrial Mixed-flow High-temperature Fan]()
Industrial Mixed-flow High-temperature FanIn hot air circulation for heat treatment furnaces, hot air conveyance for drying lines, and gas turbine inlet air preheating systems, operating conditions often fall between pure axial and pure centrifugal — temperatures of 200–400°C,...view more -
![Industrial Heat-resistant Centrifugal Fan]()
Industrial Heat-resistant Centrifugal FanSome industrial processes are not intermittently high-temperature but continuously convey high-temperature gas 24/7, 365 days a year — such as kiln tail induced draft fans in cement plants and boiler induced draft fans in power plants....view more -
![High-temperature Axial Flow Fan]()
High-temperature Axial Flow FanOn the air-cooled islands of large thermal power plants, beside annular coolers in metallurgical enterprises, atop cooling towers in chemical plants — what is needed is not high-pressure gas conveyance but pushing large volumes of...view more -
![Industrial High-temperature Centrifugal Fan]()
Industrial High-temperature Centrifugal FanIn industrial processes such as cement rotary kilns, metallurgical blast furnaces, and chemical cracking furnaces, fans need to convey not room-temperature air but high-temperature gases of 250°C or even 500°C+. Ordinary fans at such...view more -
![Centrifugal High Temperature Fan]()
Centrifugal High Temperature FanThe Centrifugal high temperature fan is engineered as a heavy-duty centrifugal machine specifically for conveying hot gases ranging from 250°C to over 500°C. It effectively addresses critical challenges such as material strength...view more -
![Axial Flow High Temperature Fan]()
Axial Flow High Temperature FanThe Axial flow high temperature fan is expertly engineered for high-volume gas movement along the axis in demanding thermal environments. Its hallmark is a compact, direct-flow design that delivers superior efficiency, making it the...view more -
![High Temp Duct Fan]()
High Temp Duct FanThe High Temp Duct Fan (Mixed-Flow) is an excellent choice for moving process air in medium-temperature, medium-resistance systems. It effectively bridges the gap between purely axial and purely centrifugal designs, making it highly...view more -
![Mixed-flow High-temperature Fan]()
Mixed-flow High-temperature FanThe Mixed-Flow High-Temperature Fan (Angled Discharge) is a specialized mixed-flow fan featuring a discharge outlet angled at 45° or 60° from the axis. This innovative design allows for exceptionally compact integration directly into...view more -
![Volute High-pressure High-temperature Fan]()
Volute High-pressure High-temperature FanThe Volute High-Pressure High-Temperature Fan is engineered as a robust workhorse capable of withstanding the dual challenges of extreme pressure (total pressure >15 kPa) and intense heat (>300°C). This rugged centrifugal fan is the...view more
Fan Selection and Configuration Guide
|
Fan Type |
Max. Operating Temperature |
Airflow Range |
Pressure Range |
Primary Industrial Application |
|
Centrifugal High Temp Fan |
Up to +800 °C |
1,500 - 350,000 m3/h |
500 - 15,000 Pa |
Industrial kiln hot air recirculation, boiler induced draft, and flue gas exhaust |
|
Axial Flow High Temp Fan |
Up to +500 °C |
3,000 - 180,000 m3/h |
100 - 800 Pa |
High-volume thermal circulation in baking ovens, drying tunnels, and aging rooms |
|
Mixed-Flow High Temp Fan |
Up to +400 °C |
2,500 - 90,000 m3/h |
300 - 2,500 Pa |
In-line ducted process ventilation where space constraints prevent 90-degree centrifugal duct turns |
|
Insertion / Plug High Temp Fan |
Up to +1,000 °C |
1,000 - 60,000 m3/h |
200 - 3,500 Pa |
Direct mounting into furnace walls or insulated oven plenums without external casing heat losses |
Materials and High-Temp Construction Options
Impeller and Shaft Materials
Grade 304 stainless steel (up to 400 deg C), Grade 316L (up to 500 deg C), Grade 310S / 2520 high-nickel alloy (up to 900 deg C), and Inconel 625 or Hastelloy C-276 for continuous operating zones exceeding 900 deg C or aggressive chemical combustion environments.
Thermal Isolation and Cooling Options
Cast aluminum heat-dissipating cooling discs mounted on the drive shaft, forced-air cooling jackets, or water-cooled bearing housings for severe continuous thermal loads.
Insulated Fan Housings
Double-wall insulated casings pre-filled with high-density ceramic fiber insulation (50 mm to 150 mm thickness) to minimize skin temperature and radiant heat loss.
High-Temperature Shaft Seals
Multi-layer stuffed PTFE, ceramic fiber gland packing, labyrinth mechanical seals, or purge-gas pressurized shaft seals to prevent flue gas leakage.
Technical Specifications and Performance Limits
|
Parameter |
Technical Specifications |
|
Impeller Diameter |
280 mm to 2,200 mm |
|
Drive Arrangements |
Arrangement 1: Overhung impeller, belt drive; Arrangement 4: Direct drive with insulated shaft extension; Arrangement 8: Direct drive via flexible coupling on structural pedestal; Arrangement 9: Belt drive with motor mounted on bearing frame |
|
Motor Protection & Efficiency |
TEFC enclosure; Class H insulation; IP55 / IP65 protection; standard IE3 / IE4 motors mounted outside the airstream; VFD-compatible winding protection |
|
Bearings & Lubrication |
Heavy-duty pillow block bearings, SKF or NSK; high-temperature synthetic grease or oil-bath lubrication with internal cooling coils |
|
Bearing Life |
L10 >= 40,000 hours |
|
Dynamic Balancing |
Two-plane dynamic balancing at operating speed; ISO 1940 Grade G2.5 |
|
Vibration Limit |
RMS vibration velocity <= 1.8 mm/s at bearing housings under full thermal equilibrium, according to ISO 10816-3 Category I/II guidelines |
|
Thermal & Structural Design |
Structural expansion joints integrated to minimize housing distortion during thermal expansion |
Applications by Industry
Heat Treatment and Metallurgical Processing
Recirculating protective atmosphere gases inside annealing furnaces, tempering ovens, and aluminum homogenizing furnaces.
Ceramics, Glass and Brick Kilns
Kiln tail induced draft exhaust, waste heat recovery conveyance, and rapid cooling zone air injection.
Industrial Drying and Food Processing
Continuous hot air delivery in conveyor dryers, spray drying towers, and rotary drum dryers.
Chemical and Waste Incineration
Extracting hot corrosive flue gases and volatile organic compound (VOC) thermal oxidizer exhaust.
Custom Fan Engineering and Retrofit Capabilities
Cold-Start Damper and VFD Interlocks
Integration of automated inlet dampers or VFD speed controls to prevent motor overload during initial ambient cold starts.
Thermal Stress and Creep Analysis
Finite Element Analysis (FEA) performed on high-temp impellers to verify yield strength and creep deflection under maximum centrifugal force at peak temperatures.
Custom Flange and Mounting Footprints
Matching existing duct connection flanges and structural steel foundations during plant retrofits and fan replacements.
Manufacturing Precision and Quality Assurance
CNC Laser Cutting and Structural Welding
Housing plates and impeller blades precision-cut within +/-0.05 mm. AWS D1.1 and EN 287-1 certified welders execute full-penetration welds on high-alloy assemblies.
Non-Destructive Testing (NDT)
100% dye penetrant testing (PT) on all high-stress impeller welds. Ultrasonic testing (UT) or X-ray inspection applied to critical shaft and hub joints upon request.
High-Speed Dynamic Balancing
Impellers undergo dynamic balancing on computerized balancing machines, compensating for keyways and shaft lock-assemblies according to ISO 1940 G2.5 guidelines.
Factory Acceptance Testing (FAT)
Every fan completes a 60-minute continuous run test checking vibration spectra, bearing temperature rise, motor current draw, and shaft alignment before shipment.
Export Packaging and Project Documentation
Ocean Cargo Packaging
Heavy-duty ISPM-15 compliant fumigated wooden crates or steel skid frames. Critical shaft ends, bearing housings, and machined flange faces treated with anti-corrosion grease and sealed in waterproof vapor-barrier film.
Engineering Documentation Package
Every shipment includes General Arrangement (GA) 2D/3D CAD drawings, material test reports (MTR to EN 10204 3.1), dynamic balance certificates, FAT inspection reports, and maintenance instructions.
FAQ
Request a Fan Selection and Engineering Quotation
Need an engineering review, CAD model, or custom quotation for your ventilation project? Provide your operating requirements to our engineering sales office:
E-mail: nyfji@126.com
Direct Phone / WhatsApp: +86 186 6290 3785
Factory Address: North End of Jiuwei Port Bridge, Nantong City, Jiangsu Province, China
Included with Quotation: Airflow Performance Curves, Dimensioned CAD Drawings, Motor Data Sheets, and Itemized FOB/CIF Commercial Terms within 24 hours.
As one of the leading high temperature fan manufacturers and suppliers in China, we also support customized service with low price. Please feel free to buy discount high temperature fan made in China here from our factory. For quotation, contact us now.
Axial Flow High Temperature Fan, Centrifugal High Temperature Fan, Mixed flow High temperature Fan
