Industrial Stirring Circulation Fan with Cast Iron Fan Base for Tempering Annealing Furnace

The furnace hot air circulation fan is a special high-temperature resistant stirring device matched with industrial heat treatment furnaces, also known as furnace circulation fan, oven stirring fan. It consists of high-temperature motor, fan base, lengthened stainless steel drive shaft and stainless steel stirring impeller. Installed on the wall of mesh belt furnace, box furnace, tempering furnace and aging furnace, it circulates hot air inside the furnace to balance temperature distribution.

1. Uniform furnace temperature The high-speed rotating impeller pushes hot air to flow circularly, eliminates local hot or cold zones inside the furnace, ensures consistent heating effect for all workpieces.

2. Improve heat treatment quality Avoid uneven hardness, oxidation and color difference of screws, auto parts, hardware after tempering, annealing and carbonitriding.

3. High temperature resistance & long service life Special high-temperature insulated motor and heat isolation fan base block furnace radiant heat, prevent motor burnout under long-term high-temperature working environment.

4. Stable & low-noise operation Precise coaxial matching of shaft, base and impeller reduces vibration, stable operation for 24-hour continuous production line.

5. Easy installation & maintenance Standard flange fan base, quick disassembly to replace impeller, shaft sleeve and sealing parts without cutting the furnace.

1. High temperature resistant motor: Special vertical motor with heat insulation coating, withstand long-term ambient temperature below 120℃ outside the furnace.

2. Cast iron fan base: Grey cast iron / ductile iron / stainless steel composite optional, heat insulation interlayer design to isolate furnace high temperature.

3. Stainless steel drive shaft: 304 / 316 stainless steel lengthened shaft, customized length according to furnace wall thickness, wear-resistant & anti-oxidation.

4. Stainless steel stirring impeller: Multi-blade fan wheel with high air volume, integral casting or welding molding, high temperature resistant without deformation.

5. High temperature sealing assembly: Graphite packing and heat-resistant oil seal prevent hot gas leakage from furnace.

1. Grey cast iron fan base: Matches furnaces below 800℃, cost-effective for mass production.

2. Thickened ductile iron fan base: Suitable for 700~950℃ continuous high temperature furnaces, anti-thermal deformation.

3. Stainless steel composite fan base: For carburizing, nitriding atmosphere furnaces, anti-corrosion & anti-rust.

4. Impeller & drive shaft: 304 stainless steel for conventional furnaces; 316 stainless steel for corrosive atmosphere furnaces.

Perfectly supporting all kinds of industrial heat treatment equipment: Mesh belt furnace, box vacuum furnace, tempering furnace, annealing furnace, aging oven, curing furnace, carbonitriding furnace, fastener production heat treatment line, automotive parts processing furnace.

1. Integral heat insulation structure, effectively protect motor from high temperature damage

2. Precise coaxial structure, low vibration, low noise, stable 24h operation

3. Large air volume stainless steel impeller, realize full uniform temperature inside furnace

4. Three optional base materials, adapt to different temperature and atmosphere furnaces

5. Standard flange installation, easy disassembly and daily maintenance

6. Custom shaft length, impeller size, power to match your furnace