Fan Motors and Cooling Fans for Ovens, Microwaves and Small Appliances
Ovens, microwave ovens, toaster ovens, air fryers and food dehydrators all use small fans in two ways. Process fans move hot air around the food for even cooking, as in convection ovens, air fryers and dehydrators. Cooling fans keep electronics, magnetrons, controls and outer surfaces cool. Both run close to heat, so the motor must be chosen for the temperature it actually sees.
LONGWELL manufactures shaded-pole fan motors, cross-flow cooling fans and fan assemblies for kitchen-appliance manufacturers.
Fan jobs in kitchen appliances
| Appliance | Fan job | Typical solution |
|---|---|---|
| Microwave oven | Cool the magnetron and electronics | Shaded-pole motor with axial blade |
| Convection / toaster oven | Circulate hot air in the cavity; cool the outer casing and controls | Shaded-pole motor with impeller (cavity); cross-flow fan (casing / door cooling) |
| Air fryer | High-speed hot-air circulation; motor cooling | Shaded-pole or DC motor with dual impeller |
| Food dehydrator | Gentle airflow across trays | Shaded-pole motor with axial blade, or compact axial fan |
| Built-in oven | Tangential cooling air along the front and controls | Cross-flow (tangential) fan |
What to specify
- Ambient temperature at the motor: the most important figure. Cavity-side motors see far more heat than casing-cooling fans.
- Voltage and frequency (e.g. 120 V 60 Hz or 230 V 50 Hz)
- Output power or the airflow needed with your impeller or blade
- Shaft diameter and length, rotation and mounting
- Noise and electromagnetic-interference requirements
LONGWELL range
- Shaded-pole fan motors for ovens and toasters: 100–240 V 50/60 Hz, insulation class A, E, B or F, oil or rolling bearings, rated operating environment -15 to +120 °C, shaft diameters 3.17 mm to 6.0 mm, low noise and no electromagnetic interference.
- General shaded-pole motors (LWSPM series): 100–240 V or 230 V 50 Hz, -15 to +80 °C, for cooling fans in cooler parts of the appliance.
- Cross-flow cooling fans: e.g. 110 mm AC cross-flow fan for oven heating applications (230 V, 1/2/3 speeds) and a 60 mm AC fan for high-temperature operation; lengths to suit the appliance.
- Fan assemblies: motor, blade or impeller and bracket supplied together.
Browse: shaded-pole motors · oven fan motors · AC cross-flow fans
Download: shaded-pole motor catalogue · AC cross-flow fan catalogue
Related: convection ovens · tunnel ovens
What to include in your enquiry
- Appliance type and fan position (cavity or cooling)
- Maximum ambient temperature at the motor
- Voltage, frequency, power or airflow
- Shaft, rotation, mounting; blade or impeller supplied or not
- Annual quantity and target markets
FAQ
What motor is used in a microwave fan?
Usually a small shaded-pole AC motor driving an axial blade to cool the magnetron and electronics.
Can a shaded-pole motor work inside a hot oven area?
Only if it is rated for the temperature it sees. LONGWELL lists shaded-pole motors for toaster and convection ovens with an operating environment of -15 to +120 °C; confirm the exact rating for your design.
What kind of fan does an air fryer use?
A motor driving a hot-air impeller above the basket, usually with a second impeller on the same shaft to cool the motor.
Can LONGWELL replace the fan motor in my appliance design?
Yes. LONGWELL can provide replacement candidates for many mainstream appliance fan motors. Send the nameplate, shaft, mounting and temperature conditions; the final model is confirmed by fit and an appliance test.