HVAC Blower Motor Magnets
We offer custom arcs for HVAC blower motor magnets. You send your drawing or a sample. Our engineers evaluate the arc radius, chord width, and thickness within 5 working days. We also recommend the best grade based on your target torque. Sample delivery is 10 days for existing tooling. New tooling takes 45 days. MOQ is 100,000 pieces. We support mixed models in one order. For noise-sensitive projects, we can provide matched pairs.
Product Introduction
Low-Noise Design from Precision Grinding
We make HVAC blower motor magnets for car air conditioning systems. These magnets must be quiet because blowers run close to passengers. Our 22-year experience taught us that inner arc smoothness directly affects noise. We control roughness to Ra ≤ 1.2 µm. This is tighter than our general standard. Our grinding operators use diamond wheels and frequent dressing to maintain this finish. We also match magnetic flux within 3% for motors that need ultra-low vibration. Every batch of product goes through a noise test simulation in our lab. That is why our product are trusted by blower assemblers in Jiangsu, Zhejiang, and Guangdong.
Consistent Flux for Smooth Airflow
We use Y30H and Y30H-1 grades for HVAC blower motor magnets. Remanence ranges from 370 to 430 mT. Coercivity stays between 210 and 270 kA/m. These values are slightly lower than cooling fan grades, but they are optimized for quiet operation. Lower flux ripple means less torque pulsation. Less pulsation means less audible whine. Our 17 presses and 9 grinding lines hold dimensional tolerance to ±0.3 mm. We also offer flux grouping service. This means we sort product by flux value before shipping. Assemblers can then pair magnets with similar flux in one motor. This extra step reduces vibration further. Every shipment of product includes a size and flux report.
Custom Arcs for Different Cabin Layouts
Car cabins have different blower sizes. We offer custom arcs for HVAC blower motor magnets. You send your drawing or a sample. Our engineers evaluate the arc radius, chord width, and thickness within 5 working days. We also recommend the best grade based on your target torque. Sample delivery is 10 days for existing tooling. New tooling takes 45 days. MOQ is 100,000 pieces. We support mixed models in one order. For noise-sensitive projects, we can provide matched pairs. This service is popular among luxury car blower suppliers. We pack product in trays with separators. This prevents edge chips. We support EXW and FOB. Payment is 30% deposit and 70% before shipment. Our product are a quiet solution for any air conditioning system.
|
Parameter |
Value |
|
Material Grades |
Y30H, Y30H-1 |
|
Remanence (Br) |
370 – 430 mT |
|
Coercivity (Hcb) |
210 – 270 kA/m |
|
Intrinsic Coercivity (Hcj) |
300 – 380 kA/m |
|
Max. Energy Product (BH)max |
26 – 34 kJ/m³ |
|
Working Temperature Range |
-30°C to +220°C |
|
Density |
4.8 – 5.0 g/cm³ |
|
Inner Arc Surface Roughness |
Ra ≤ 1.2 µm |
|
Dimensional Tolerance |
±0.3 mm |
|
Inner Arc Accuracy |
Custom per customer drawing |
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