A fan impeller is a high-speed rotating part. Blade weight distribution, blade-root assembly, hub machining and dirt build-up can all create unbalance, leading to vibration, noise, bearing load and structural fatigue.
Every LAICHAU fan is dynamically balanced before shipment. Ultra-low-noise models are balanced to G6.3. This is a baseline for stable long-term operation, not an optional extra.
Also check on site
- Blade roots re-fitted to the original marks
- Blade bolts tightened and locked
- Consistent blade angle
- No transport or installation damage
- Periodic inspection and cleaning