Static and dynamic balance services of all types of centrifugal fans in Tehran are vital elements of preventive maintenance and repairs in industrial and utility units. The asymmetry of mass in the impeller of industrial fans causes destructive vibrations, premature failure of bearings and a severe drop in aeration efficiency, which this specialized process corrects the distribution of mass around the axis of rotation with portable equipment and industrial stand devices.
Why is the balance of centrifugal fan vital in Tehran industries?
In factories, hospitals and commercial complexes based in Tehran and its surroundings, the stability of ventilation and air suction equipment has a direct role in production lines. According to our technical investigations in industrial projects, more than 70% of the sudden failures of centrifugal fans are caused by rotor balance disturbance, which occurs over time due to the settling of suspended particles, blade wear or thermal stress. When the fan impeller is out of its center of gravity, it exerts an unusual centrifugal force on the shaft and body, which in addition to high noise pollution, brings high costs of emergency repairs.
The difference between static and dynamic balance in industrial equipment
Knowing the difference between these two technical methods helps factory managers to choose the best solution for their equipment:
- Static balance: This method is used for low-width, single-plane frames in which the center of mass is outside the axis of rotation. The fan is placed on free rollers or a horizontal axis, and the heaviest point rotates downward to be corrected by installing a weight. Dynamic balance: In modern and wide industrial centrifugal fans, static balance does not respond to vibration needs in any way. In practice, it has been observed that even if the impeller is statically perfectly balanced, pair imbalances are created at rated revolutions. Dynamic balance determines the exact amount and location of the correction weight using vibration sensors (pick-up) and advanced analyzer devices on two separate screens.
Implementation challenges of on-site balancing
Many large industries in Tehran do not have the possibility to dismantle the heavy fans and transfer them to the workshop because the production line is stopped. In such situations, on-site balancing with portable laser equipment is the only economical option. The main challenge in these projects is the presence of vibration waves caused by nearby equipment or unstable foundations. The experienced technicians of Kaveh wind turbine perform the balancing operation without moving the device and in the fastest possible time at the customer's site by separating vibration frequencies and using calibrated equipment.