On-site rotor balancing service – PRE-7060
The On-Site Rotor Dynamic Balancing Service uses the influence coefficient technique to establish the matrix relationship between the vibration of the rotor on its own supports and the residual unbalance due to mass eccentricity about the center of rotation.
The “in-situ” balancing technique is useful on open access rotors such as fans, rollers, spindles, or also on closed access rotors with pre-installed balancing plates, as in the case of vertical pumps, turbines, etc.
The main advantage of balancing “in situ” is the economic savings in the disassembly, transport, bench mounting and assembly of rotors of large dimensions or weights, or installed in inaccessible places that require crane or other dangerous operations.
The execution of balancing work in accordance with the recommendation of ISO-1940 provides the following advantages:
- Reduced fatigue load on bearings and increased bearing and bearing life.
- Reduction of vibrations and noises that could affect the quality of the processed product.
- Savings in energy consumption in the rotor drive and less heating in electric motors.
- Increased equipment and process reliability, as well as operational safety by preventing possible rotor detachment due to centrifugal force.


