Do you need balancing services for turbine, compressor and generator rotors up to 200,000 lbs (62.5 tons) at low speed and up to 50,000 lbs (25 tons) at full operational speed? Contact Sulzer for high-speed or at-speed balancing by our experienced technicians and engineers.
At-speed balancing significantly reduces the likelihood of costly and time-consuming field balancing.
We can monitor:
Displacement in several points along the body of the rotor
X/Y radial vibration at the bearings (vibration diagnostics) in order to achieve the best balance at operating speed as well as to minimize deflection and vibration amplitudes during ramp up and coast down
Equipment will run at lower vibration levels, which helps maintain the reliability of the equipment.
Benefits of at-speed balancing:
Ensures correct axial placement of static and couple balance corrections to reduce the response at both critical and running speeds
Offers the opportunity to relieve assembly stress, or “relax” the rotor by operating under full centrifugal stress prior to balancing
Before undertaking high-speed balancing of rotors, you should consider the conditions whereby it is required. This technique is appropriate for rotors which:
Have exhibited high vibration as they pass through their critical speeds
Accelerate slowly through their critical speeds
Run at or near critical speed
Are sensitive to unbalance
Are for equipment in extremely critical services
Are destined for inaccessible locations such as offshore facilities
Are flexible and very long
High-speed balancing is also used in places where a critical rotor cannot be run in its intended casing prior to installation.
At-speed balancing reduces the need for field balancing
Our operational speed bunker can accommodate turbomachinery up to 30 ft (9 m) in length, 10 ft (3 m) in diameter, and up to 50,000 lbs (25 tons) in a vacuum chamber.
Birmingham, England
Our facility can balance generator rotors up to 39 ft (12 m) in length and 100,000 lbs (50 tons) in weight at speeds up to 5,200 rpm.
