What is Critical Speed?
Critical speed is the rotational speed where shaft natural frequency matches operating frequency, creating a vibration risk.
View Industrial Agitator & MixerCritical Speed Explained
Critical speed is the rotational speed where shaft natural frequency matches operating frequency, creating a vibration risk. In industrial mixing, this parameter should be reviewed along with tank geometry, impeller type, fluid properties and operating objective.
Common Applications
- Shaft safety
- Vibration control
- Long shaft agitators
- High speed operation
Important For
- Avoid excessive vibration
- Prevent shaft failure
Selection Factors
Correct selection depends on the process objective and site conditions. For Critical Speed, Premix usually reviews these points before recommending equipment:
- Shaft length
- Shaft diameter
- Impeller weight
- Support bearing design
Why It Matters In Plant Operation
Critical Speed affects process stability, chemical usage, equipment life and final output quality. A correctly selected solution helps reduce trial-and-error at site and supports more predictable daily operation.
Frequently Asked Questions
What is Critical Speed?
Critical speed is the rotational speed where shaft natural frequency matches operating frequency, creating a vibration risk.
Where is Critical Speed commonly used?
It is commonly used in Shaft safety, Vibration control, Long shaft agitators, High speed operation.
How does Premix select Critical Speed?
Premix reviews Shaft length, Shaft diameter, Impeller weight, Support bearing design along with the plant layout and maintenance requirement.