For various reasons, the color steel equipment makes its center of mass or inertial axis do not coincide with its axis of rotation, and the appropriate balance level should be selected according to the needs. After adding or reducing appropriate methods to make it reach the balance level demand, this process is called balance proofreading, or balance for short.

When working, the appearance of unstable centrifugal inertial force/coupling force of centrifugal inertia and dynamic deflection (mode shape) is called the unbalanced appearance of the rotor.This unbalanced appearance leads to the oscillation of the shaft system and then affects the normality of the machine. Work and service life, so it must be paid attention to, the level of unbalance (unbalance amount U is usually expressed by the product of the m of the rotor and the centroid of the rotor to the axis of rotor inversion r, mr, called the product of the mass diameter. The mass of the unit is also useful The radial product expressed as the migraine distance e is not a migraine in a few senses. The mass-diameter product mr is a relative quantity related to the rotor, and the migraine distance e is a certain quantity independent of the rotor. The former is more intuitive and is often used in The balance operation of the rotor is given in detail. The latter is used to measure the balance of the rotor or to detect the balance accuracy. The balance grade standard of the tile press is identified by e. Unbalanced centrifugal inertial force/centrifugal inertial force will occur during work. And the appearance of dynamic deflection (mode shape) is called the unbalanced appearance of the rotor.