Vertical balancing machine is to measure the rotation of the object (rotor) unbalance the size and location of the machine. When any of the rotor about its axis, relative to the mass due to the uneven distribution of the axis of the centrifugal force generated. This imbalance of centrifugal force acting on the rotor bearings can cause vibration, noise and accelerated bearing wear, thus adversely affecting the product's performance and life. Rotor rotating parts, machine tool spindles, engine crankshafts, turbine rotor, the gyro rotor and balance wheel clocks, etc. in the manufacturing process, in order to balance the need to go through smoothly functioning properly. Machine according to the measured data to correct the imbalance of the rotor, the rotor can be improved with respect to the axis of the mass distribution, or effect of the vibration produced by rotation of the rotor is reduced to within the allowable range of the vibration force on the bearings. Therefore, balancing machine is to reduce vibration, improve performance and enhance the quality of essential equipment. 
   Typically, the rotor balance, including measuring and correcting unbalance in two steps, balancing machine is mainly used for unbalance measurement and correction of unbalance is often the help of other auxiliary equipment drilling, milling and spot welding, or by hand The method is complete. Some balancing machines have to do to become a part of the correcting means balancing machines. Gravity and centrifugal type balancing machine balancing machine are two typical balancing machine. Gravity balancing machines commonly referred to as static balancing machine. It is dependent on the force of gravity of the rotor itself to measure the static imbalance. If the unbalance amount of the rotor placed in two horizontal rails, the weight of its torque roll axis of the rotor on the rail until the unbalance in the lowest position when stationary.