Metal processing Usually, when the load inertia is less than the motor inertia of the above mentioned problems generally will not occur. If higher than 5 times the motor rotor inertia, the general servo will appear adverse reactions, such as high-speed laser cutting machine, in the design of the inertia of the motor is considered to be less than the motor rotor inertia. Tiger transport control servo motor which has its unique advantage, load inertia ratio, applied in this industry tiger control servo advantage is more significant.