Abstract: Analyzed here in the essay is what got the service spans of Forming Rollers 1~3 mostly shortened.It is revealed that poor lubrication condition is very closely related to the said problem.Addressing the issue, a measure is proposed and taken, i.e., adding one centralized lubrication system with control loop to realize lubrication of the forming rollers at regular time and with fixed oil quantity, which is so critical for enhancing the service spans of the said rollers.Without any manual operation interference, the added centralized lubrication system is full-automatically controlled, having the functions of automatic opening at pre-set time and automatic feeding with pre-set oil quantity. Thanks to the newly-provided lubrication system, service spans of the foresaid three forming rollers have been doubled.