how to choose the right punch grinder

How to choose right punch grinder?
Punch grinder is applicable to the grinding punches in mold industry, using at surface grinding machine to grinding punches, there are three type of punch grinder, PGA punch grinder, PGAS mini punch grinder, PGAM electric punch grinder, how to choose appropriate punch grinder to the grinding punche? I hope that after you check my suggestion then you can choose the right after grinding punch machine. If punches are small, within 6 MM,You choose PGAS Punch grinder, grinding 0.5-6 MM , if the diameter of punches is very samll,you can be adjusted pressure arm of the screw to avoid heavy pressure If punches is large diameter, more than 6 MM , suggest using PGA punch grinder, can grinding 1.5-25 MM , in grinding different punches, regulating pressure screw to adjustment pressure size, with different sizes of punches, make it more stable processing. If want to be automatic, can choose electric punch grinding machine, grinding range 1.5-25 MM, simultaneously the electric punch grinding machine is the motor drive roll rotation, can avoid the hand and fatigue phenomenon, at the same time can be used with magnetic sine platform use grinding and kind of Angle.