How the punch is classified, how many species are
Manual punching machine: manual, low efficiency, low pressure, suitable for small holes, paper, leather and other manual processing.
Pneumatic punch: Pneumatic transmission, and hydraulic equivalent, but the stability of hydraulic, usually less common.
Hydraulic press: hydraulic drive, the speed is slower than the mechanical, tonnage, the price is cheaper than the mechanical, very common.
Mechanical punch: mechanical transmission, high speed, high efficiency, tonnage, the most common.
