Current collector supply electric power to moving electric rail   system, overhead traveler, tower crane, automatic conveyer line. It   should be possible to collect the current when the train is driven at   high   speed as well as when stopped, and the work of current collector   should not be affected by the wind speed and noise while driving at high   speed.

Especially while driving, required to be low. This can be classified as one for high-speed railway and one for light subway according to the   characteristics and speed of the train.
Crrent collectors have very excellent lubricity and electrical   conductivity, Also It does not harm other electrifying rail and have   good wear resistance and strength.