Doctor blade 

Double pneumatic doctor and double doctors move reciprocatly to improve the efficiency so as to make the roll surface much cleaner .Double air tubes ensure the pressure of the cross web uniform.Line pressure is adjustable for a variety of occasions.

Advantage:

1.Double pneumatic doctor and double doctors move reciprocatly to improve the efficiency so as to make the roll surface much cleaner

2.Double air tire ensure the pressure of the banner line uniform.Line pressure is adjustable for a variety of occasions