How to reduce CD basis weight variation on a Voith MasterJet Pro Headbox
CD basis weight variation is most often caused by turbulence insert fouling or slice lip profile error. Scan the CD profile, adjust the slice lip, and inspect the turbulence insert.
~60 min7 steps
How to diagnose foam formation problems on a Voith MasterJet Pro Headbox
Foam in the headbox causes formation defects and CD density variation. Check defoamer injection rate and stock system air entrainment sources before adjusting headbox consistency.
~30 min7 steps
How to fix a sticking slice actuator on a Voith MasterJet Pro Headbox
A sticking slice actuator creates a fixed CD basis weight hump that does not respond to control commands. Identify the stuck actuator from position feedback, lubricate or replace it at the next outage.
~90 min7 steps