Effective operation of the paper machine can be extremely challenging.
The paper or tissue machine is the final stage in the process for producing the specified end product in a pulp and paper mill. The pulp slurry is run across the 'wire' to drain water and create a continuous pulp web, and the wet web passes through a press section to squeeze out excess water before finally passing through a heated drying section. Effective operation of the machine can be extremely difficult as there are many critical loops that require accurate and reliable measurement and control. Deviations in basis weight, pulp consistency controls , stock flows, head box level, condensate levels, vacuum controls and dryer temperature can result in an off-spec end product or lost production due to sheet breaks.