Optimizing Doctoring Efficiency with UniClean-S™ Blade Holders

Challenge

A manufacturer of sustainable paper and packaging solutions in the UK was experiencing inefficiencies in their existing doctoring system. These issues included inconsistencies in blade pressure, which led to uneven cleaning and increased blade wear. A sudden increase in blade wear can escalate the frequency of blade changes required, proving costly in consumable spare parts and loss of productivity. The mill also experienced a build-up of contamination due to unsatisfactory cleaning. This in turn impacted the machine performance and sheet quality.

Solution

To help the mill maintain the high productivity and optimal machine performance required, Kadant recommended the UniClean-S™ blade holder, a reliable, low-maintenance slide out doctoring solution.

The UniClean-S blade holder is a low-profile DST style tube loaded holder, which can provide uniform loading across the roll surface. This in turn optimizes cleaning efficiency, minimizing fiber and contaminant build-up. The UniClean-S blade holder also features self-adjusting mechanisms for constant blade-to-roll contact. This helps reduce the need for operator intervention, enhancing machine safety, while solving the issue of uneven blade wear and frequent blade changes.

Results

Following Kadant’s recommendation, seven UniClean-S blade holders were installed across critical positions and saw significant improvements to their production processes. The mill quickly noticed an enhancement in cleaning performance due to the consistency in doctoring pressure. This improved sheet quality, due to reduced contamination build-up.

The improvement in blade-to-roll contact helped extend doctor blade life and reduce the amount of downtime required for blade changes. Lower maintenance requirements made operator time more efficient and improved overall productivity.