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Troubleshooting cores falling during a winder auto setchange
Every winder core loader eventually runs into the same problem at some point - the cores fall during the set change process. This article lists safety concerns, probable causes and corresponding corrective actions to diagnose and resolve this problem.
Insights ● ArticleWebinar presents ways to improve safety around the winder
The batch process occurring five to ten times per hour at the winder represents one of highest potential areas of danger in the mill for operators and maintenance personnel. A free webinar on August 3rd, 2016 explored ways to mitigate this risk. The webinar is now archived and available for playback.
Insights ● Article
Easier boiler outages with Liquor to Liquor Shutdown Service
Planning and executing a boiler outage can be a major challenge. Valmet has created a new lean concept for liquor to liquor recovery boiler outages that is easy, fast and trouble-free.
Insights ● Article
Reading fluids circuit diagrams - hydraulic & pneumatic symbols
Reading hydraulic and pneumatic circuit diagrams and being able to make sense out of them is a valuable skill for mill personnel. The first article in this series presents fluid control elements.
Insights ● Article
Review of the types of roll misalignment and alignment methods
Alignment of rollers is critical to keep the web and fabrics running true without wrinkles and tight/baggy lanes. Where the rollers are determines how good the alignment must be.
Insights ● Article
Journal inspection, dryer bearing fit and internal clearance
After a dryer front bearing has been removed, the bearing fit and new bearing to be installed internal clearance should be inspected. The following procedures cover journal and bearing inspection.
Insights ● Article
Field Report - Minimizing paper curl
Paper curl is critical for many grades of paper, such as copy machine paper, papers that get coated and printed on and multi-layer paperboard grades.What causes curl and how can it be minimized?
Insights ● Article
Troubleshooting roll bouncing addresses the four probable causes
Roll vibration can intensify enough to actually bounce the rolls, causing an unsafe situation at the winder. The most common causes are mechanical hardware, controls, roll structure and paper properties. Thorough troubleshooting is the best recommendation.
Insights ● Article
Common fluids valves explained: Cartridge pressure relief valve
Pressure relief valves are used to prevent over pressurization in the hydraulic circuit. They are located close to the pumps and reservoir tank or close to the equipment to safeguard from over pressurization.
Insights ● Article
Winders require a consistent preventive maintenance program (PMP)
Sheet breaks at the winder can bring the entire papermaking process to a stop. To prevent this, the winder needs constant attention through a sound preventive maintenance program (PMP).
Insights ● Article
