SCHARR Case Study: Enhancing Paper Machine Lubrication Reliability
Reliable centralized lubrication is important for continuous paperboard production. SCHARR’s MM Gernsbach case study describes how oil analysis, system cleaning and a revised lubrication strategy helped address flow-control problems and improve machine availability.
Paper machines often operate continuously, making reliable centralized lubrication important for production stability. The system supplies lubricant to critical components, while changes in oil condition or deposits within the system may affect flow monitoring and equipment operation. Oil analysis, system cleaning and lubrication management are therefore important maintenance practices.
SCHARR FLUID described a paperboard production facility operated by MM Gernsbach GmbH, part of the Mayr-Melnhof Karton Group. The facility has an annual production capacity of approximately 280,000 tonnes and a machine width of 3.30 meters. Frequent flow-controller alarms in the centralized oil circulation system serving the drying cylinders and shoe press prompted the search for a solution.
Initial oil analyses showed elevated wear-related and particle levels in the operating oil. Following a joint technical assessment by SCHARR and ExxonMobil, the facility selected Mobil Paper Machine Oil S 220. After thorough system cleaning and refilling, the case report stated that the board machine returned to smooth operation and flow-control alarms were resolved, reducing costs associated with unplanned downtime.
The wider lubrication strategy also included a phased change to the centralized grease supply for the dry and wet sections, beginning with Mobil SHC Polyrex 462. The case illustrates that lubrication reliability depends not only on oil selection, but also on condition analysis, system cleanliness, technical assessment and ongoing maintenance.
