Upgrade services provide improved roll performance and productivity by applying new innovations into your existing roll base. Valmet modular maintenance solutions such as upgrade services are especially targeted for critical process rolls e.g. deflection-compensated rolls and suction rolls in board and paper making.
Better machine runnability
Improved machine efficiency
Extended machine time
Reduced energy consumption
Valmet's modular service solutions consist maintenance, reconditioning and upgrade services. Roll upgrades for existing components with modern features enhance performance and productivity in board and paper production.
Your nearest service center can provide proper recommendations on which service module is best for you.
One example of upgrades is Suction Roll Upgrade Seal Flow. With Seal Flow, it is possible to achieve savings of up to 50% on the water used in the showers (calculated for 9 meter shell length).
|Water consumption l/s/m
|Water consumption m3/y
|Annual water cost
|Potential annual savings:
Suction roll upgrades
+ 10 roll measurements
Plain bearing lubrication +10 deliveries
References and articles
Pick-up roll running time extended from four to 14 months
Hamburger Hungaria was troubled by short running times, an unscheduled downtime and extensive maintenance on its PM 7 pick-up rolls. Since the installation of a new Valmet pick-up roll and roll upgrades, the running time has more than tripled.
Roll change interval increased from one to two years with Lock Seal
The Adolf Jass Fulda mill chose the Lock Seal axial seal technology developed and patented by Valmet. Nowadays it is a standard solution in Valmet's high-speed machines. Each existing roll including a competing product can be modernized with Valmet Lock Seal.
Mule-Hide Manufacturing Co. saves substantial amount of time with Suction Roll Upgrade Edge Light
Running two different sheet weights on 1PM, the mill noticed that when changing weights, the sheet tracked to the far edge of one side of the suction drum roll. After taking hours to adjust the end deckle seals, the mill was looking for a time-saving solution that will increase production.