Improved runnability and faster tail threading at Lee & Man
Aug 18, 2015
By converting double-felted cylinders in the fourth and fifth dryer groups to single-felted cylinders, Lee & Man Dongguan Hongmei mill was able to improve the runnability and shorten the threading time of its PM 15.
“We have been paying much attention to energy consumption ever since the project kick-off meeting. As a result, the fan power of supply air after the web stabilizer SR blow box upgrade has decreased by about 30%, while the vacuum level has improved. This has all been made possible thanks to Valmet’s technology,” explains Chen Liming, Senior Manager of the Project Department at Lee & Man.
1 earlier known as VacRolls 2 earlier known as SymRun blow box 3 earlier known as SingleForce Plus 4 earlier known as LiteCompact
We consider Valmet to be the top supplier of paper machinery and technology. Its strengths include long experience of rebuilds, extensive process know-how, and professional project management.”
Edmond Lee, CEO of Lee & Man Paper
Summary
Location
Dongguan, China
Customer challenge
PM 15 suffered from poor machine runnability and a high number of production breaks.
After a ten-day shutdown, the machine was able to produce 70–90 g/m2 fluting in the very first month after the rebuild with nearly 3% better efficiency than previously.
