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Decreased drive energy consumption with Press Roll Cover PP
A pair of press rolls in BillerudKorsnäs Gruvön PM 6, producing containerboard grades, started to require recovering as the old rubber covers were wearing out. BillerudKorsnäs has clearly detailed targets on energy-efficient production. In addition, mill’s primary requirement for press rolls was uncompromised durability.
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Secured production line availability with Valmet service agreement at Sappi Kirkniemi
Sappi’s Kirkniemi mill extended its cooperation with Valmet to a service agreement covering various services and spare parts for all of their three papermaking lines. Especially the tail threading equipment maintenance needed the expertise skills that were not sufficiently available in-house.
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Pick-up roll running time extended at Hamburger Hungaria
Hamburger Hungaria was troubled by short running times, an unscheduled downtime and extensive maintenance on its PM 7 pick-up rolls. In 2019, Valmet delivered two oil-lubricated pick-up rolls with a two-suction chamber solution to the mill and the running time of pick-up suction roll more than tripled.
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A long-term agreement ensures process and production improvement at Star Paper
Partnering with Valmet through a long-term agreement allows Star Paper to focus on process and production improvement rather than concerns about a worn component. In addition, the agreement ensures prompt delivery times and regular visits of screen basket experts to evaluate basket performance during operation.
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Increased sizer roll cover running time with Valmet support
PT. Tjiwi Kimia PM11 in Indonesia is a high speed coated fine paper line with significant annual production, where uninterrupted reliable running time is of the utmost importance. Cover change interval can be one limiting factor. The mill chose the Valmet service experts from Cikarang to aid in taking a step forward in sizer cover running time, forming a winning team together.
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Speeding up remotely at Jeesr industries
Jeesr Industries operates Morocco’s largest tissue line, with a capacity of 30,000 tonnes per year. To further improve productivity, it was decided to target a machine speed increase from 1,800 m/min to 1,900 m/min. Jeesr and Valmet initiated the project just before the global pandemic Covid-19 closed borders, making it impossible for Valmet’s experts to travel to the site. Projects like this are complex, requiring thorough planning. When operating remotely, modern digital tools and communication channels are needed to enable real-time data collection and continuous information sharing.
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Refiner segment solution for tissue broke flakes at OKI Pulp and Paper in Indonesia
OKI Pulp and Paper Mills is a global provider of tissue, paper and board technology and services for heavy industries. They turned to Valmet as they struggled with white spots (broke flakes) from tissue broke in their tissue grades.
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Short lead time of Valmet SymZS Nip Roll reconditioning
Bukit Muria Jaya PM 3 press section SymZS Nip Rolls were running for more than seven years without servicing. The need for servicing was recognized, but the challenge was the lack of spare rolls. Depending on the process and/or market situation, a roll change was needed every two to four weeks. The customer therefore asked Valmet to perform roll and roll gear full reconditioning within a two-week turnaround. The Valmet Service Center in Cikarang was ready to take on the challenge, and with good planning and project handling, this target was successfully met.
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Service agreement leads to improved machine efficiency at Naini Papers Limited
Ever since its establishment in 1995, the Indian paper manufacturer Naini Papers Limited (NPL) has steadily developed its operations by technology upgrades and process refinements. In 2020, NPL decided to pursue another improvement and contacted Valmet in order to discuss the performance of the mill’s PM2. Their target was to improve the machine efficiency for increased production, and to enhance the quality of the paper produced.
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Improved lifetime and slitting quality of top slitter blade
One of biggest tissue mill in Japan wanted to optimize the performance of slitting section by improving slitting quality and increasing top slitter blade lifetime.
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