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Management Side
Technical Side
Voith Paper to Supply Newsprint Line to Perlen Papier AG, Switzerland
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Heidenheim, Germany, 07 April 2009 -- Perlen Papier AG, Switzerland, placed a major order for the delivery of a newsprint production line with Voith Paper on 26 January 2009Start-up of the new PM 7 is scheduled for autumn 2010.

The PM 7 overall system is laid out for the production of 360,000 metric tons per year (MTPY) of newsprint in a basis weight range of 40-55 g/m2. The paper machine has been designed for a maximum production speed of 2000 m/min, and has a wire width of 10,450 mm. PM 7 will produce standard and higher grade newsprint of the highest quality.

The goal for the new system is to replace the existing PM 5, which has a capacity of 130,000 MTPY, with a new high-efficiency production line. Integrating the new line into the existing infrastructure had been a particular challenge that was resolved through a feasibility study.

To supplement the existing recovered paper preparation system, Voith will supply a new stock preparation line with a capacity of 700 MTPD (metric tons per day). The well-proven TwinDrum pulper with a capacity of more than 1400 MTPD will feed both lines to meet the special demands of reliably slushing recovered paper bundles, which are very common in Switzerland.

It is followed by a two-stage flotation system, screening and dispersing machines, and machines for dewatering and bleaching. The complete feeding system of the pulper with automatic dewiring and rejects and sludge disposal also is included in the scope of supply.

The Voith wet end segment includes a ComMix, HydroMix, VoithVac, EcoMizer cleaner, screening with MultiScreen, CompactPulper, the broke system, and fiber recovery with a bagless disk filter.

The paper machine concept has been designed according to Voith’s One Platform Concept. Excellent formation is ensured by the DuoFormer TQv, a vertical former, together with a ModuleJet headbox with dilution water control. The DuoCentri NipcoFlex press and the fourth press ensure maximum dryness and paper quality. TopDuoRun drying technology also will be used in PM 7.

Noncontact tail transfer from the last dryer in combination with vacuum technology and a high-pressure water-jet tailcutter ensure optimum tail threading.

The base paper is smoothed with two EcoSoft Delta calenders. With the Sirius reel for maximum roll diameters of 4000 mm, a trend-setting winding technology is used. The moving SensoRoll introduces a center torque from the beginning of winding till the end, thus ensuring excellent roll quality. This is also supported by the RollMaster, an ultramodern online roll hardness control system with extended diagnostic functions.

For finishing, two modern VariTop winders have been ordered from Voith. The VariTop with unwind, automatic slitter positioning, and automatic finished roll changes can produce large rolls with different core materials. After that, the finished rolls are wrapped on a ClassicPlus wrapping system and conveyed to the finished roll store with a new roll transport system.

Perlen Paper Mill also ordered a comprehensive automation package with key components from Voith. OnControl machine control and process control technology for the complete process, including stock preparation, paper machine, effluent treatment system and ancillary systems, will be used. The complete drive control will be integrated into the process control system with the OnC DriveCommand. 

In addition, Voith will supply the entire first clothing and roll covers, including SkyLine doctors.

Voith assumes overall responsibility for the production process with regard to the mechanical, process technology, and control systems according to the Process Line Package (PLP) principle. This means that Voith will supply not only the detail engineering for the overall system, but also all ancillary systems in production buildings, such as electrical engineering, piping, chests and tanks, crane systems and vacuum system. This includes all connecting pipes between the new system components and the existing infrastructure.

Voith Environmental Solutions also will engineer and supply the components for an extension of the effluent treatment system. In close cooperation with the process engineers, a water management plan will be prepared for the overall system.

Perlen Papier AG was founded in 1872 and is the only producer of magazine papers in Switzerland. After the start-up of PM 7, Perlen will be the region's largest producer of newsprint. The independent family-owned company of the CPH Group has more than 400 employees.

Voith Paper is a Division of the Voith Group and a leading partner and pioneer to the paper industry. Thanks to continuous innovation, Voith Paper improves the paper production process with the focus being on the development of resource-conserving products to reduce the consumption of energy, water, and fiber stock.

Voith was founded in January 1, 1867 and is one of the largest family-owned companies in Europe. The company has  annual sales of EUR 4.9 billion, 43,000 employees, and more than 270 locations worldwide.


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