BDM for the production of lightweight printing paper.
Width: 6650 mm.
Speed: 1000 - 1050 m/min.
Production: 49 - 70 g/mXNUMX.
Productivity: 433 t / day.
Modernization: 1983 In 1997, installation of a new "Valmet" wet part

Estimated speed:
Setochnoi části - 1400 m/min
Press part - 1000 m/min
Drying section - 1000 m/min
Dryer section - 1000 m/min
The maximum speed of the drive is 1200 m/min


Machine is right hand drive from the flowbox with a sectional electric drive.
Grammage range 49 to 70 gsm. Average running grammages 52 to 55 gsm.
Average production at 54.3 gsm amd machine speed 1013 m/min is 433 t/day.
Machine efficiency approvimately 85%.
Average operational speed 1000 to 1050 m/min.
The machine house has two cranes and one will be retained with the building. DCS Valmet Dematic VME stations rebuilt. Modern heat recovery system. Steam system pressures 10/6/2.5 bars.
Soleplate centers 7850mm and deckle after the rewinder 6650mm.

Approach flow
Metso Deculator                       

LD cleaners in three stages.
Groundwood refiners: two Metso JCO-1 conical refiners.
Kraft pulp refiners: two Voith SDM-1 refiners with 30” diameter discs.
Back water fiber recovery by Nash vacuum assisted by Hedemora disc filter.
Four pressure screens prior to the headbox. Reject pressure screen in basement. Three Voith model GR21 pressure screens year 1983 hole size 1.8 mm and one MODUScreen H3 with by Ahlstrom R with 0.25 mm slotted basket. Reject screen Tampella model 24P.
The machine has a variable speed fan pump.

Wire Section
Flowbox Valmet HHSD 7080 mm slice width, dilution control, auto slice control actuators (total of 117).
Valmet Speedformer: model HSS.
Wire width: 7260mm
Soleplate centers: 7850mm
Dryness after the wire: 19%.

Press Section
Three press sections.
First and second press of Voith manufacture: double press rebuilt 1975.
Third press: Valmet SYMZS.
Dryness after press sections: 49 to 50%
Press maximum loadings: 55 kN/m first press, 100 kN/m second press and 130 kN/m third press.

Dryer Section
The Voith manufactured dryer section in enclosed hood by Voith/Valmet in 1983, with front lifting doors. Total of 60 dryers, all on A/F bearings with auto lub system.
Auto felt guiding and tensioning, steam and condensate at the rear of the dryers, sheathed rope tail feed, operational pressure 2.5 bar. As indicated the dryer section had a complete rebuild in 1982 where it was totally removed, new bearings fitted, painted, parts repaired and rebuilt, repainted etc.

Calender
The calendar has only one roll remaining and is used as a lead roll for the Honeywell moisture spray system. This section has an air transfer system from dryers through to the reel up.
Scanner: Metso IQ measuring gsm, profile, and ash.

Reel Up
Voith horizontal reel up, rebuilt 1983, hydraulic operation, reel spool store above reel up, reel shell accelerator, maximum reel diameter 2000mm. Reel transfer crane to the rewinder.

Vacuum pumps
Nash 2001, 2001, 6002, 6002, 6002, 6002, 6002, 6002, 6002, 9001 and 9001.

Rewinder
Wartsilla rewinder: seven roll stations, center reel design, reel shell unwind, design speed 2000 m/min, auto knife setting, tension control, normal finished reel width 2600mm, maximum roll weight 3500 kgs. Deckle after the rewinder 6650mm.