VER3400 - 7270 mm Kraft Paper Machine for 700 Tpd

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Year of start-up: 1968
Manufacturer: Valmet
Capacity: 250.000 tons/year
Trimmed width: 7270 mm
Speed: 1330 m/min
Previously used to produce LWC offset 60 - 80 g/m², average 68 g/m²

This machine is sold without the coater and calander and on “strict condition” that it produces only kraft paper in future

Stock preparation
Centri cleaners (1988)
Ahlström 6 stages centri cleaners, Twincleaner 133, first stage feed 1650 l/s
5^th and 6^th stage has Andritz Vortex nozzles for reject dilution
Atrex disperger (CD 700) for 6^th stage reject handling
2 x Jylhävaara JS400 (1988) primary screens, hole Ø 1,6 mm, 1650 l/s
Metso TAS 340 (1995) secondary screen, slots 0,2 mm
Retention aid is infed after screens with trump jet (4 nozzles)
Deculator (Clark & Vicario 1968)
White water saveall, disc filter (2002)

Wet-end
Sym-flo headbox (1987)
Sym-former R (1984)
Sym-press 2^nd and 4^th press (1988)
Valmet steambox (1998)
Center roll; Valrok C, Ceralease S
4^th press roll; Valrok Standard
Sym ZS –rolls 3^rd and 4^th press

Drying section
38 drying cylinders Ø 1500 mm and 7 vacuum rolls
2 x single felt groups ( cylinders 1 to 15) with 3 HI-Run boxes and 4 HS-boxes
3 x twin-run groups (cylinder 16 to 45)
Ropeless tail-threading: single groups with air pipes and twin-run groups with Metso new double force system (belt tail-threading)
Steam pressure: 350 KPa
Automatic hood ventilation control

Vacuum pumps
2 x NASH 904 –T2, year 1987
1 x CL 9001 G, year 1967
5 x CL 9002 G, year 1967

Reeler
Optireel Plus (1999); spool Ø 720 mm and a parent reel Ø 2700 mm max

Winders
JR 1000 (1988) - Reel max Ø 1500 mm, max width 3200 mm (6 pcs 4 ton and 4 pcs 6 ton)
Twin winder; center drum winder (1982) max Ø 1300 mm, max width 2600 mm
Salvage winder - JR 300
Max reel weight: 6 tons
Max Ø: 1500 mm
Max width: 3200 mm

Wrapping machine
Conventional (modernised several times)
Max Ø: 1500 mm
Max width: 3200 mm

Process control system
Accuray 1190 (1999)
6 scanners
Smart Platform