Complete woodhandling line. Debark capacity Softwood 250m3/h and hardwood 150m3/h

Written on 12/15/2017
François HENIN


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  • Basic Information
  • Built 1989 by main Supplier Rauma-Repola Oy (now part of Valmet-Group)
  • Low running hours, because the main raw material supply for paper machine came ready chipped
  • The wood yard equipment shut downed 12/2012 and since that conserved on-site
  • Debarking capacity 250 m3/h softwood and 150 m3/h hardwood
  • Power supply 690VAC
  • Some main spare parts also available

Log receiving conveyors

  • L=12,5m, W=10m, speed 0,01-0,05 m/s
  • 10 conveyor chains

Log slasher and –conveyor

  • L=5,8 + 7,5m, H=4,5m, speed 0,25 m/s
  • 8 conveyor chains
  • 1 lowering saw with diam. 1800mm

Log feeding (chain) conveyor

  • L=58,4m, H=11m, W=2,3/4,4m speed 0,25 m/s
  • Inclination appr. 11 degrees
  • Height of sides 2,5m
  • Hydraulic motor drive

Debarking Drum

  • Manufactured by Rauma-Repola, 1989
  • Capacity softwood 250 m3/h, hardwood 150 m3/h
  • Log length min 1m, max. 8m
  • Log diameter min 8cm, max. 55cm
  • Support wheels with drives 160pce; tyre: Michelin G-20 XZA (164/160F)
  • Very little worn out

Drum supporting drives/tyres

  • 160 pce of supporting tyres, 20 pce drives 22kW, 25 1/min
  • Tyre: Michelin X, type G-20 XZA

Log splitter

  • Hydraulic powered log splitter before chipper
  • Working length 3m
  • Max. log diam. 1m

Chipper

  • Type: Rauma 12-3300
  • Log length 5m, chip length 24mm, spout size 850mm
  • Knife disc diameter 3300mm, number of knives 12 pcs
  • Speed 250 1/min
  • Motor: 2 x 3,3kV, 800kW, 25 1/s
  • One spare motor (690V, 800kW, 1500 r/min), cutting rotor, gearbox (Kumera VLA-2X710, 5,76/1)…

Disintegrator (re-chipper)

  • Rauma-Repola type TM-1300

Belt scales (weighting units)

  • Measures conveying capacity and chip weights
  • Installed on the chip conveyor from chip storage silos
  • 3 pce
  • Output signal 4-20mA

Bark shredder

  • 4 cutting knives, 3 counter knives
  • Diam. 1500mm, speed 15 1/s

Belt conveyors, screws…

  • Several belt conveyors with different lenghts until 72m, width 1000 or 1200mm
  • Several different screws

Chip storage silos

  • Silos 2 x 8000 m3
  • 3 x rotary screws for reclaimers
  • Screws: L=12,5m, D=800/508-620mm, n= 4-20 1/min
  • Some recent gearboxes (Metso typ.2C250, rat. 201, 20kW, 2005)…

Control systems (DCS, Drives)

  • DCS: Metso DNA + XD
  • Drives: Siemens Simovert P (6SC 3663-0FB02-Z)
  • MCC: Siemens

Grinding machine for knives sharpening

  • Type: ERMA Fulda

Spare parts

  • El.motors, gearboxes, bearings, knives, tyres etc.