Auto-Dynamic Sheet Former®

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Our centrifuge drum is Solidly constructed
During operation, water introduced into the spinning centrifuge builds up a wall until the wire is completely submerged. A traversing nozzle then sprays stock against the fabric to build up a fibre layer. When the required amount of stock has been deposited, the white water is removed, thus forming a wet paper web on the wire.

Desired physical, optical and printing properties of test sheets can be obtained by varying the grammage, MD/CD fibre orientation and the distribution of fibre and filler in the Z-direction. Test sheet properties can also be affected by the addition of chemicals to the furnish stream.
A complete paper-making system for the laboratory consists of the ADSF®, our Sheet Press and a CanPa® Dryer.

Specifications :

  • Wire speed during sheet making: 700 to 1900 m/min
  • Stock flow volume: 0.75 to 4.0 liters/min
  • Three 50-liter stock tanks, on-board
  • One 10-liter stock tank, attached to the machine
  • Computerized control with simple entry of operating parameters
  • Automatic collection and reuse of white water
  • Electrical: 200 to 240 Volts ac, 15 Amps, 50/60Hz
  • Compressed air: 550 kPa (80 PSI)
  • Dimension: 125 cm x 150 cm x 85 cm   Weight: 580 kg
'The world's most sophisticated laboratory hand sheet former™
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The ADSF® (Auto-Dynamic Sheet Former®)
  Pulp consistency: 0.1-3.0%
  Sheet size: 250mm x 970mm
  Sheet basis weight range: 10-1200 g/m2
  Wet sheet dryness: 20%
  CD/MD fiber orientation ratio: 0.2 to 0.9
  Fiber retention: approx. 95%

The ADSF produces large rectangular paper sheets with controlled fiber orientation, which are similar to the paper made on a commercial paper machine. Completely automatic operation of ADSF ensures superior quality and reproducibility of the test sheets, production of multi-layer sheets, white water collection and reuse.