Laboratory Dutch type "Valley"

Applicable standards:
TAPPI T 200m
TAPPI T 205m
ISO 5246-1
Scan C 25

  • 제품정보 (특징)


    • Grinding container made of stainless steel
    • Knife made of chrome steel and knife holder made of brass
    • Drain opening closed by stopper
    • Grinding pressure adjustable by hanging weight, zeroing adjustable by sliding weight
    • Volume: 23 l (at 1.57% consistency)
    • Roller speed : 500 rpm
    • amount of pulp that can be ground: 360 g (dry)


    The laboratory Dutchman is made entirely of stainless steel material. With a capacity of 23 l, the container is suitable for grinding 360 g of pulp. The knives have a diameter of approx. 190-194 mm and are approx. 152 mm wide. The counter knife consists of seven lead cast knives with a thickness of 3.2 mm. The counter knife and the bottom of the laboratory dutch are sealed with a rubber plate. The device is particularly safe due to the cover of the tub.


    description 360 g of pulp are chopped by hand into pieces of approx. 25x25 mm, soaked in water and opened with the standard whipping device. After the pulp sample has been opened, the suspension is introduced into the Dutchman
    and made up to 23 l with water. The laboratory Dutchman starts and remains in operation for 3 minutes without weight. A sample is taken before the actual grinding. Then a weight of 5.5 kg is
    fixed on the loading arm and the grinding process is started. A first sample is taken after 5 minutes. At regular intervals (5, 10, 15 and 20 minutes for bleached pulp, 5, 15, 30, 60 and 90 minutes for unbleached pulp). The pulp can now be used for the production of test sheets.


    • Knives and knife holders made from standard-compliant materials
    • Built-in motor (security class IP 55)
    • Electrical switch box • Pulp quantity
    : approx. 360 g dry
    • CE-certified
    • Delivery includes substructure

    Technical data:

    Power supply: 230 V, 50 Hz
    water: water, waste water optional for cleaning)
    Compressed air: no
    Dimensions (WxDxH): 120x80x170 cm
    Net weight: 150 kg
    Gross weight: 200 kg