PFI beater high precision PFI mill for laboratory use

PL11-2

Specifications:

The PFI mill is a beater featuring a high reproducibility, used for studying the relationship between beating degree of pulp and physical properties. This machine is basically an experimental beater widely used in the preparation stage of paper making. Beating mechanism: a constant load is given to the pulp circulating in between stainless steel roll and cylindrical mill house, which are rotating with a constant difference in circumferential velocity, applying mechanical effects such as shear and compression, thereby performing beating by frictional forces between fibers.

The number of rotations is read on the counter. The beating degree is evaluated by the freeness tester.

Grinding mill site consists of three main parts:

- Bowls mounted on the basis of

- Refining disc having a working surface for the blade 33 (rib)

- Systems weight distribution arm, which provides the necessary pressure grinding.

Number Specifications Value

Roll Dimensions :

Diameter , 200 mm

Rib height , 30 mm  

The thickness of the ribs 5 mm 5.0

Number of Ribs ,

Dimensions grinding vessel :

An inner diameter of 250.0 mm

Inner Diameter (internal height), 52 mm

Speed Roll, vol. / Min 1440

Speed bowl , vol. / Min 720

Total bowl volume occupied by the pulp and water, 450 mL

The gap between the inner surface of the grinding vessel and grinding drum adjustable in the range from 0.00 mm to 0.20

Power supply, V , Hz 380/3/50

The total weight of the lever and provide the primary load pressing force during grinding , wherein the specific value (force per unit length ) corresponds to 1.8 kg / cm. Installing additional weight provides increased specific contact pressure corresponding to 3.4 kg / cm .

Material of the grinding vessel and stainless steel drum

Digital Timer

We use the digital meter to show the distance of the fly-cutter between pulp chest.The regulations precision is 0.005mm.

The load system in the form of a rotary head with a load presence

Control modes : manual and semiautomatic

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