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DYNO-MILL KD

Agitator bead mill for dispersion and wet grinding

Principle

The DYNO-Mill is an agitator bead mill with horizontal grinding container for dispersion and finest wet grinding in a completely enclosed system. The DYNO-Mill is suitable for all kinds of products — from low to highly viscous pumpable products. Specially designed agitator discs, mounted symmetrically on a shaft, transfer the energy required for dispersion and wet grinding to the spherical grinding beads. An external pump feeds the product into the mill.

Range

DYNO-Mills are available in different designs and sizes, from small laboratory models up to large mills for production plants, offering the optimal size for every application. The mill equipment, materials, and grinding bead separation system can be adapted to the individual needs for each application.

Modular construction

All machine parts in contact with the product and subject to wear are easily replaceable and available in different materials. Modular construction allows easy conversion of mills already in operation.

Grinding containers

The slim construction of the grinding container guarantees a narrow residence time distribution. The high cooling efficiency attained by the spiral flow of the cooling water in the outer jacket allows the processing of highly viscous temperature-sensitive products.

Materials

The materials used depend on the size of the mill and the intended application. Wear parts can be made of alloyed stainless steel, chrome-plated stainless steel, tungsten carbide or synthetic materials.
For contamination-free dispersion and grinding, mills up to 60 litres can be delivered with wear parts of high-quality sintered materials or ceramic.

Grinding beads

Depending on the application and mill size, grinding beads of glass, ceramic, or steel from 0,15 mm — 3,0 mm are used. The grinding result is influenced directly by the size and type of the grinding beads.

Separation of the grinding beads

The grinding beads are retained in the mill by means of a dynamic gap separator or a special slot screen. The separation system used depends on the product being milled and the mill type.

Agitator discs

The agitator discs transfer the energy required for dispersion and wet grinding to the grinding beads. The shape and arrangement of the discs guarantee optimal energy input and even distribution of the grinding beads in the grinding container.

Electrical control

Switches for local control of motor starters and instruments for monitoring the operating conditions are mounted on the mill. Safety limits on the mill are preset according to application.

Advantages

  • Completely enclosed system
  • Highest efficiency
  • Easy operation and easy-to-service
  • Optimal geometry of grinding container and agitator discs
  • The appropriate mill size for every application
  • Different materials available for wear parts in contact with the product

Fields of application

  • Paint industry
  • Ink industry
  • Audio and video tape coating
  • Dyestuffs and pigment production
  • Food industry
  • Fillers for paper and plastics industries
  • Thermal and fax paper coating
  • Pharmaceutical industry
  • Agrochemical industry
  • Microbiology and biochemistry

Technical data

Data summary for the complete mill range

Type Grinding container (l) Motor output (kW) Production rate (kg/h) Weight (kg)
MULTI LAB from


to		 0,15
0,3
0,6
1,4		 3,3
4,6		 1


80		 95
KD6(6) from
to
6		 10
15		 20
150
800
KD6(8) from
to		 200 600 900
850
KD20B from
to
16,5		 17,5
24		 70
500
700
KD25 from
to
25		 24
30		 100
700
800
KD45D from
to
46		 36
45		 180
1000
1600
KD60 from
to
60		 36
58		 200
1300
1800
KD120A from
to
128		 55
75		 300
2000
2400
KD190A from
to
196		 55
84		 500
3000
2600
KD280A from
to
196		 55
84		 800
5000
2900
KD600 from
to
600		 160
250		 1000
8000
8000

The values listed are guidelines and can vary according to the product being processed and the grinding quality required. Specific data and values are listed in the data sheets and operating manuals of each mill.

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