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Semi-Automatic Units

  • Accuracy and repeatability
  • High thermal homogeneity heating up to 450 °C
  • Bright digital display

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DK 6

Model : DK 6

  • Heating positions: 6
  • Size of tubes: 250 ml test tubes (Ø 42 mm)
  • Power: 1000 W

DK 6/48

Model : DK 6/48

  • Heating positions: 6
  • Size of tubes: 300 ml test tubes (Ø 48 mm)
  • Power: 1000 W

DK 8

Model : DK 8

  • Heating positions: 8
  • Size of tubes: 250 ml test tubes (Ø 42 mm)
  • Power: 1150 W

DK 18/26

Model : DK 18/26

  • Heating positions: 18
  • Size of tubes: 100 ml test tubes (Ø 26 mm)
  • Power: 1150 W

DK 20

Model : DK 20

  • Heating positions: 20
  • Size of tubes: 250 ml test tubes (Ø 42 mm)
  • Power: 2300 W

DK 42/26

Model : DK 42/26

  • Heating positions: 42
  • Size of tubes: 100 ml test tubes (Ø 26 mm)
  • Power: 2300 W



DK digesters are traditional digesters, consisting of an aluminum heating block to offer high thermal homogeneity, heating up to 450 °C.


The temperature of the block is constantly controlled by a microprocessor.

The DK Series offers excellent test accuracy and repeatability and is available in the following configurations:

DK 6 (6 positions for 250 ml test tubes, Ø 42 mm)
DK 6/48 (6 positions for 300ml test tubes, Ø 48 mm)
DK 8 (8 positions for 250 ml test tubes, Ø 42 mm)
DK 20 (20 positions for 250 ml test tubes, Ø 42 mm)
DK 18/26 (18 positions for 100 ml test tubes, Ø 26 mm)
DK 42/26 (42 positions for 100 ml test tubes, Ø 26 mm)


Thermal homogeneity and precision

The DK Series digestion unit with aluminum heating block ensures high thermal homogeneity heating up to 450 °C. The temperature of the block is constantly controlled by a microprocessor and is extremely stable, homogeneous and precise: ±0.5°C at all selectable temperatures.

The DK Series guarantees accuracy and repeatability. The DK 6 series perform batch digestion of up to 6 samples with 250 ml test tubes - Ø 42 m, reducing the energy consumption (-13% compared to the previous series). Low energy consumption provides lower costs of analysis and limits CO2 release.

Space-saving design

The design of the DK series has been carefully engineered to allow laboratories to save valuable space under the hood.

DK Digesters have very compact dimensions: the new aluminum heating block has been lowered and the vertical proportions allow to free precious space in the laboratory.

The structure is made of stainless steel that has been specifically designed and tested to ensure strong resistance to chemicals and mechanical stress.

The aluminum block protection grid provides enhanced heating performance and protects the heating block from splashes and chemicals.

Easy-to-use with the intuitive digital interface

The bright digital display provides maximum visibility and easy-to-read information.

The instrument is operated with 4 keys to navigate the menu options and program the digestions in a simple and fast way. 

Through the intuitive graphic display, it is possible to set up to 20 methods with 4 temperature ramps. 

Acoustic signals inform the operator of the completion of the analysis facilitating the daily use of the digester.

The inclination of the front panel protects it from chemical spillage at high temperatures. 

Fume Neutralization System

For application where the digestion process produces fumes, acid gases or corrosive substances, the below specific accessories are strongly recommended:

JP Pump aspirates noxious fumes

SMS Scrubber neutralizes all the fumes

TEMS™ Technology

DK Series Kjeldahl digestion units work with the innovative TEMS™ benefits, for huge savings.

Time-Saving: rapid heating reduces wasted time

Energy Saving: limited energy consumption thus cutting CO2 emissions

Money-Saving: cost reduction for each analysis

Space Saving: the narrow footprint saves valuable laboratory bench space