DK Series Kjeldahl Digestion Units

DK Series Kjeldahl Digestion Units

Traditional Kjeldahl Digestion Units for nitrogen analysis and protein determination, with an aluminum heating block that offers an excellent thermal homogeneity, with a maximum working temperature of 450 °C.

Kjeldahl Digestion Units - TEMS™ Technology on DK 20 and 42/26

DK 20 and DK 42/26 Kjeldahl digestion units work with the innovative TEMS™ benefits, for huge savings.

Time Saving: from Ambient to 420 °C in only 35 minutes

Energy Saving: limited energy consumption

Money Saving: cost reduction for each analysis

Space Saving: reduce unnecessary use of space

Kjeldahl Digestion Units - Digestion Units for COD Analysis

DK Series is really versatile!

Especially DK 6 and DK 20, which can be used for also for COD (Chemical Oxygen Demand): their support system can manage all the glass required for the COD analysis for processing six and twenty samples simultaneously.

High Performance

  • Excellent thermal homogeneity
  • High temperature stability with aluminum block
  • Good repeatability of temperature
  • Premium quality consumables

Convenient to Use

  • Choice of 6 operating languages
  • LCD display of all parameters
  • 20 customizable program memories

Practical Considerations

  • Very small footprint
  • Constantly monitor the digestion process on display
  • Conforms to Good Laboratory Practice standard

Wide Choice

  • Models to match tube type and quantity
    • DK 6 (6-position with 250 ml tubes, Ø 42 mm)
    • DK 6/48 (6-position with 300 ml tubes, Ø 48 mm)
    • DK 8 (8-position with 250 ml tubes, Ø 42 mm)
    • DK 20 (20-position with 250 ml tubes, Ø 42 mm)
    • DK 20/26 (20-position with 100 ml tubes, Ø 26 mm)
    • DK 42/26 (42-position with 100 ml tubes, Ø 26 mm)


  • JP Pump aspirates noxious fumes
  • SMS Scrubber neutralizes all the fumes (for safety)Two JP Pumps are recommended when using DK 42/26
  • Special Application: DK6 & DK 20 can be used also for Chemical Oxygen Demandprocessing 6 or 20 samples simultaneously