KjelDigester K-446 / K-449




The Kjeldahl method KjelDigester reduces the block digestion process by up to two hours and meets the highest safety requirements. The high degree of automation is the perfect match to the KjelMaster System allowing for unprecedented sample throughput.

Key Differences

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Highly efficient

  • Acceleration of the heating and cooling step, saving up to two hours

  • Direct transfer of the 20 position rack to the KjelSampler

  • Unattended operation by using automatic lift and delayed start time (K-449 only)

  • Programmable time / temperature profiles and full Scrubber K-415 control (K-449 only)

Safe and convenient

  • Improved sealing for effective transfer of harmful fumes

  • No user contact with hot samples due to automatic lift (K-449 only)

  • Convenient magnetic suction module fixation

  • Extended lifetime of block and accessories with protective drip tray


  • Compliant to official regulations like AOAC, ISO, EN

  • Accurate temperature control following the programmed profile

  • Reproducible digestion due to the improved thermal homogeneity

Technical Specification

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Heating principle  Contact 

Temperature control  Yes 

Max. temperature  450 °C  

Programmable profiles Yes (only K-449)  

Lift Yes (only K-449)

Heating zone  6 cm  

Sample positions  20 

Sample tube sizes  300 mL  

Other sample tubes  No 

KjelDigester K-446 / K-449


Related Products

KjelFlex K-360
KjelMaster K-375
Scrubber K-415
Scrubber K-415
KjelSampler K-376 / K-377