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KjelDigester K-446/K-449

More samples per day


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.

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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

Product video

Voice of the customer

“The KjelDigester helps us to get results faster and it is the ideal companion to our automated Kjeldahl system. The reliability of these instruments is essential for our service laboratory, thus we really appreciate the great support from the BUCHI service team.”

Mrs. Barbara Vogel, Nutrient Analysis, Laboratory Manager
UFAG Laboratorien AG, Switzerland