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K-439 and K-360 for the determination of protein in milk and SO2 in wine

“The solution for Kjeldahl as well as sulfur dioxide determination on one single instrument, is excellent. Moreover the support for application development is very much appreciated.”

cheese and wine


Customer name

Dr. S.S. Marwaha, Chief Executive Officer

Company / Institution

Punjab Biotechnology Incubator, India


The key benefit of this system is the flexibility to do back-titration and direct distillation of steam volatile compounds. Automated dosage of strong acids and the ability to connect an external titrator to the K-360 allow broad application flexibility.

Product lines


SpeedDigester K-439

The SpeedDigester K-439 revolutionizes IR digestion. It combines the benefits of IR and block digestion in one unit. Fast nitrogen determination by Kjeldahl digestion at controlled temperatures enables an increased sample throughput. Multiply the instrument functionality whenever needs are changing.

KjelFlex K-360

Perform Kjeldahl nitrogen or protein determination and additional steam distillation in the most flexible way. The modular setup allows to adapt the KjelFlex K-360 at any time including a wide selection of titrators to guarantee smooth and easy operation.


Solution «Kjeldahl Flexibility»

You want to be flexible by using your products for classical Kjeldahl analysis also for related applications without time consuming changes. Our highly modular solution copes with semi-automated Kjeldahl applications as well as reflux digestion and direct distillation.


Solution «Direct Distillation»

You deal with limited lab space, changing samples and demands for different analytes requiring direct steam distillation. We offer a modular all-in-one solution covering various steam-volatile compounds with semi-automated operation and direct link to external titrators.

Alcoholic Beverages

Solution «alcoholic beverages»

Discover the benefits of the BUCHI solutions for the entire alcoholic beverages production cycle from the raw material to the finished product.