Kjel­Digester K-446 / K-449

Kjel­Digester K-446 / K-449

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More samples per day

The KjelDigester offers fast and safe digestion of up to 20 samples simultaneously. The fully automated model K-449 offers a convenient automatic lift for raising and lowering the sample tube rack and a programming mode so that all digestion methods can be saved. The manual K-446 is an entry level block digester with effortless manual control and manual rack handling. The sample tube rack of both digesters can be placed directly into the KjelSampler K-376 and K-377 for fully automated, high throughput nitrogen and protein determination according to Kjeldahl.

  • Max. Temperature:450°C
  • Sample Positions:20
  • Sample Parameters:Total Kjeldahl Nitrogen
Categories: Digestion

Description

KjelDigester K-446 / K-449 – High-Efficiency, Proven & Safe Digestion

The KjelDigester K-446 / K-449 is engineered for laboratories that demand speed, accuracy, and operational safety. Its highly efficient heating and cooling significantly reduce digestion time—saving up to two hours per batch. The 20-position rack can be directly transferred to the KjelSampler, ensuring a smooth and efficient workflow. With features such as automatic lift, delayed start, and unattended operation (K-449), users gain maximum flexibility and productivity. Advanced programming of time and temperature profiles, along with full Scrubber K-415 control, delivers precise and reproducible digestion results.

Built on proven technology, the system is fully compliant with AOAC, ISO, and EN standards. Accurate temperature control and improved thermal homogeneity ensure consistent digestion across all samples. Safety and convenience are further enhanced through improved sealing for effective fume transfer, magnetic suction module fixation, and a protective drip tray that extends the lifetime of the block and accessories while reducing waste.


Key Features & Advantages

  • Direct transfer of complete sample rack to KjelSampler K-376 / K-377

  • Magnetic suction module with secure fixation and easy handling

  • Up to 120 samples per working day with fast heating and accelerated digestion

  • Automatic sample lift for safe, hands-free operation (K-449)

  • Fully unattended digestion through programmable methods

  • Genuine BUCHI sample tubes for accurate low-nitrogen analysis

  • Individual sealing of each tube for effective fume transfer to Scrubber K-415


Technical Comparison: KjelDigester K-446 vs K-449

Characteristics KjelDigester K-446 KjelDigester K-449
Automatic lift Yes
Temperature programs Yes
Scrubber control Yes
Condensate trap for liquid samples Optional Optional
Temperature control range 30 – 450 °C 30 – 450 °C

Related Products

  • Speed­Digester K-425 / K-436 / K-439