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Büchi KjelMaster K-375 & KjelSampler K-376 Automated Kjeldahl Nitrogen Analysis System

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Guarantee
1 month
Status
Used
All 4 specifications
  • Ships to NL
  • Response within 1 hour
  • Warranty available. Buy without worry
  • Support from a scientist

Specifications 4

Brands
Buchi
New/Used
Used
Guarantee
1 month
Status
Used

Product description

Compact benchtop Kjeldahl system with automated reagent handling, titration, and sampling for nitrogen analysis.

  • System Composition:
  • Büchi KjelMaster K-375 (automated titrator)
  • Büchi KjelSampler K-376 (automated sample handling)
  • Büchi KjelDigester K-446 (sample digestion)
  • Omnilab FoodALYT pump
  • 2 Sample racks and 45 sample tubes (300 ml) included
  • Key Technical Specifications:
  • Display: 8.4-inch color touchscreen
  • Memory: >100,000 results storage capacity
  • Minimum titrator volume step: 2 µl
  • Pumps for reagents: NaOH, H3BO3, H2O
  • Adjustable steam output: 30–100%
  • Measuring range for nitrogen: 0.02–200 mg N
  • Reproducibility (RSD): <1%
  • Recovery rate: >99.5% (range 1–200 mg N)
  • Connectivity:
  • 2 RS232 ports (balance, KjelSampler)
  • 3 USB ports (printer, barcode reader, memory stick)
  • Safety sensors (3 total): service door, protective door, sample tube presence
  • Dimensions (W×H×D): 458 × 670 × 431 mm
  • Weight: 32 kg
  • Functional Features:
  • Smallest benchtop design optimized for lab space flexibility
  • “Express rack” for prioritizing urgent samples to improve workflow efficiency
  • Option for automatic or manual operation modes
  • Compatible with all Büchi sample tubes (100 ml, 300 ml, 500 ml)
  • No need for sample tube cleaning or glass transfer; reduces operator exposure to chemicals
  • Automated reagent handling minimizes contact with hazardous substances
  • Safe and continuous loading of sample racks
  • Prolongs glassware lifetime by reducing chemical exposure
  • Supports free choice of analytical methods ensuring adaptable usability

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Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.

We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.

We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.

Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026