Rapid Digestor-4


  • Kjeldahl Digestion Fume Removal Method: Benchtop
  • Product Subcategory: Rapid Macro Kjeldahl
  • Purpose: Kjeldahl Digestion
  • Required Accessories: 4-Place Fume Removal System, Digestion Tubes


  • Weight: 34.0 lbs
  • Weight metric: 15.0 kg
  • Dimensions: 9" w x 11.25" d x 6.88" h
  • Dimensions metric: 23 x 29 x 17 cm
  • Electrical: 115 V, 50/60 Hz, 7 amps

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Available in 4- or 25-place models, Rapid Digestors have an individual ceramic block heater module for each tube for efficient, uniform heat transfer. Unlike aluminum block designs, Labconco's ceramic modules have virtually the same coefficient of heat expansion as the digestion tube for rapid destruction of organic materials and fast digestions. Digestion times range from 25 to 45 minutes depending on the sample type and catalyst. Each ceramic heater is insulated on all four sides as well as the bottom to prevent heat loss and reduce external housing temperature.

The RapidStill II provides the ideal companion for the Rapid Digestors.


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Classical and Rapid Kjeldahl, Fat and Crude Fiber Apparatus Catalog

Provides specifications and dimensional data on our Classical Kjeldahl units, Micro and Rapid Digestors, RapidStills I and II, Goldfisch Fat Extractors and Crude Fiber Apparatus.

View PDF (9.0 MB)

User's Manuals

Rapid Digestor Fume Removal System Manual (1999 - 2013)

For catalog numbers: 2350020, 2350025, 2354000

View PDF (424.9 KB)

Rapid Digestors Manual

For catalog numbers: 23012, 23080

View PDF (1.5 MB)