Electrothermal MQ Series Macro-Kjeldahl Extraction Heaters

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Multiple variations of this product are available, see all options below

Product Features

  • Choose from 2- or 6-position heaters to accommodate a variety of flask sizes depending on your application
  • Set the same temperature for all six mantles or adjust the range of each mantle individually
  • Stainless steel construction is rugged and easy-to-clean
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

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Total Summary

SKU Attribute Qty

Total Qty


Item Number of Positions Capacity per position Max. Temperature Electrical Requirements Stock Qty Product SKU Unit Price Qty

The Electrothermal MQ Series Macro-Kjeldahl Extraction Heaters has been designed for Kjeldahl extraction on a macro scale to determine the protein content of food.

These multibank units with either 2 or 6 recesses, have a stainless steel outer casing with back-mounted brackets (supplied with each unit), which can hold support rods of 12.7mm diamter max. There are 2 volume sizes available for both the 2 and 6 recess models, one for 100 - 300ml vessels and the second for 500 - 800ml vessels.

Key Features

  • Rugged, easy to clean stainless-steel construction
  • Back-mounted brackets hold flask support rods (supplied with each unit)
  • Choice of 2 or 6 positions
  • Choice of 2 flask capacity sizes: 100 - 300ml and 500 - 800ml for both the 2 and 6 position models
  • Operates up to a maximum element temperature range of 550°C to 800°C
  • Dedicated controllers for each recess are housed in a "cool zone"
  • Grounded stainless steel earth screen covering the heating element
  • Units are double fused for added safety (except for the MQ3868B/E which is only available as the 230V model as it is wired in directly)
Each heating mantle has its own energy regulator incorporating an On/Off switch and a "Mains to Heater" amber neon indicator. There is also a "Mains On" clear neon indicator on the front panel. The lower part of the unit houses dedicated controllers for each recess. This "cool zone" housing is separated from the heating elements by a stainless steel screen and a well-ventilated air space. The heating element consists of thermally insulated element wire stitched into a cartridge, and operates up to a maximum element temperature range of 550°C to 800°C. All MQ Macro-Kjeldahl Equipment models incorporate an earth screen to protect the user from electric shocks and are double-fused for extra safety (except for the MQ3868B/E which is only available as the 230V model as it is wired in directly). The rugged stainless steel outer casing is durable and easy to clean.

Product Specification

Element temperature range 550°C to 800°C maximum
Case material Stainless Steel
Thermal insulation Ceramic fibre/ mineral wool
Clamps for support rods Fitted with adjustable clamps to accept the standard arms supplied
Wells capacity, ml 100 - 300
Wells dimensions,(dia x depth) mm 89 x 45
Wells capacity, ml 500 - 800
Wells dimensions,(dia x depth) mm 117 x 59
No. of positons 2 - 6
Colour White
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