Home page » products » Petrochemical  »  Kjeldahl digestion » Block digestion
Digestion systems based on a heated aluminum block are widely known and are recommended in many official methods. With many years of experience in this sector, BUCHI offers three aluminum block digestion systems. These systems offer varying degrees of automation and ease of use.
Features

K-437: Manual block digester for 300 ml tubes

  • A complete device for safe digestion of up to 20 sample simultaneously.
  • The sample tubes are consistently heated and digestion fumes are completely collected using the Scrubber B-414
  • Digestion temperature and time can be entered and read on the display at any time
  • Countdown time indicator is displayed
  • All glassware is made of BUCHI high quality, borosilicate glass

K-438: Automatic block digester for 300 ml tubes

  • Comfortable lift
  • 20 heating places
  • Simple operation
  • Temperature indicator
  • Countdown time indicator
  • Programmable
  • No emission of acid fumes
  • Easily observable digestion process
  • Tubes of high-quality BUCHI glassware
  • Temperature profile with 4 temperature steps

K-432: Automatic block digester for 500 ml tubes

  • 12 heating places
  • Simple operation
  • Temperature indicator and countdown time indicator
  • 500 ml tubes, ideal for applications with low detection limits
  • Programmable and comfortable lift
  • No emission of acid fumes
  • Easily observable digestion process
  • Tubes of high-quality BUCHI glassware
  • Dedicated unit for TKN determination in water, waste water and sludge
     
Specification

 

K-432

K-437

K-438

Operating voltage

220 –240 VAC

Freqency

50/60 Hz

Power consumption

2200 W

Weight (net)

36 kg

29 kg

36 kg

Dimensions

(W x H x D)

435 x 565 (780) x 560 mm

435 x 565 (780) x 535 mm

435 x 565 (780) x 560 mm

Temperature range

50 –420 °C (450 °C

Temperature error

± 5 °C > 200 °C

± 2 °C < 200 °C

IP class

20

Print