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BONNIN Laboratory Kjeldahl Digestion Furnace Protein Digestion Distillation Apparatus

Basic Information
Place of Origin: Wuhan, China
Brand Name: BonninTech
Certification: CE, ISO
Model Number: KDN-D series
Minimum Order Quantity: 1 set
Price: USD500-3000/set
Packaging Details: Standard export carton box
Delivery Time: 5-10 days
Payment Terms: T/T
Supply Ability: 200 sets/month
Display: English LCD Screen Positions: 4 Holes, 8 Holes, 12 Holes, 20 Holes; D.
Capacity Of Digestive Tube: 300ml Standard Determination Range: 240mgN
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BONNIN Kjeldahl digestion furnace


Kjeldahl digestion furnace


Kjeldahl Protein Analyser

BONNIN Laboratory Kjeldahl digestion furnace


KDN-D series digital display temperature control digestion furnace: has 4 holes, 8 holes, 12 holes, 20 holes, which can be selected according to the sample quantity of the user's detection.

Model Specification
KDN-04D Digestible 4 samples at a time
KDN-08D Digestible 8 samples at a time
KDN-12D Digestible 12 samples at a time

Digestible 20 samples at a time


a. Determination quantity: 4/8/12/20 batch;

b. Measurement of sample size: the solid is less than 5g, and the liquid is less than 20ml/;

c. Capacity of digestive tube: 300ml standard;

d. Determination range :240mgN;

e. Temperature control range:at room temperature to 550 ℃;

f. Heating rate: 60 degrees /min;

g. Temperature control accuracy:±1℃

h. Power consumption: digester (8 holes 2000W);

i. Power source: 220 (V) + / -10%, 50~60HZ;



BONNIN Laboratory Kjeldahl Nitrogen Distillation Apparatus Kjeldahl Protein Analyser



ATN-300 automatic Kjeldahl nitrogen analyzer (also known as Kjeldahl protein analyzer) is designed based on Kjeldahl method. It is mainly used to detect food, food, dairy products, beverages, feed, ammonia nitrogen, protein nitrogen, etc. in soil, water, drugs, sediments and chemicals.


Main features:

1. Manual and automatic two modes can be arbitrarily switched, and the amount of boric acid absorption liquid, alkali amount and distillation time can be arbitrarily set;

2. Can store 20 sets of experimental procedures to meet the different needs of users;

3. The automatic cleaning system automatically cleans the pipeline after each sample is distilled, so that the measurement accuracy is higher;

4. The safety protection system is perfect: digestive tube absence prompt, safety door absence prompt, the steam oven is over-temperature and over-pressure protection;

5. Automatic hydration, the amount of recovery liquid can be adjusted at will;

6. With automatic recycling alarm function;

7. Manual and automatic modes can be switched at will to meet different needs of customers.


Technical parameters:

1. Determination of varieties: grain, food, dairy products, beverages, feed, soil, water, drugs, sediments and chemicals;

2. Measurement range: 0.1mgN ~ 240mgN (nitrogen content 0.02% ~ 95%);

3. Determination of sample amount: solid ≤ 5g / piece, liquid ≤ 15ml / piece;

4. Recovery rate: better than 99.5%;

5. Repeatability: ≤ ±1%;

6. Distillation speed: 3 ~ 7 minutes / sample;

7. Cooling water consumption: 2L / minute;

8. Power: 220V 50Hz;

9. Power: 2000W;

10. External dimensions: 380 × 330 × 775mm;

11. Weight: 28kg.

BONNIN Laboratory Kjeldahl Digestion Furnace Protein Digestion Distillation Apparatus 0

BONNIN Laboratory Kjeldahl Digestion Furnace Protein Digestion Distillation Apparatus 1BONNIN Laboratory Kjeldahl Digestion Furnace Protein Digestion Distillation Apparatus 2

BONNIN Laboratory Kjeldahl Digestion Furnace Protein Digestion Distillation Apparatus 3

FAQ 1. Are you a factory or trading company?

We are a factory.


FAQ 2. Can you supply OEM?

OEM is available.


FAQ 3. What's the MOQ ?

(1). MOQ is 1 piece. The disposable supplies order usually at least 1 box.


FAQ 4. How about the order processing and lead time?

After order confirmation and receive the advance payment, we will prepare the machines and goods. Usually could ready within 10 working day, when dispatch, will inform client and send the documents for client making import customs clearance.


FAQ 5. What quality will be ensured?

100% new and quality inspection before delivery from factory.

Stable export box for good package.


FAQ 6. Can you guide the working?

The machine will deliver with English display, English manual and video for installation and operation.


FAQ 7. How can your engineer replace parts if they are not beside the machine?

Bonnin’s engineer could provide the solutions by email and video. In warranty period, we can send spare parts for free and life-time technical support for spare supply.


Contact Details
Aimee Wang

Phone Number : +86 13308639527

WhatsApp : +8613308639527