Kjeldahl range
COLO.Science — Organic elemental analysis · Kjeldahl
KJELFASTER-A24 Kjeldahl Autosampler
KJELFASTER-A24 is a 24-position autosampler for unattended Kjeldahl batches on the KJELFASTER-K900. It moves the φ42 mm × 300 mL digestion tubes to the analyzer, keeps the cleaning position separate from the test positions to prevent cross-contamination and carries 4 × 15 L reagent tanks for approx. 500 analyses per fill. It is powered and controlled by the K900 via CAN (24 V DC, 40 W), so no separate power supply is needed.
Overview
Applications
- High-throughput labs: 24 digested samples per batch without operator attendance.
- Overnight and shift work: the batch runs while the staff prepares the next digestion.
- Accredited labs: all results go into the K900 data memory with audit trail.
- Contract laboratories: predictable capacity and fewer reagent refills.
Why KJELFASTER-A24
- Walk-away operation: load 24 digested tubes and let the K900 run the batch.
- No cross-contamination: the cleaning position is separated from the test positions.
- Fewer refills: 4 × 15 L reagent tanks for approx. 500 analyses per fill.
- Simple installation: powered and controlled by the K900 via CAN — no separate power supply.
Technical specifications
| Model | KJELFASTER-A24 |
| SKU | PRO7166 |
| Instrument type | Kjeldahl autosampler |
| Capacity | 24 samples per batch |
| Digestion tubes | φ42 mm, 300 mL (standard, open format) |
| Cleaning position | separate from the test positions |
| Rotor speed | ≥0.04 r/s |
| Sampling speed | ≥40 mm/s |
| Reagent tanks | 4 × 15 L |
| Analyses per fill | approx. 500 |
| Connection | CAN (to the KJELFASTER-K900) |
| Power supply | 24 V DC from the analyzer |
| Rated power | 40 W |
| Compatibility | KJELFASTER-K900 only |
| Dimensions (W×D×H) | 920 × 625 × 908 mm |
| Weight | 80 kg |
OPTIONS AND ACCESSORIES
Options and accessories for the KJELFASTER-A24
Standard delivery is confirmed in the quotation. The A24 requires a KJELFASTER-K900; digestion tubes and reagents are ordered separately.
PRO3572
KJELFASTER-K900 fully automatic analyzer
10″ touchscreen, 0.2–1.0 µL/step, 21 CFR Part 11, 1 million results, 0.5 L/min water.
Optional
PRO3576
KJELDIG-D450 infrared Kjeldahl digestor
Infrared + graphite, 400 °C in 25 min, 20 programs; hood and cooling rack included.
Optional
PRO3575
KJELDIG-D250 Kjeldahl digestor
20 × 300 mL, up to 450 °C, ±1 °C, 10 programs × 5 steps; fume hood included.
Optional
PRO5814
EXSC5 scrubber
Three-stage neutralization: water condensation, alkali, activated carbon; adjustable suction.
Optional
—
Digestion tubes φ42 × 300 mL (set)
Standard open-format tubes for all KJELDIG digestors and KJELFAST / KJELFASTER units — one tube from digestion to distillation.
Optional
More options and consumables
- Reagents: sulfuric acid, NaOH 40 %, boric acid with indicator, standard acid
- Kjeldahl catalyst tablets
Digestion tubes, reagents and spare parts on request. Full catalogue: Organic elemental analysis catalogue →
Selection guidance
KJELFASTER-A24 is selected when a K900 laboratory wants to run 24-sample batches unattended with minimal reagent refilling. For manual loading the K900 alone is sufficient.
Configuration checklist
- Analyzer: K900 already installed or ordered together.
- Batch size: 24 tubes per run.
- Bench: space and load capacity for 80 kg next to the analyzer.
- Reagents: 4 × 15 L tanks — plan reagent preparation.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
Complete your Kjeldahl system
