Sysmex XN-550 automated haematology analyzer
A compact Sysmex analyzer with an automated sample loader, a 6-part white cell differential and automatic rerun and reflex testing. Milap International supplies, installs and services the XN-550 as an authorised Sysmex partner.
- 6-part differential including immature granulocytes (IG)
- Up to 60 samples/hour in whole blood mode
- Automated sample loader with rack sampling
- 25 µL whole blood sample volume
What is the Sysmex XN-550?
The Sysmex XN-550 is a benchtop haematology analyzer from the XN-L series. It gives a complete blood count (CBC) with a 6-part white cell differential, including an immature granulocyte (IG) count, using fluorescent flow cytometry. Its automated sample loader and automatic rerun and reflex testing make it the most automated model in the XN-L range, suited to busy hospital and diagnostic labs that want walk-away CBC testing in a small footprint.
Key features
6-part differential with IG
Neutrophils, lymphocytes, monocytes, eosinophils and basophils plus an immature granulocyte count, with no extra reagents.
Automated sample loader
Load racks and walk away; the analyzer mixes and samples each tube.
Automatic rerun and reflex
Flagged samples are rerun or reflexed to extra tests by onboard rules, a feature only the XN-550 has in the XN-L series.
Low WBC mode
Longer counting for accurate results in patients with very low white cell counts.
Optional RET and body fluid modes
Add reticulocyte counts (RET, IRF, RET-He) and body fluid cell counts with optional licences.
Same technology as the XN-Series
Shares reagents and controls with larger Sysmex XN analyzers, so results stay consistent across a lab network.
How a CBC runs on the XN-550
- Collect the blood sample in an EDTA tube; standard tubes and micro-collection tubes are supported.
- Place the tubes in racks on the automated sample loader, which mixes and aspirates 25 µL from each tube.
- The analyzer counts red cells and platelets by impedance, measures haemoglobin with a cyanide-free method and separates white cells by fluorescent flow cytometry.
- Results, flags and scattergrams appear on the touchscreen, and onboard rules rerun or reflex abnormal samples automatically.
Specifications
| Specification | Sysmex XN-550 |
|---|---|
| Analyzer type | Automated haematology analyzer, 6-part differential |
| Technology | WBC/DIFF: fluorescent flow cytometry; RBC/PLT: DC impedance with hydrodynamic focusing; HGB: cyanide-free SLS method |
| Parameters | WBC, RBC, HGB, HCT, MCV, MCH, MCHC, PLT, RDW-SD, RDW-CV, MPV, NEUT, LYMPH, MONO, EO, BASO, IG (# and %) |
| Optional parameters | RET#, RET%, IRF, RET-He (RET licence); body fluid counts (XN-BF licence) |
| Throughput | Up to 60 samples per hour (whole blood mode) |
| Sample volume | 25 µL whole blood; 70 µL pre-dilute and body fluid modes |
| Sampling | Automated sample loader with rack sampling |
| Linearity | WBC 0–440 × 10³/µL; RBC 0–8.6 × 10⁶/µL; PLT 0–5,000 × 10³/µL |
| Data storage | 100,000 sample results |
| Quality control | XN-L CHECK tri-level controls; 99 QC files |
| Maintenance | Daily shutdown and weekly cleaning cycle |
| Dimensions and weight | About 45 × 45 × 66 cm (W × H × D); about 53 kg |
Download the official Sysmex XN-350, XN-450 and XN-550 brochure (PDF, 1.7 MB)
Source: Sysmex XN-L series brochure. Specifications can vary by market; ask us for the current Indian configuration.
Who is the XN-550 for?
The XN-550 suits hospital labs, diagnostic centres and multi-speciality clinics that run a steady daily CBC workload and want automation without a large footprint. Labs moving up from a 3-part analyzer get a fuller differential, and labs that already run larger Sysmex XN analyzers can add the XN-550 as a backup or satellite analyzer with the same reagents and controls.
Compare the Sysmex XN range
| Model | Sampling | Best for |
|---|---|---|
| XN-330 | Manual, open tube | Small labs and clinics |
| XN-350 | Manual, open tube | Small and mid-sized labs |
| XN-550 | Automated sample loader, rerun and reflex | Busy hospital and diagnostic labs |
| XN-1000 | High-throughput automated sampler | Large hospital and reference labs |
Installation, training and service
Installation and commissioning
Site checks, set-up, calibration and first-run verification by Milap engineers.
Application training
Hands-on training for technicians on daily runs, QC and maintenance.
Reagents and controls
Genuine Sysmex reagents and XN-L CHECK controls supplied from Bengaluru.
AMC, CMC and breakdown support
Preventive maintenance plans, with breakdown calls answered during evenings and weekends.
Related products
Compact 5-part analyzer for small labs.
Compact analyzer with open-tube sampling.
High-throughput analyzer for large labs.
Automated coagulation analyzer.
Related guide
3-part vs 5-part hematology analyzer
Which your laboratory needs.
Sysmex XN-550: walk-away CBC testing for a busy laboratory
What the Sysmex XN-550 haematology analyzer does: 6-part differential, automated sample loader, automatic rerun and reflex, and who it suits.
Frequently asked questions
It runs a complete blood count with a 6-part white cell differential, including immature granulocytes. Reticulocyte and body fluid counts are available with optional licences.
Up to 60 samples per hour in whole blood mode.
The XN-350 uses manual open-tube sampling. The XN-550 adds an automated sample loader with rack sampling and automatic rerun and reflex testing, so it suits busier labs.
It aspirates 25 µL in whole blood mode and 70 µL in pre-dilute and body fluid modes, so it can also handle paediatric micro-samples.
Yes. Haemoglobin is measured with a cyanide-free SLS method.
Yes. Milap engineers install and commission the analyzer, train your staff, supply genuine reagents and controls, and offer preventive maintenance, AMC or CMC with breakdown support from Bengaluru.
Milap International, based in Bengaluru, is an authorised channel partner and supplies the Sysmex XN-550 automated haematology analyzer to hospitals, laboratories and clinics across Karnataka, with installation, training and service from the same team.
The price depends on the model, configuration, accessories and service terms you choose. Request a quote with your requirement and a product specialist will reply with a written price within 24 hours.
Get a quote for the Sysmex XN-550
Tell us your daily CBC volume and we will send pricing, reagent costs and a service plan.