Used Lab Centrifuges: Types, Brands & Where to Buy (2026)
Laboratory centrifuges are among the best-value used equipment purchases in the market. Unlike electronic clinical equipment where software licenses and sensor calibration add complexity, a well-maintained centrifuge with a good rotor is a mechanically simple, long-lasting instrument that can perform at original spec for decades.
A new Beckman Coulter Allegra X-30R costs $8,000–$12,000; a good used unit runs $1,500–$4,000. Thermo Fisher Sorvall RC6+ ultracentrifuges are $35,000+ new; $4,000–$9,000 used.
This guide covers centrifuge types, top brands, rotor evaluation (the most important factor), and where to find the best deals.
Types of Laboratory Centrifuges
Microcentrifuges
Small, benchtop units for 1.5–2.0 mL microtubes (Eppendorf tubes). Essential in molecular biology, PCR preparation, and small-volume separations.
- Max speed: 12,000–15,000 rpm (some reach 18,000+ rpm)
- Rotor capacity: 12–32 microtubes
- Use case: Molecular biology, genomics, proteomics, clinical micro
- New price: $500–$3,000
- Used price: $100–$1,200
Clinical / Low-Speed Centrifuges
Designed for blood tube processing in clinical labs — serum separation, urinalysis, cytospin. Typically run at 1,000–5,000 rpm.
- Use case: Hospital lab, clinical lab, blood banking, urinalysis
- New price: $1,000–$5,000
- Used price: $200–$2,000
High-Speed Refrigerated Centrifuges
The workhorse of research and clinical labs. Wide speed range (up to 20,000–30,000 rpm), interchangeable rotors, refrigeration for heat-sensitive samples.
- Use case: Cell pellets, protein isolation, bacterial cultures, cell culture
- New price: $8,000–$30,000
- Used price: $1,500–$8,000
Ultracentrifuges
Maximum speed (40,000–100,000+ rpm) for subcellular fractionation, lipoprotein separation, virus isolation, nanoparticle pelleting.
- Use case: Research, virology, lipidology, subcellular biology
- New price: $35,000–$80,000
- Used price: $4,000–$18,000
Large-Capacity / Low-Speed Centrifuges
For large-volume applications (>1L): blood bank, plasma fractionation, large-volume cell culture.
- Use case: Blood banking, bioproduction
- New price: $10,000–$40,000
- Used price: $2,000–$10,000
Swinging Bucket vs. Fixed Angle Rotors
This is one of the first decisions in centrifuge selection:
| Type | How It Works | Best For |
|---|---|---|
| Fixed angle | Tubes held at 25–45° angle | Cell/particle pelleting, speed runs |
| Swinging bucket | Tubes swing to horizontal at speed | Density gradient separations, gentle cell prep |
| Vertical | Tubes stay vertical | Ultracentrifuge gradient runs |
Top Brands in the Used Market
Beckman Coulter (Allegra, Avanti, Optima series)
The gold standard for research and clinical centrifuges. Extensive rotor ecosystem; excellent parts and rotor availability.
| Model | Type | Max Speed | New Price | Used Range |
|---|---|---|---|---|
| Allegra X-15R | Refrigerated general | 15,300 rpm | $6,500 | $1,200–$3,500 |
| Allegra X-30R | Refrigerated general | 30,000 rpm | $11,000 | $2,000–$5,000 |
| Avanti J-26 XPI | High-speed refrigerated | 26,000 rpm | $22,000 | $3,500–$8,000 |
| Optima XPN | Ultracentrifuge | 100,000 rpm | $65,000 | $8,000–$18,000 |
| Optima TLX | Tabletop ultracentrifuge | 120,000 rpm | $35,000 | $5,000–$12,000 |
Thermo Fisher Scientific (Sorvall, Heraeus, Jouan)
Thermo's centrifuge portfolio (acquired Sorvall and Heraeus) is the other dominant player. RC series Sorvall centrifuges are iconic in research labs.
| Model | Type | Max Speed | New Price | Used Range |
|---|---|---|---|---|
| Heraeus Multifuge X1R | Clinical/low-speed | 5,000 rpm | $3,500 | $500–$1,800 |
| Sorvall Legend XTR | Refrigerated | 10,000 rpm | $6,000 | $1,000–$2,800 |
| Sorvall RC6+ | High-speed refrigerated | 26,000 rpm | $22,000 | $3,000–$7,000 |
| Sorvall WX+ | Ultracentrifuge | 100,000 rpm | $65,000 | $8,000–$18,000 |
Eppendorf
German precision instruments. Dominant in microcentrifuge category and increasingly competitive in full-size centrifuges. Excellent build quality.
| Model | Type | Max Speed | New Price | Used Range |
|---|---|---|---|---|
| Minispin | Microcentrifuge | 14,500 rpm | $700 | $100–$350 |
| 5415D/5418 | Microcentrifuge | 16,000 rpm | $1,200 | $150–$500 |
| 5810R | Refrigerated general | 14,000 rpm | $7,500 | $1,200–$3,500 |
| 5920R | Refrigerated large-cap. | 9,000 rpm | $9,000 | $1,500–$4,000 |
| Centrifuge 5910R | Refrigerated | 14,000 rpm | $8,500 | $1,500–$4,000 |
Sigma (Osterode, Germany)
Mid-tier centrifuges popular in European labs and increasingly available in the US used market. Good value.
IEC (International Equipment Company)
Clinical centrifuges for routine hospital and reference lab use. Extremely common, affordable used.
The Most Important Thing: Rotor Evaluation
The rotor is everything. A centrifuge body may be worth $500 as scrap if the rotor is unavailable, cracked, or past its run-hour life. Conversely, a centrifuge body in imperfect cosmetic condition with an excellent rotor is a great buy.
Rotor Inspection Points
Physical inspection:
- No cracks, corrosion, pitting, or chemical etching
- Rotor bottom and tube holes undamaged
- O-ring (if applicable) in good condition
- Thread engagement smooth on centrifuge drive
Critical: Check Run Hours / Run Log Rotors have maximum run-hour or cycle limits defined by the manufacturer. Exceeding these limits is a serious safety issue — a failed rotor at high speed can destroy the centrifuge and injure personnel.
Always ask:
- What is the rotor's total run time?
- Does the rotor have a log (many modern centrifuges maintain electronic rotor logs)?
- Is the rotor within its certified service life?
Rotor Derating After Chemical Exposure Rotors exposed to acetone, chlorinated solvents, strong alkali, or concentrated acids have reduced rated speed limits. Ask for exposure history if available.
Rotor Replacement Costs
Factor rotor price into your total purchase cost:
- Beckman fixed-angle rotor (JA-25.50): $800–$2,500 used; $4,000+ new
- Thermo Sorvall rotor (SA-600): $600–$2,000 used
- Swinging bucket rotor (Allegra SX-4250): $1,500–$4,000 used
Pre-Purchase Checklist
General
- Powers on; no error messages on startup
- Lid opens, closes, and locks correctly
- Rotor installs and seats properly
- Run a short test cycle at low speed — listen for bearing noise or vibration
- Refrigeration cools to set temperature (for refrigerated models)
- Display and controls function
- Safety interlock: lid prevents opening during operation
Documentation
- Rotor run log or run hours (for high-speed/ultracentrifuges)
- Service/maintenance records
- Calibration records
Common Issues in Used Centrifuges
| Issue | Symptom | Repair Cost |
|---|---|---|
| Worn bearing | Vibration, noise above 3,000 rpm | $200–$800 |
| Refrigeration failure | Cannot cool below ambient | $300–$1,200 |
| Imbalance sensor failure | Stops on "imbalance" with balanced load | $150–$400 |
| Door latch / interlock failure | Won't start, won't open | $100–$300 |
| Rotor corrosion | Visible pitting, discoloration | Replace rotor |
Pricing Summary (2026)
| Centrifuge Type | New Price | Used/As-Is | Refurbished |
|---|---|---|---|
| Microcentrifuge | $500–$3,000 | $80–$600 | $200–$1,200 |
| Clinical low-speed | $1,000–$5,000 | $200–$1,500 | $500–$2,500 |
| Refrigerated high-speed | $8,000–$25,000 | $1,500–$6,000 | $3,000–$9,000 |
| Ultracentrifuge | $35,000–$80,000 | $4,000–$12,000 | $8,000–$20,000 |
| Large-capacity low-speed | $10,000–$40,000 | $2,000–$8,000 | $4,000–$14,000 |
Where to Buy Used Lab Centrifuges
eBay
The most active marketplace for used laboratory centrifuges. Wide range of brands, models, and conditions from individual labs and dealers.
Browse Used Centrifuges on eBay →
Amazon
Growing selection, particularly for smaller benchtop units and microcentrifuges.
Browse Lab Centrifuges on Amazon →
Specialized Lab Equipment Sites
- used-lab-equipment.com — Dedicated to used lab equipment including centrifuges
- lab-equipment.net — Lab equipment buyers guide and listings
- usedhospitalequipment.org — Clinical centrifuge listings from hospital sources
Frequently Asked Questions
Q: Is it safe to buy a used ultracentrifuge? A: Yes, if the rotor is within its certified service life and has been properly maintained. The critical safety element is rotor integrity — not the centrifuge body. Request rotor run hours and any available inspection records. For high-speed rotors (>50,000 rpm), never use a rotor with unknown run history.
Q: What is the most important thing to check on a used centrifuge? A: The rotor. A centrifuge body is relatively simple mechanically; bearings and refrigeration are serviceable. The rotor is the critical safety and performance element — it must be free of corrosion, cracks, and within its rated run-hour life.
Q: Can I use a different brand's rotor in my centrifuge? A: No. Rotors are brand-specific and usually model-specific. Never install an incompatible rotor — this is a serious safety hazard. Always match rotor to centrifuge model.
Q: What should I pay for a used Beckman Avanti J-26? A: In as-is condition with an included rotor, expect $3,000–$6,000. A fully serviced unit with calibration documentation from a lab equipment dealer will run $5,000–$9,000. This represents excellent value vs. $22,000+ new.
Q: Do refrigerated centrifuges require special installation? A: Standard 115V refrigerated centrifuges plug into a standard 20-amp outlet. Larger ultracentrifuges may require 208/240V. Always check the power requirements for the specific model before purchase.
Related Guides
- Complete Guide to Buying Used Hospital Equipment
- Used Sterilization Equipment: Autoclaves for Clinics
- Hospital Equipment Maintenance: Schedules & Costs
- Certified Refurbished vs Used Medical Equipment
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