Thermo Jouan B4i Multifunction Centrifuge
Thermo Jouan B4i Multifunction Centrifuge is a non-refrigerated, tool-free benchtop centrifuge with AUTO-LOCK rotor exchange, reaching up to 14,000 rpm (18,400 x g) with a fixed-angle rotor. This centrifuge includes the AB 15.4 rotor (30 x 15mL), suited for high-throughput blood tube and general sample separation. Tested and working by Alliant Scientific.
Listing last updated: August 2026
Description
Thermo Jouan B4i Multifunction Centrifuge Overview
This Thermo Jouan B4i Multifunction Centrifuge pairs a direct-drive brushless motor with Jouan’s AUTO-LOCK rotor exchange, letting labs switch rotor configurations in about 5 seconds without tools — useful for benches running multiple sample types on the same instrument.
The B4i is microprocessor-controlled with 5 programmable run presets and a timer range from 30 seconds to 99 minutes plus continuous run. It’s a non-refrigerated, ventilated design; for temperature-controlled runs, the equivalent refrigerated model is the Jouan BR4i.
This Centrifuge is offered fully refurbished and tested, in working condition by Alliant Scientific.
Includes:
- Thermo Jouan B4i Multifunction Centrifuge
- AB 15.4 Rotor (30 x 15mL)
- 30-Day Warranty
Browse More Centrifuges
Looking for other centrifuge options? Browse our full selection of pre-owned centrifuges, including refrigerated, high-speed, and benchtop models to fit different lab workflows.
Technical Specifications
| Model | Thermo Jouan B4i |
| Rotor Included | AB 15.4 (30 x 15mL angle rotor) |
| Max Speed (Angle Rotor) | 14,000 rpm |
| Max Speed (Swing-Out) | 4,000 rpm |
| Max RCF (Angle Rotor) | 18,400 x g |
| Max RCF (Swing-Out) | 2,880 x g |
| Refrigerated? | No (refrigerated equivalent: Jouan BR4i) |
| Drive System | Direct, brushless motor |
| Rotor Exchange | AUTO-LOCK, tool-free, ~5 seconds |
| Programs | 5 (direct recall) |
| Timer Range | 30 sec – 99 min + continuous |
| Power | 115V / 500W |
| Dimensions (H x W x D) | 372 x 400 x 495 mm |
| Weight (uncrated) | 40 kg |
| Condition | Tested & Working |
| Warranty | 30 days |
Additional information
| Availability | |
|---|---|
| Condition | |
| Model | |
| Onsite Installation | |
| Warranty | |
| Brand |
Key Features
- AUTO-LOCK Rotor Exchange
Swap rotors in about 5 seconds, no tools required. - AB 15.4 Rotor Included
30 x 15mL angle rotor for high-throughput tube runs. - Direct-Drive Brushless Motor
Low maintenance, low vibration operation. - Microprocessor-Controlled Programs
5 programmable run presets with direct recall. - High Speed Range
Up to 14,000 rpm / 18,400 x g on angle rotor configuration. - Compact Footprint
Fits standard benchtop space (372 x 400 x 495 mm).
Applications
- Blood Tube & Clinical Sample Separation
High-throughput processing for clinical and diagnostic labs. - Microtiter Plate Processing
Compatible with plate rotors for microplate workflows. - General Sample Prep
Suited for research and diagnostic lab workflows. - Cytology Slide Preparation
Used for cytology and related sample prep tasks.
FAQ (Frequently Asked Questions)
What rotor is included with this Jouan B4i?
This unit includes the AB 15.4 rotor, a 30 x 15mL angle rotor rated to 4,000 rpm / 2,415 x g.
Is the Jouan B4i refrigerated?
No. The B4i is non-refrigerated and ventilated. The refrigerated equivalent model is the Jouan BR4i.
What is the maximum speed of the Jouan B4i?
14,000 rpm (18,400 x g) with a fixed-angle rotor, or 4,000 rpm (2,880 x g) with a swing-out rotor.
Can other Jouan rotors be used with this centrifuge?
Yes. The B4i’s AUTO-LOCK system is compatible with the broader Jouan rotor lineup, including S40, S20, AB 50.10A, and AB 10.12 rotors, sold separately.
Does this unit include a warranty?
Yes — this unit ships with a 30-day warranty.














