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Thermo Scientific Sorvall ST4F Plus-MD Centrifuge
The Thermo Scientific Sorvall ST4F Plus-MD Centrifuge is a high-capacity and versatile floor model centrifuge that offers consistent performance and is ideal for routine applications. This unit comes standard with an easy-to-use keypad and high contrast LCD display. The intuitive controls simplify operation and provide detailed information on a wide range of operating parameters and processing status for optimal performance. The modern industrial design incorporated into this centrifuge supports continuous improvement in rotor loading ergonomics, user safety and current needed certifications. A motorized lid latch is featured, enabling one finger downward motions for easiest closing and locking of the centrifuge lid.
This centrifuge also utilizes Thermo Scientific’s Auto-Lock™ III Rotor System, which is a secure locking system that allows easy push-button installation and exchange of rotors. This system saves time when switching between applications and provides easy access to the rotor chamber offering quick cleaning, a healthier working environment, and longer unit life. Also featured is Thermo Scientific’s SMARTSpin™ Technology, which is an advanced rotor management system that maximizes acceleration, braking, and residual load imbalance for each rotor and bucket option, optimizing safety and improving separations. Overall, the ST4F Plus-MD Centrifuge provides faster processing of more samples with a high capacity-to-footprint ratio and simple programming interface, plus the flexibility to run most tubes and bottles on one centrifuge. The included TX-1000 Swing Bucket Rotor reaches a maximum speed of 3,800 RPM and a maximum RCF of 3,374 x g.All of our equipment is in excellent condition and will be fully tested to perform at factory specifications before being shipped.
Please confirm this rotor meets your application needs and request a different rotor, if necessary. Available rotors can be found in our Rotor Compatibility Guide.
The Thermo Scientific Sorvall ST4F Plus-MD Centrifuge includes:
- > Rotor Selected Above
- > NIST Centrifuge Calibration and Preventative Maintenance Report
- > Power Cord
- > Full 180 Day Parts and Labor Warranty
Thermo Scientific Sorvall ST4F Plus-MD Centrifuge Specifications
Maximum Speed
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15,200 RPM (3,800 RPM with included rotor)
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Minimum Speed
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300 RPM
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Maximum RCF
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25,830 x g (3,374 x g with included rotor)
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Maximum Capacity
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4 x 1000ml
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Temperature Range
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N/A
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Timer
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Up to 9 hours 59 minutes, with continuous run (hold) and pulse modes
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Acceleration Rates
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9
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Deceleration Rates
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10
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Number of Compatible Rotors
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12
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Display
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Push button and high contrast LCD interface
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Program Storage
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Up to 6 run programs
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Noise Level
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< 70 dB(A)
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Average Heat Dissipation
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1.0 kW/h
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Dimensions (W x D x H)
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22.3 x 27.2 x 32.8 in. (56.6 x 69 x 83.5 cm)
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Weight
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335 lb. (152 kg)
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Electrical Requirements
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120V, 50/60Hz, 1300W
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Refrigeration
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No Refrigeration
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Click Here to Expand Rotor Specifications
TX-750 Rotor Specs
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Capacity
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4 x 750 mL bottles
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Max RPM
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4,500
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Max RCF
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4,415 x g
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M-20 Microplate Rotor Specs
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Capacity
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2 x 3 Standard or 2 x 1 Deepwell Plates
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Max RPM
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4,000
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Max RCF
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2,272 x g
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Bioliner Rotor Specs
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Capacity
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4 x 750 mL bottles
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Max RPM
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3,500
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Max RCF
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2,739 x g
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TX-1000 Rotor Specs
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Capacity
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4 x 1000 mL Bottles
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Max RPM
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3,800
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Max RCF
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3,374 x g
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- Door Latch Assembly Checked for Full Function
- Door Hinges are Checked and Lubed as Needed
- Drive Belt is Checked for Rips and Tears and Replaced if Needed
- Rotors and O-rings are Lubed as Needed
- Lamps and Display are Checked and Replaced if Dim
- Line Cord is Checked for Signs of Fray or Damage and Replaced Accordingly
- Internal Circuitry is Checked for Faulty/Shorted Components and Replaced Accordingly
- Confirm the power supply output voltages match specified requirements for stable distribution to all internal components
- Measure and verify voltages at PCB test points to ensure accurate power delivery and circuit integrity
- Confirm rotor compatibility with the centrifuge model and check that rotor detection systems recognize the rotor type
- Inspect the exterior for any cosmetic or structural damage that could affect performance or safety
- Check the door mechanism alignment to ensure secure and smooth opening and closing
- Inspect and replace the gas strut with an OEM part to maintain proper door support and safety
- Examine the rotor chamber bowl for dents or damage and replace as needed to ensure safe operation
- Replace and confirm full functionality of all lid lock switches to maintain secure closure
- Inspect and lubricate the door lock mechanism, applying grease to the lid lock rail for smooth operation
- Test compressor functionality (if applicable) to ensure proper operation and consistent temperature control
- Conduct an 8-12 hour cycle test to validate consistent performance over prolonged use
- Confirm rotor motor stability, check for unusual noise, and assess mechanical integrity during operation
- Inspect the condensation drain and clear any clogs to prevent moisture buildup in the rotor chamber
- Verify RPM accuracy using an NIST-traceable tachometer and perform calibration as necessary
- Check the centrifuge error log to ensure zero recorded issues, confirming system reliability
Technician Inspection and Recertification Checklist: Centrifuges
The Following Checklist Is to Be Performed on All Incoming and Outgoing Pieces of Equipment
Task |
Completed? |
Remarks? |
Confirm power supply output voltages match specified requirements |
Completed |
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Measure and verify voltages at PCB test points for accuracy |
Completed |
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Confirm rotor compatibility and detection for proper identification |
Completed |
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Inspect exterior for cosmetic or structural damage |
Completed |
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Check door mechanism alignment for secure opening and closing |
Completed |
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Inspect and replace gas strut with OEM part as needed |
Completed |
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Examine rotor chamber for dents or damage and replace if necessary |
Completed |
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Replace and confirm functionality of all lid lock switches |
Completed |
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Lubricate door lock mechanism and lid lock rail for smooth operation |
Completed |
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Test compressor (if applicable) for proper operation and cooling |
Completed |
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Run 8-12 hour cycle test to ensure consistent performance |
Completed |
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Check rotor motor for stability, noise, and integrity |
Completed |
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Inspect and clear condensation drain to prevent buildup |
Completed |
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Verify RPM accuracy with NIST traceable tachometer and calibrate |
Completed |
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Check centrifuge error log for zero recorded issues |
Completed |
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To View More of Our Recertification Protocol Click Here
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