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Hermle Z446 Centrifuge w/ 221.36 Swing Bucket Rotor & Microplate Buckets
Speed Range
200 to 16,000 RPM
Maximum Capacity
4 x 750ml
- Maintenance-free induction drive ensures long-term reliability and reduced downtime
- Microprocessor controls with large LCD display for clear programming and monitoring
- Programmable operation with storage for up to 99 user-defined protocols
- Ten acceleration and deceleration profiles allow optimization for sensitive samples
- Automatic rotor recognition with overspeed protection enhances operator safety
- Active imbalance detection prevents disruption and safeguards the instrument
- Motor-driven lid lock with quick release for secure and convenient operation
- Durable stainless-steel chamber designed for easy cleaning and long service life
The Hermle Z446 Centrifuge w/ 221.36 Swing Bucket Rotor & Microplate Buckets is a versatile high-capacity benchtop unit designed to handle demanding laboratory applications with precision and reliability. Capable of reaching speeds up to 16,000 rpm and generating a maximum RCF of 24,325 × g, it supports a broad range of separations from routine tasks to advanced workflows. The 221.36 swing bucket rotor with microplate buckets enables efficient centrifugation of microtitre plates, making the Z446 an excellent choice for high-throughput protocols.
This centrifuge features a durable, maintenance-free induction drive and an advanced microprocessor control system with a clear LCD display for intuitive operation. Parameters can be set in RPM or RCF, with ten selectable acceleration and deceleration rates and storage for up to 99 user programs. Safety is ensured with automatic rotor recognition, overspeed protection, imbalance detection, and a motor-driven lid lock. With its powerful drive, flexible rotor compatibility, and advanced safety features, the Hermle Z446 Centrifuge provides laboratories with a robust solution for consistent, high-performance centrifugation.
All of our equipment is fully tested to perform at factory specifications before being shipped.
Marshall Scientific is an Authorized Distributor of Hermle products. If the included rotor and microplate bucket configuration do not meet your requirements, our team can assist in finding a compatible brand new alternative.
The Hermle Z446 Centrifuge w/ 221.36 Swing Bucket Rotor & Microplate Buckets
includes:
- > Hermle 221.36 Swing Bucket Rotor & Microplate Buckets
- > NIST Centrifuge Calibration and Preventative Maintenance Report
- > Power Cord
- > Operator's Manual
- > Full 180 Day Parts and Labor Warranty
Hermle Z446 Centrifuge w/ 221.36 Swing Bucket Rotor & Microplate Buckets
Specifications
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Speed Range
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200 to 16,000 RPM (4,000 RPM w/ included rotor)
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Maximum RCF
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24,325 x g (3,130 x g w/ included Rotor)
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Maximum Capacity
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4 x 750ml
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Temperature Range
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N/A
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Timer
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Continuous; 10 sec to 99 h 59 min 59 sec
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Acceleration Rates
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10
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Deceleration Rates
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10
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Drive System
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Maintenance Free Induction Drive
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Lid Lock
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Motor Driven
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Display
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LCD with Backlight
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Program Storage
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99 Programs
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Noise Level
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≤ 65 dB(A)
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Dimensions (W x D x H)
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21 x 26 x 15 in. (54 x 67 x 39 cm)
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Weight
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174 lb. (79 kg)
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Electrical Requirements
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120V, 50/60Hz, 5.6A, 640W
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Refrigeration
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No Refrigeration
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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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