The Z307 is a 4-place swing-out universal centrifuge sized for the 200 mL-bottle workflows that show up routinely in cell-culture cores, blood-banking labs, and academic research groups: 200 mL conical or round-bottom bottles, 50 mL conical secondary tubes via adapters, and the full 1.8โ10 mL clinical-tube range. At 4,500 rpm / 3,350 ร g, it covers the lower-g separation work where you don't need a 14,000 rpm microcentrifuge but you do need swing-out geometry for clean phase boundaries.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| Max. speed | 4,500 rpm |
| Max. RCF | 3,350 ร g |
| Max. volume | 4 ร 200 mL (swing-out) |
| Speed range | 200 โ 4,500 rpm |
| Running time | 10 s to 59 min 50 s; 1 min to 99 h 59 min; continuous |
| Program memory | 99 saved runs (including rotor type) |
| Dimensions (W ร H ร D) | ~14 in ร 13 in ร 18.7 in (35.5 ร 33 ร 47.4 cm) |
| Power | 120 V / 50 โ 60 Hz |
| Safety standards | IEC 61010 |
Application Profile
Cell-culture pelleting at scale. 4 ร 200 mL bottles let a primary-tissue or hybridoma group pellet a full preparation in one spin rather than across multiple smaller-bottle cycles. 3,000โ3,350 ร g is squarely in the cell-pelleting range for mammalian, insect, and most microbial cultures.
Clinical primary-tube separation. 50 mL and 15 mL adapters fit standard primary blood collection tube formats; the swing-out geometry produces the horizontal boundary needed for clean serum / plasma / buffy-coat reads.
Density-gradient and step-gradient work. Swing-out geometry preserves continuous density gradients during deceleration; the Z307's selectable accel/decel rates (including unbraked) suit gradient-preservation protocols.
Phlebotomy and small-clinical-lab work. Adapter sets cover the 5โ10 mL Vacutainer range for routine clinical separation.
Method-development and teaching. 99-slot program memory plus quick-key short-spin support repetitive pulse-spin protocols and standardized program recall across rotating users.
Design Architecture
Maintenance-free induction motor. No brush wear; suited for daily shared-use deployment.
Active imbalance identification with cut-off. Asymmetric loading or mid-spin tube failure triggers automatic shutdown before excursion damage.
Motor-driven lid lock. Hard interlock, lid cannot open while the rotor is in motion, and the drive will not engage unless the lid latches.
Microprocessor control with one-handed touch operation. Large LCD shows set-point and actual values simultaneously; splash-proof foil keypad tolerates wet-bench use.
Selectable acceleration / deceleration with unbraked option for gradient and loose-pellet preservation.
Stainless-steel sample chamber for spill containment and chemical resistance.
Ordering & Configuration
Ships without rotor. The Z307 body ships with operator's manual and power cord. Select your rotor and adapter set from the Z307 rotor catalog (linked from this page), common configurations include the 4 ร 200 mL swing-out rotor with adapters down to 1.5 / 2.0 mL micro tubes, plus a 6 ร 50 mL fixed-angle option for higher-speed work.
Voltage variants: The 230 V / 50-60 Hz model is available by special order.
Step-up: For higher-speed work in the same volume range, see the Z327 Universal Centrifuge (18,000 rpm / 23,542 ร g) which shares the 4 ร 200 mL swing-out rotor catalog.
Warranty & service: 5-Year Hermle warranty (3 years full + 2 years drivetrain). Rotor validation, balance checks, and North American service available through the Benchmark / Hermle distributor network.
Frequently Asked Questions
What is the maximum speed and RCF of the Z307? 4,500 rpm / 3,350 ร g.
What is the Z307's capacity? 4 ร 200 mL in swing-out configuration, with adapters covering 50 mL, 15 mL, and clinical 5โ10 mL tube formats.
Is the Z307 a high-speed centrifuge? No. It is a lower-g swing-out universal for cell pelleting and clinical separation. For higher speed in the same volume range, see the Z327 (18,000 rpm / 23,542 ร g).
Does the Z307 ship with a rotor? No. Select the rotor and adapter set from the Z307 rotor catalog.
What voltage does the Z307 use? 120 V / 50โ60 Hz standard; a 230 V / 50โ60 Hz model is available by special order.