The Z327-200 is the standard swing-out rotor for the Hermle Z327 / Z327-K family — 4 × 200 mL bottle capacity in swing-out geometry, shipped with 4 buckets included. At full operating speed the buckets swing horizontal, producing the clean phase boundary required for serum/plasma separation, density-gradient work, and any workflow where vertical orientation would compromise the separation. The rotor's defining feature is its deep adapter library — the 200 mL buckets accommodate adapters that scale down to 1.5 / 2.0 mL micro tubes via the appropriate Z327-200-A* insert, making one swing-out rotor the workflow tool for everything from primary blood-collection bottles down to microtubes on the same chassis.
Key Specifications
| SKU | Z327-200 |
| Type | Swing-out rotor with 4 buckets included |
| Bucket capacity | 200 mL each |
| Bucket count | 4 |
| Compatible chassis | Z327 (120 V), Z327-K (120 V refrigerated) |
| Swing range | 0–90° (horizontal at full speed) |
| Max. operating speed | 5,000 rpm (with 200 mL buckets installed) |
| Max. RCF at operating speed | 4,136 × g |
| Max. radius | 14.8 cm |
| Acceleration | 21 / 102 sec (standard / extended profile) |
| Deceleration | 12 / 387 sec (standard / extended-unbraked) |
| Bucket lid (sold separately) | Z327-200-LID — for hermetically sealed configurations (biosafety) |
Compatibility & Configuration
Chassis compatibility — Z327 family only. The Z327-200 fits the Z327 / Z327-K. Not interchangeable with Z366, Z446, Z032-HK, or smaller universal centrifuge chassis.
RFID-tagged. The Z327-200 carries an RFID tag that the chassis reads at insertion; the drive automatically applies the rotor's rated 5,000 rpm cap and tunes the per-rotor imbalance threshold. This is important on the Z327 chassis whose chassis-spec maximum is 18,000 rpm — without the per-rotor RFID cap, an operator could enter a higher speed than the swing-out rotor is rated for.
Without-buckets sister: Z327-200-AC ships the same rotor body without the 4 buckets — for facilities that already own buckets or are configuring custom bucket sets.
Bucket lid (Z327-200-LID, sold separately). Adds hermetically sealed bucket configuration for biosafety-critical separations where aerosol containment matters. The lid attaches to the bucket and seals during the spin.
Deep adapter library (sold separately, all in the Z327-200-A* SKU family). The adapters scale the 200 mL buckets down across the full tube range: A200 (1 × 200 mL conical, 56 mm ø — some 200 mL bottle formats are conical and need this adapter), A100 (1 × 100 mL RB glass, 40 mm), and A85 (1 × 85 mL RB/OR, 38 mm) for large formats; A50R / A50 / A50SS for 50 mL round, conical, and skirted tubes; A25 / A30 for 25–30 mL; A15 / A57 / A5F for 15 mL, 5–7 mL, and 5 mL; and A20 / A10 for micro and small tubes (1.5/2.0 mL up to ~10 mL).
The brochure tube-rack table specifies tube count per bucket per adapter — the 4-position rotor with appropriate adapters scales to high-throughput (e.g., 32 × 1.5/2.0 mL microtubes per cycle via the A20 adapter).
Application Profile
Primary 200 mL bottle separation — the rotor's primary use case. Bottle-format serum/plasma separation, cell-pellet recovery from 200 mL spinner-flask cultures, density-gradient work in 200 mL bottles.
High-throughput tube workflows via adapters — the 32-tube microtube configuration (via A20 adapter) gives the Z327 chassis batch-microcentrifuge throughput in a swing-out geometry, useful for clinical-research workflows that need the swing-out boundary clarity at higher per-cycle tube count.
Density-gradient work with the unbraked deceleration option (387 sec extended profile per brochure) preserving continuous gradients during slow-down.
Cold-chain swing-out separations when mounted on the refrigerated Z327-K — combines 200 mL bottle capacity with chamber temperature control for cold-sensitive proteins, vaccine concentration work, and similar cold-chain workflows.
Biosafety-critical separations when paired with the Z327-200-LID hermetically sealed bucket lid — important for blood-borne pathogen work, BSL-2/3 clinical samples, and aerosol-generating sample types.
Loading & Balance
4-bucket symmetric loading. Pair opposite buckets by weight (positions 1+3, 2+4); pre-balance to within the rotor's per-position tolerance.
Adapter consistency across the 4 buckets when using adapters — mixed-adapter loading produces asymmetric mass distribution.
Selectable accel/decel. The chassis's 10 profiles apply; 387 sec extended decel preserves loose pellets and gradients.
Ordering & Configuration
Z327-200 ships as the rotor body PLUS 4 buckets — the standard swing-out configuration ready to operate. Adapters, bucket lids, and specialty inserts are sold separately.
Compatible accessories (sold separately):
- Z327-200-AC — same rotor body without buckets (for replacement / custom bucket configurations)
- Z327-200-BUK — individual bucket (for replacement or supplementation)
- Z327-200-LID — bucket lid for hermetically sealed configuration
- Z327-200-A* adapter family — covers 100 mL down to 1.5/2.0 mL formats
Confirm at quote: chassis pairing (Z327 / Z327-K), adapter inventory needed, whether bucket lids for sealed-spin biosafety work are part of the order, and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the rotor body and buckets. Balance validation through the Hermle service network.
Z327-200 vs Z327-200-AC selection: if you're commissioning a new Z327 install or don't already have compatible buckets, order Z327-200 (this product) — the bundled rotor + 4 buckets is the single-line procurement path. Order Z327-200-AC when you already have buckets in inventory or are sourcing sealed-bucket configurations as separate line items.
