The Z326-2010 is a 20-position fixed-angle rotor for 10 mL tubes in the Hermle Z326 family, the right rotor when the workflow runs 20 × 10 mL samples per cycle at high RCF and the operator wants a single-tube-format rotor without adapter swaps. 14,000 rpm / 21,472 × g performance covers the high-RCF protein-pelleting and post-lysis clarification workflows that 10 mL clinical or research samples typically need. Per the shared Z326 / Z32-HK accessory catalog, this rotor is compatible with both the Z326 chassis family and the Z32-HK chassis. The same rotor moves between chassis types that share spindle and speed-class compatibility.
Key Specifications
| SKU | Z326-2010 |
| Type | Fixed-angle rotor (20 position) |
| Tube capacity | 10 mL each |
| Tube count | 20 |
| Compatible chassis | Z326 family (and cross-compatible with Z32-HK per shared accessory catalog) |
| Max. operating speed | 14,000 rpm |
| Max. RCF at operating speed | 21,472 × g |
| Max. radius | 9.8 cm |
| Max. tube ø | 16 mm |
| Acceleration | 50 / 412 sec (standard / extended profile) |
| Deceleration | 37 / 1,186 sec (standard / extended-unbraked, per brochure) |
| Adapter requirement | None (direct 10 mL tube fit) |
Compatibility & Configuration
Chassis compatibility. The Z326-2010 fits the Z326 family (and is cross-listed in the Z32-HK accessory catalog; Hermle's accessory-table convention groups rotors that share spindle dimensions and speed-class compatibility across the Z326 and Z032-HK chassis lines). The rotor can be moved between compatible chassis without reconfiguration, and the chassis's RFID rotor-identification system reads the rotor at insertion to apply the correct speed cap and imbalance threshold.
Direct 10 mL tube fit, no adapter required. Unlike rotors that accept multiple tube formats via insert sets, the Z326-2010 is engineered around the 10 mL tube format directly. This is a workflow-efficiency feature: no per-cycle adapter handling, no risk of incorrect adapter installation, no adapter-induced radius variation.
16 mm maximum tube diameter. Standard 10 mL clinical and research tubes (Vacutainer 10 mL ≈ 16 mm OD; standard 10 mL serum tubes ≈ 16 mm) fit directly. Confirm tube OD against the 16 mm specification at order if using non-standard 10 mL tube formats.
RFID-tagged. Like all Hermle Z-series rotors, the Z326-2010 carries an RFID tag that the chassis reads at insertion. The drive automatically applies the rotor's rated 14,000 rpm cap and tunes the per-rotor imbalance threshold to the rotor's load characteristics.
Application Profile
20-position 10 mL clinical sample workflows: the dominant application. Clinical-research, blood-bank, and immunology workflows that batch 10 mL primary samples benefit from 20-tube parallel throughput at high RCF without adapter handling.
Post-lysis debris clearance at 21,472 × g for 10 mL bacterial or mammalian lysate aliquots. It clears membrane fragments and insoluble debris before downstream chromatography or precipitation.
High-throughput protein precipitation. TCA, acetone, or ammonium-sulfate precipitation across 20 × 10 mL aliquots in one cycle, high throughput at the same g-force class as smaller-capacity microcentrifuge work.
Mid-volume serum / plasma pellet recovery when a workflow batches 10 mL primary samples for high-RCF separation rather than the standard low-RCF clinical separation profile.
Multi-sample method development. When comparing pelleting behavior across 20 sample variations under identical conditions, single-rotor 20-tube throughput supports controlled-comparison work.
Loading & Balance
20-tube symmetric loading. With 20 positions, the load-balancing pattern is opposite-pair distributed across the rotor (positions 1+11, 2+12,... 10+20). Pre-balance pairs by weight before insertion. The chassis's RFID-aware imbalance shut-off catches asymmetric loads, but operators should still pre-balance.
Direct tube fit. No adapters means no adapter-mass variation across positions. Symmetric loading is determined entirely by sample mass plus tube mass.
Selectable accel/decel. The chassis's selectable acceleration / deceleration profiles (10 each, including unbraked) apply to this rotor. Use moderate decel for protein-pelleting to keep pellets compact; use unbraked decel for loose-pellet or gradient work.
Ordering & Configuration
Z326-2010 ships as the rotor body alone. No tubes, no adapters (none required for the 10 mL direct-fit format). Operator's manual / installation guide for the rotor body is included.
Use the quote request to confirm: chassis pairing (Z326 family or Z032-HK), tube specification (confirm your 10 mL tube format fits the 16 mm max ø), training, and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the rotor body. Includes balance validation through the Hermle service network, recommended at install plus annually for high-utilization environments.
20 × 10 mL vs other Z326 rotors: if your workflow is 6 × 85 mL high-RCF angle work, see Z326-0685 or Z326-0485 (4 × 85 mL angle). For 6 × 50 mL high-speed work, see Z326-0650-HS. The Z326-2010 (this product) is the right pick specifically when 20 × 10 mL parallel throughput at ~21,000 × g matches the workflow.
