The Z366-250-A10 is an 8-position 6–10 mL Vacutainer-style tube insert for the Hermle Z366-250 swing-out bucket on the Z366 / Z366-K chassis 4-place rotor — sold as a 2-pack. Each insert holds 8 × 6–10 mL Vacutainer tubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 32 × 10 mL Vacutainer tubes per cycle in swing-out geometry on the cold-chain Z366-K chassis. The Z366-250 swing-out rotor reaches −2 °C at max speed on the refrigerated chassis — among the coldest cold-chain temperatures in the Hermle swing-out family, useful for cold-stable analyte and protein workflows.
Key Specifications
| SKU | Z366-250-A10 |
| Type | Tube insert — 8 × 6–10 mL Vacutainer-style |
| Pack quantity | 2 inserts per SKU (full 4-bucket configuration takes 2 units = 4 inserts) |
| Per-insert capacity | 8 × 6–10 mL Vacutainer-style tubes |
| Per-cycle throughput (full configuration) | 32 × 10 mL Vacutainer tubes per cycle |
| Tube format | 6–10 mL Vacutainer-style blood collection (16 mm OD, 75–100 mm length) |
| Compatible bucket | Z366-250 (with Z366-250-LID PC-Screw cap for sealable mode) |
| Compatible rotor | Z366-250 4-place swing-out rotor |
| Compatible chassis | Z366, Z366-K (refrigerated), and -E voltage variants |
| Max. operating speed (with insert + tubes) | Per Z366-250 spec — 4,500 rpm at 3,780 × g maximum |
| Max. radius | 16.7 cm (0.1 cm radius correction with this insert) |
| Temperature at max speed (Z366-K refrigerated) | −2 °C |
| Geometry | Swing-out (0–90°) — flat sediment surface |
| List price | $534 (2-pack) |
Compatibility & When to Order This SKU
Insert pairing — Z366-250 swing-out bucket only. Order this SKU when:
- Adding 10 mL Vacutainer-style clinical-blood-tube workflow to an existing Z366 / Z366-K install — order 2 units for full 4-bucket symmetric loading (32 tubes/cycle).
- Cold-chain clinical-blood-component prep — when the workflow uses the Z366-K refrigerated chassis at near-freezing temperature (−2 °C at max speed) for cold-stable analyte preservation.
- Institutional clinical-research blood-pool processing — 32 × 10 mL Vacutainer per cycle is sized for institutional clinical-research and biobank intake workflows.
- Replacement inserts if a current set is damaged or worn.
Application Profile
4-bucket symmetric loading. All 4 buckets must use matching A10 inserts for symmetric balance at 4,500 rpm.
Per-insert symmetric loading. Within each insert, the 8 tubes should be balanced symmetrically — pair tubes by mass.
Mixed 6 / 8 / 10 mL Vacutainer-style format flexibility. The insert envelope (16 mm OD, 75–100 mm length range) accommodates 6 mL, 8 mL, and 10 mL Vacutainer-style tube formats; the same insert serves multiple tube sizes within the supported range.
Cold-chain temperature capability. The Z366-K chassis maintains −2 °C at max operating speed — among the coldest cold-chain temperatures in the Hermle swing-out family. Useful for protocols requiring near-freezing cold-chain integrity.
Design Architecture
Cold-chain clinical-blood-component prep at near-freezing temperature — when the workflow needs the Z366-K's −2 °C cold-chain integrity for cold-stable analytes (some protein assays, some metabolomics studies, some pre-analytical preservation protocols).
Institutional clinical-research recruitment — clinical-research workflows that batch many 10 mL Vacutainer samples per cycle for serum/plasma separation with cold-chain integrity.
Biobank intake at institutional throughput — biobank workflows handling 10 mL primary collection tubes that need refrigerated centrifugation before aliquot prep for cryostorage.
Hospital reference labs — clinical chemistry and hematology prep workflows at institutional throughput on the Z366-K platform with deep cold-chain capability.
Veterinary clinical at scale — veterinary blood-component separation in 10 mL Vacutainer-style tubes for institutional veterinary practice or veterinary-research lab throughput.
Cross-format Z366-K core facilities — shared cores running 10 mL Vacutainer alongside other tube and bottle formats benefit from stocking the full Z366-250 insert family.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching A10 inserts. Mixed-bucket configurations produce mass asymmetry.
Tube cap confirmation. All Vacutainer rubber stoppers must be fully seated before spinning at 4,500 rpm.
Z366-250-A10 ships as 2 inserts. 6–10 mL Vacutainer-style tubes are operator-supplied (commodity clinical phlebotomy supplies). The Z366-250 bucket is sold separately.
Confirm at quote: bucket pairing (Z366-250 in inventory), chassis pairing (Z366 or Z366-K), tube format (6–10 mL Vacutainer-style), pack count (2 packs for full 4-bucket configuration), workflow drivers (cold-chain temperature requirement), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the inserts.
Z366-250 bucket clinical-blood-tube insert family (Z366 / Z366-K chassis):
- Z366-250-A10 (this product) — 8 × 6–10 mL Vacutainer (32/cycle)
- Z366-250-A57 — 14 × 1.8–7 mL pediatric / small-volume blood tubes (56/cycle, highest small-volume throughput)
- Z366-250-A15 — 7 × 15 mL conical (28/cycle)
- Z366-250-B10 — 12 × 10 mL direct-fit bucket (48/cycle, higher throughput)
Match the insert to the workflow's clinical blood-tube format and target throughput. The Z366-K chassis's −2 °C cold-chain capability distinguishes the Z366-250 system from other Hermle swing-out rotors.
