The Z327-200-A15 is the 3-position 15 mL conical tube insert for the Hermle Z327-200-BUK swing-out bucket on the Z327 / Z327-K chassis 4-place rotor — sold as a 2-pack. Each insert holds 3 × 15 mL conical tubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 12 × 15 mL conical tubes per cycle in swing-out geometry. The A15 is lid-compatible (works with the Z327-200-LID for hermetic seal); the sister Z327-200-A15B insert holds 4 × 15 mL conical (16/cycle) but is non-lid-compatible — pick A15 for biosafety workflows, A15B for higher non-sealed throughput.
Key Specifications
| SKU | Z327-200-A15 |
| Type | Tube insert — 3 × 15 mL conical |
| Pack quantity | 2 inserts per SKU (full 4-bucket configuration takes 2 units = 4 inserts) |
| Per-insert capacity | 3 × 15 mL conical tubes |
| Per-cycle throughput (full configuration) | 12 × 15 mL conical per cycle |
| Tube format | 15 mL conical Falcon-style (17 mm OD, 120 mm length) |
| Bucket lid compatibility | Lid-compatible — works with Z327-200-LID for hermetic seal |
| Compatible bucket | Z327-200-BUK (with Z327-200-LID for hermetic seal) |
| Compatible rotor | Z327-200 (or Z327-200-AC rotor body without buckets) |
| Compatible chassis | Z327, Z327-K (refrigerated), and -E voltage variants |
| Max. operating speed (with insert + tubes) | Per Z327-200 spec — 5,000 rpm at 4,136 × g maximum |
| Max. radius | 14.8 cm (0.0 cm radius correction — full radius preserved) |
| Geometry | Swing-out (0–90°) — flat sediment surface |
| List price | $288 (2-pack) |
Compatibility & When to Order This SKU
Insert pairing — Z327-200-BUK swing-out bucket only. Order this SKU when:
- Adding 15 mL conical workflow to an existing Z327 / Z327-K + Z327-200 install — order 2 units for full 4-bucket symmetric loading (12 tubes/cycle).
- BSL-2 + 15 mL conical workflows — when the workflow requires hermetic containment via the Z327-200-LID, the A15 is lid-compatible (the A15B sister insert is not).
- Cold-chain 15 mL conical clinical-research prep on the Z327-K refrigerated chassis.
- Replacement inserts if a current set is damaged or worn.
A15 vs A15B — Lid-Compatibility Trade-Off
The Z327-200 rotor system offers two 15 mL conical insert paths with different per-cycle throughput and biosafety capability:
| Insert | Per cycle | Lid compatible | Trade-off |
| Z327-200-A15 (this SKU) | 12 × 15 mL conical | Yes — sealable for BSL-2 + | Lower throughput, biosafety-capable |
| Z327-200-A15B | 16 × 15 mL conical | No — * not lid compatible | Higher throughput, non-sealed only |
Pick the A15 when biosafety containment matters (potentially infectious patient samples, BSL-2 + clinical-research workflows). Pick the A15B when per-cycle throughput matters more than biosafety.
Application Profile
4-bucket symmetric loading. All 4 buckets must use matching A15 inserts for symmetric balance.
Per-insert symmetric loading. Within each insert, the 3 conical tubes should be balanced symmetrically — pair tubes by mass with the third position symmetric to the bucket's central axis.
Optional hermetic seal via LID. When combined with the Z327-200-LID, the bucket creates a hermetic envelope for BSL-2 + 15 mL conical workflows.
Design Architecture
BSL-2 + 15 mL conical clinical-research prep — clinical-research workflows handling potentially infectious patient samples in 15 mL conical format that require aerosol containment during the spin step.
Cold-chain BSL-2 + 15 mL prep on Z327-K — when both refrigeration AND biosafety containment are required for 15 mL conical workflows.
Cell-culture pellet recovery in 15 mL — pelleting non-adherent cells from 15 mL suspension batches at 12 tubes per cycle on the cold-chain swing-out chassis.
Density-gradient prep in 15 mL — Ficoll, Percoll, sucrose-gradient prep where the swing-out flat-sediment geometry preserves gradient interfaces and the cold-chain integrity supports gradient stability.
Biobank patient-sample prep at 15 mL — biobank intake workflows that batch patient samples in 15 mL conical for downstream cryostorage with biosafety-capable handling.
Cross-format Z327-K core facilities — labs that run 15 mL conical alongside other tube and bottle formats benefit from stocking the lid-compatible A15 insert for biosafety workflows.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching A15 inserts. Mixed-bucket configurations produce mass asymmetry.
Optional hermetic-seal engagement. When using the Z327-200-LID for biosafety workflows, confirm the lid is fully engaged on each bucket before each spin.
Tube cap confirmation. All conical tubes must be securely capped before spinning at 5,000 rpm.
Z327-200-A15 ships as 2 inserts. 15 mL conical tubes are operator-supplied (commodity Falcon / Corning / equivalent formats). The Z327-200-BUK bucket and (optional) Z327-200-LID are sold separately.
Confirm at quote: bucket pairing (Z327-200-BUK in inventory; Z327-200-LID if biosafety required), chassis pairing (Z327 or Z327-K), tube format (15 mL conical Falcon-style), workflow biosafety driver (A15 lid-compatible vs A15B non-sealable), pack count (2 packs for full 4-bucket configuration), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the inserts.
Z327-200 15 mL insert pair (Z327 / Z327-K chassis):
- Z327-200-A15 (this product) — 3 × 15 mL conical, lid-compatible (BSL-2 +)
- Z327-200-A15B — 4 × 15 mL conical, * not lid compatible (higher non-sealed throughput)
Pick A15 for biosafety workflows; pick A15B when throughput matters more than containment.
