The Z326-100H-A15 is the 2-position 15 mL conical (Falcon) tube insert for the Hermle Z326-100H bucket on the Z327 / Z327-K chassis 4-place swing-out rotor — sold as a 2-pack. Each insert holds 2 × 15 mL conical tubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 8 × 15 mL conical tubes per cycle. Workhorse 15 mL conical insert for the Z326-100H bucket — paired with sister inserts A15S (sealable), A15L (long-tube 130 mm), and A15R (round-bottom) for tube-format-specific 15 mL workflows.
Key Specifications
| SKU | Z326-100H-A15 |
| Type | Tube insert — 2 × 15 mL conical (Falcon-style) |
| Pack quantity | 2 inserts per SKU (full 4-bucket configuration takes 2 units = 4 inserts) |
| Per-insert capacity | 2 × 15 mL conical tubes |
| Per-cycle throughput (full configuration) | 8 × 15 mL conical per cycle |
| Tube format | 15 mL conical (Falcon, Corning, 17 mm OD, 120 mm length) |
| Bucket lid compatibility | Used without bucket lid (per Z327 brochure footnote — A15 is non-sealable mode) |
| Compatible bucket | Z326-100H bucket |
| Compatible chassis | Z327, Z327-K (refrigerated), and -E voltage variants |
| Max. operating speed (with insert + tubes) | Per Z326-100H spec — 5,000 rpm at 4,080 × g maximum |
| Max. radius | 14.6 cm (0.5 cm radius correction with this insert) |
| Temperature at max speed (Z327-K refrigerated) | 2 °C |
| Geometry | Swing-out (0–90°) — flat sediment surface |
| List price | $267 (2-pack) |
Compatibility & When to Order This SKU
Insert pairing — Z326-100H bucket only. Order this SKU when:
- Adding 15 mL conical workflow to an existing Z327 / Z327-K + Z326-100H install — order 2 units for full 4-bucket symmetric loading (8 tubes/cycle).
- Cold-chain 15 mL conical prep — the Z327-K refrigeration delivers 2 °C at max speed for cold-chain serum/plasma prep, density-gradient prep, and cold-stable cell-prep workflows.
- Non-sealed bucket mode — when the workflow does not require hermetic containment (no biosafety driver), the A15 is used without the Z326-100H-LID for standard 15 mL conical processing.
- Replacement inserts if a current set is damaged or worn.
Application Profile
Non-sealed insert mode. Per the Z327 brochure footnote, the A15 insert is used without the bucket lid — meaning the hermetic-seal containment is not part of the workflow when using this insert. For sealable 15 mL workflow (BSL-2 + clinical samples), use the A15S insert variant (sealable).
15 mL Falcon conical compatibility. Standard 15 mL conical tubes (Falcon, Corning, 17 mm OD, 120 mm length) seat directly into the insert positions.
4-bucket symmetric loading. All 4 buckets must use matching A15 inserts for symmetric balance.
Design Architecture
Cold-chain 15 mL conical clinical-research prep — patient sample fractionation, aliquot prep, freeze-storage workflow at 8 tubes per cycle with cold-chain integrity through the spin step.
Cell-culture pellet recovery in 15 mL — pelleting non-adherent cells from 15 mL suspension batches at cold-chain temperature for downstream-stable cell preparation.
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.
Bench-scale protein prep at cold-chain — TCA, ammonium-sulfate, organic-precipitation in 15 mL conical at 8 parallel preps with refrigeration.
Educational and graduate-level teaching workflows — molecular biology and clinical-tech curricula using 15 mL conical at standard 8-tube section sizes on a refrigerated chassis.
Cross-format Z327-K chassis flexibility — labs that run 15 mL conical alongside other tube and bottle formats benefit from stocking the full Z326-100H insert family.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching A15 inserts. Mixed-bucket configurations produce mass asymmetry.
Per-insert symmetric loading. Within each insert, the 2 conical tubes should be balanced — pair tubes by mass before insertion.
Bucket lid removal. The A15 insert is used without the Z326-100H-LID — confirm the lid is not engaged on the buckets when running this insert.
Tube cap confirmation. All conical tubes must be securely capped before spinning at 5,000 rpm.
Z326-100H-A15 ships as 2 inserts. 15 mL conical tubes are operator-supplied (commodity Falcon / Corning / equivalent formats). The Z326-100H bucket is sold separately.
Confirm at quote: bucket pairing (Z326-100H in inventory), chassis pairing (Z327 or Z327-K), tube format (15 mL conical Falcon-style), workflow biosafety requirement (A15 non-sealable vs A15S 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.
Z326-100H 15 mL insert family (Z327 / Z327-K chassis):
- Z326-100H-A15 (this product) — 2 × 15 mL conical, non-sealable mode
- Z326-100H-A15S — 1 × 15 mL conical, sealable mode (for BSL-2 + biosafety workflows)
- Z326-100H-A15L — 1 × 15 mL for 130 mm long tubes (extended-length tube formats)
- Z326-100H-A15R — 15 mL round-bottom (different tube geometry)
Match the insert variant to the workflow's tube format and biosafety requirement.
