2 × 15 mL Conical Insert for Z306-100 (2/pk)

The Z306-100-A15 is the 2-position 15 mL conical tube insert for the Hermle Z306-100 swing-out bucket on the Z307 chassis 4-place 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 (swing-out geometry) when fully equipped. The right pick when the workflow needs 15 mL conical throughput with the flat-sediment geometry that swing-out rotors provide.

Key Specifications

Compatibility & When to Order This SKU

Insert pairing — Z306-100 swing-out bucket only. Order this SKU when:

1. Adding 15 mL conical workflow to an existing Z307 + Z306-100 install — order 2 units for full 4-bucket symmetric loading (8 tubes/cycle).
2. Swing-out 15 mL conical workflow when flat-sediment geometry is required (vs the angled pellet of fixed-angle 15 mL rotors on other Hermle chassis).
3. Replacement inserts if a current set is damaged or worn.

Application Profile

Swing-out vs fixed-angle for 15 mL conical. The Z306-100 + A15 combination delivers swing-out 15 mL conical workflow — the flat sediment surface preferred for clinical-blood-component separation, density-gradient prep, and any protocol where downstream supernatant aspiration benefits from a clear, perpendicular phase boundary. Fixed-angle 15 mL rotors on other Hermle chassis (Z287-0815, Z206-1215) offer higher per-cycle throughput at lower equipment cost, but with the angled pellet geometry that fixed-angle rotors produce.

4-bucket symmetric loading. All 4 buckets must use matching inserts for symmetric balance at 4,500 rpm. With the A15 insert, all 4 positions hold 2 × 15 mL conical tubes for 8-tube-per-cycle throughput.

15 mL conical format. Standard 15 mL conical tubes (Falcon, Corning, 17 mm OD) seat directly into the insert positions.

Design Architecture

Clinical-blood-component separation in 15 mL conical — when the workflow uses 15 mL primary collection (vs the 10 mL clinical default) and the swing-out flat-sediment geometry is required for downstream serum/plasma aspiration.

Cell-culture pellet recovery in 15 mL — pelleting non-adherent cells from suspension culture in 15 mL conical at 8 tubes per cycle, with flat sediment surface for resuspension volume measurement.

Density-gradient prep in 15 mL conical — Ficoll, Percoll, sucrose gradient workflows where the swing-out geometry preserves the gradient interfaces during settling.

Mid-volume institutional clinical-research prep — patient sample fractionation in 15 mL conical at 8-tube parallel throughput.

Mixed-format Z307 chassis workflows — when the lab runs 15 mL conical alongside 50 mL, 100 mL, or 145 mL bottle workflows on the same Z307 + Z306-100 bucket inventory.

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 tubes should be balanced — paired by mass before insertion.

Tube cap confirmation. All conical tubes must be capped before spinning at 4,500 rpm.

Z306-100-A15 ships as 2 inserts. 15 mL conical tubes are operator-supplied (commodity Falcon / Corning / equivalent formats).

Confirm at quote: bucket pairing (Z306-100 in inventory), chassis pairing (Z307), tube format (15 mL conical confirmed), 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.

Z306-100 bucket tube-insert family (Z307 chassis):

- Z306-100-A15 (this product) — 2 × 15 mL conical (swing-out, flat sediment)

- Z306-100-A10 — 7 × 10/15 mL round-bottom (higher throughput, round-bottom geometry)

- Z306-100-A20 — 10 × 1.5 / 2.0 mL microtube

- Z306-100-A57 — 7 × 5/7 mL

Pick the A15 for swing-out 15 mL conical workflows; pick the A10 when round-bottom geometry and higher throughput matter more.