10 × 1.5 / 2.0 mL Microtube Insert for Z306-100 (2/pk)

The Z306-100-A20 is the 10-position 1.5 / 2.0 mL microtube insert for the Hermle Z306-100 swing-out bucket on the Z307 chassis 4-place rotor, sold as a 2-pack. Each insert holds 10 microtubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 40 × 1.5 / 2.0 mL microtubes per cycle in swing-out geometry. Distinct from fixed-angle microtube rotors on other Hermle chassis (Z287-2420, Z216-2420), this insert delivers microtube workflows 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 microtube workflow to an existing Z307 + Z306-100 install. Order 2 units for full 4-bucket symmetric loading (40 microtubes/cycle).
2. Swing-out microtube workflows when flat-sediment geometry is required (vs the angled pellet of fixed-angle microtube rotors on other Hermle chassis).
3. High-throughput microtube batches at moderate RCF. 40 microtubes per cycle exceeds typical fixed-angle microcentrifuge per-cycle throughput (24–30 positions on most chassis), but at lower RCF (3,350 × g vs >15,000 × g on dedicated microcentrifuges).
4. Replacement inserts if a current set is damaged or worn.

Application Profile

Swing-out microtube workflow. The Z306-100 + A20 combination delivers a relatively rare configuration: swing-out microtube spinning. Most microtube rotors are fixed-angle 45° (producing an angled pellet on the tube wall); the swing-out A20 produces a flat sediment perpendicular to the tube axis. Useful for protocols requiring flat-pellet geometry at the microtube scale (some density-gradient protocols, some protein-prep workflows).

Throughput trade-off vs RCF. At 3,350 × g maximum, the A20 doesn't reach the high-RCF range of dedicated microcentrifuges (Z216-2420 at 18,624 × g, Z287-1820 at 15,994 × g). Choose the A20 when batch size matters more than RCF; choose dedicated high-speed microtube rotors when RCF matters more.

4-bucket symmetric loading. All 4 buckets must use matching A20 inserts for symmetric balance.

Design Architecture

High-throughput moderate-RCF microtube workflows. When the workflow batches 40 microtubes per cycle and the moderate RCF range is sufficient (cell pellet, supernatant collection, sample concentration, organic extraction).

Swing-out flat-pellet microtube prep. Protocols requiring flat sediment in microtubes for downstream supernatant aspiration or for visual phase-boundary inspection.

Educational and teaching labs. Undergraduate and graduate teaching where 40 sample positions match a full lab section's parallel sample count.

Institutional clinical-research aliquot prep. Patient sample aliquoting into microtubes at 40-tube-per-cycle institutional throughput.

Cross-format Z307 chassis consolidation: labs running both microtube workflows and bottle workflows (50/100/145 mL) on the same Z307 + Z306-100 bucket inventory.

Ordering & Configuration

4-bucket symmetric loading. All 4 buckets must use matching A20 inserts. Mixed-bucket configurations produce mass asymmetry.

Per-insert symmetric loading. Within each insert, the 10 microtubes should be balanced. Pair tubes by mass and leave any odd position empty.

Tube cap confirmation. All microtubes must be securely capped before spinning at 4,500 rpm.

Z306-100-A20 ships as 2 inserts. Microtubes are operator-supplied (commodity 1.5 / 2.0 mL formats from major commercial suppliers).

Confirm at quote: bucket pairing (Z306-100 in inventory), chassis pairing (Z307), tube format (1.5 / 2.0 mL standard microtube), 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-A20 (this product): 10 × 1.5 / 2.0 mL microtube (swing-out, 40 microtubes/cycle full configuration)

- Z306-100-A57: 7 × 5/7 mL tubes

- Z306-100-A15: 2 × 15 mL conical

- Z306-100-A10: 7 × 10/15 mL round-bottom

Pick the A20 for high-throughput swing-out microtube workflow; pick fixed-angle microtube rotors on other Hermle chassis when RCF >5,000 × g is required.