7 × 50 mL Conical Insert for Z306-100 (2/pk)

The Z306-100-A50 is the 7-position 50 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 7 × 50 mL conical tubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 28 × 50 mL conical tubes per cycle (1.4 L total volume per cycle) when fully equipped. Sister insert to the A50R (50 mL round-bottom format), both serve the same 50 mL workflow envelope but for different tube geometries.

Key Specifications

Compatibility & When to Order This SKU

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

1. Adding 50 mL conical workflow to an existing Z307 + Z306-100 install. Order 2 units for full 4-bucket symmetric loading (28 tubes/cycle, 1.4 L total).
2. Swing-out 50 mL conical workflow when flat-sediment geometry is required for downstream supernatant aspiration or pellet inspection.
3. High-throughput 50 mL prep at moderate RCF: 28-tube parallel throughput is institutional-scale 50 mL processing per cycle.
4. Replacement inserts if a current set is damaged or worn.

Application Profile

Swing-out vs fixed-angle for 50 mL. The Z306-100 + A50 combination delivers swing-out 50 mL conical workflow, flat sediment, straightforward supernatant aspiration, and clean phase boundaries for density-gradient or organic-extraction protocols. Fixed-angle 50 mL rotors on other Hermle chassis (Z206-0650, Z287-0450H) offer different chassis pairings; pick the Z306-100 + A50 when the lab's primary platform is the Z307 and 50 mL is the working volume.

Conical vs round-bottom. The A50 insert holds conical 50 mL tubes (Falcon, Corning, equivalent). For round-bottom 50 mL tube workflows (RB Glass, Nalgene round-bottom), use the A50R insert.

4-bucket symmetric loading. All 4 buckets must use matching A50 inserts for symmetric balance.

Design Architecture

Cell-culture pellet recovery in 50 mL conical: pelleting cells from suspension culture batches at institutional 28-tube parallel throughput.

Clinical-research and biobank prep at 50 mL: patient sample fractionation, aliquot prep, freeze-storage workflow at 28 tubes per cycle.

Density-gradient prep in 50 mL: Ficoll, Percoll, sucrose-gradient prep where the swing-out flat-sediment geometry preserves gradient interfaces.

Bench-scale protein prep. TCA precipitation, ammonium-sulfate cuts, organic extraction in 50 mL working volume across 28 parallel preps.

Mid-volume institutional clinical-research workflow consolidation. When sample throughput justifies the Z307's 4-place swing-out rotor + A50 insert combination.

Cross-format Z307 chassis flexibility: labs running both 50 mL conical and bottle workflows (85/100/145 mL) on the same bucket and chassis benefit from the cross-format insert family.

Ordering & Configuration

4-bucket symmetric loading. All 4 buckets must use matching A50 inserts. Mixed-bucket configurations produce mass asymmetry.

Per-insert symmetric loading. Within each insert, the 7 conical tubes should be balanced symmetrically. Pair tubes by mass, leave any odd position empty if needed.

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

Z306-100-A50 ships as 2 inserts. 50 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 (50 mL conical confirmed; A50R for round-bottom), 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 50 mL insert pair:

- Z306-100-A50 (this product): 7 × 50 mL conical

- Z306-100-A50R: 50 mL round-bottom (different tube geometry; see A50R page)

Match the insert to the workflow's tube format. Both deliver 28-tube parallel throughput on the full 4-bucket configuration; only the tube geometry differs.