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.