145 mL Nalgene Round-Bottom Bottle Insert for Z306-100 (2/pk)

The Z306-100-A145 is the 145 mL Nalgene round-bottom bottle insert for the Hermle Z306-100 swing-out bucket on the Z307 chassis 4-place rotor, sold as a 2-pack. Each insert holds 1 × 145 mL bottle; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 4 × 145 mL bottles per cycle (580 mL total volume per cycle) when fully equipped. The largest bottle format in the Z306-100 insert family, the right pick for institutional bulk-prep workflows where 145 mL is the working volume.

Key Specifications

Compatibility & When to Order This SKU

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

1. Adding 145 mL Nalgene bottle workflow to an existing Z307 + Z306-100 install. Order 2 units for full 4-bucket symmetric loading (580 mL total throughput per cycle).
2. Institutional bulk cell-prep workflows that batch 4 × 145 mL cultures or aliquots per cycle.
3. Replacement inserts if a current set is damaged or worn.

Application Profile

4-bucket symmetric loading. All 4 buckets must hold matching A145 inserts for symmetric balance at 4,500 rpm. With full configuration, each cycle processes 580 mL of working volume, the largest single-cycle volume in the Z306-100 insert family.

Nalgene round-bottom format precision. The A145 envelope is dimensioned for the 50 mm OD × 116 mm length Nalgene round-bottom format. Bottles outside this dimensional range may not seat properly; verify dimensions if using non-Nalgene bottles.

Polypropylene Nalgene durability. Nalgene round-bottom bottles are autoclavable polypropylene. It supports repeated reuse, chemical-cleaning cycles, and protocol stability over the bottle's service life.

Design Architecture

Institutional bulk cell-prep workflows. Pelleting cells from 145 mL bacterial or mammalian culture batches; the 4 × 145 mL parallel throughput consolidates institutional prep in one cycle.

Vaccine and bioprocess intermediate prep. Vaccine-development and bioprocess workflows that batch 145 mL volumes for intermediate concentration steps; the mid-RCF range (3,350 × g) supports gentle pellet recovery without over-compaction.

Mid-large volume protein workflows. TCA, ammonium-sulfate, organic precipitation in 145 mL working volume.

Environmental sample prep. Water, soil-extract, sediment-supernatant prep at 145 mL bottle scale for downstream analytical workflows.

Mid-volume institutional clinical-research prep. Pooled sample workflows where 4 patient pools batch into 145 mL bottles per cycle.

Cross-format Z307 chassis consolidation: labs running both 145 mL bulk-prep and smaller-volume workflows benefit from the cross-format Z306-100 insert family on a single bucket and chassis.

Ordering & Configuration

4-bucket symmetric loading. All 4 buckets must use matching A145 inserts. Mixed-bucket configurations produce mass asymmetry.

Bottle cap confirmation. All Nalgene bottles must be securely capped before spinning at 4,500 rpm, at 145 mL working volume, sample loss from a cap failure represents substantial sample volume.

Bottle volume balance. When the 4 bottles carry different sample volumes, pre-balance pairs by total mass before spinning. At 145 mL bottle scale, 1–2 mL volume differences per bottle don't materially affect balance, but >5 mL differences do.

Z306-100-A145 ships as 2 inserts. Bottles (145 mL Nalgene round-bottom) are operator-supplied.

Confirm at quote: bucket pairing (Z306-100 in inventory), chassis pairing (Z307), bottle format (145 mL Nalgene round-bottom, 50 mm OD), 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 bottle-insert family (Z307 chassis):

- Z306-100-A145 (this product): 145 mL Nalgene round-bottom, largest bottle insert in the family

- Z306-100-A100: 100 mL round-bottom glass

- Z306-100-A85: 85 mL bottle

- Z306-100-A50 / A50R: 50 mL conical / round

Pick the A145 when the workflow batches 4 × 145 mL bulk preps per cycle; pick smaller-volume inserts when working volume is below 100 mL per position.