85 mL Bottle Insert for Z306-100 (2/pk)

The Z306-100-A85 is the 85 mL round-bottom or oak-ridge bottle insert for the Hermle Z306-100 swing-out bucket on the Z307 chassis 4-place rotor — sold as a 2-pack. The 85 mL format sits in the mid-volume bottle workflow range — between the 50 mL conical/round inserts (A50, A50R) and the larger 100 mL / 145 mL bottle inserts (A100, A145). The right pick when 85 mL is the workflow's intermediate volume and the bottle format (round-bottom or oak-ridge) supports the protocol's chemical and mechanical requirements.

Key Specifications

Compatibility & When to Order This SKU

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

1. Adding 85 mL bottle workflow to an existing Z307 + Z306-100 install — order 2 units for full 4-bucket symmetric loading.
2. Mid-volume cell-prep or bioprocess workflows that batch 85 mL working volumes; the 85 mL insert is the mid-step between 50 mL conical and 100 mL bottle workflows.
3. Oak-ridge bottle workflows when the protocol uses oak-ridge tubes (a high-strength polypropylene format common in molecular-biology and high-RCF prep).
4. Replacement inserts if a current set is damaged or worn.

Application Profile

Round-bottom or oak-ridge format compatibility. The A85 insert envelope is dimensioned for the 38 mm OD × 120 mm length range — matches both standard round-bottom 85 mL bottles and 85 mL oak-ridge tubes (heavy-wall polypropylene with screw cap, typical in molecular-biology and bioprocess workflows).

Full radius preserved. The 0.0 cm radius correction means the bottle sits at the bucket's full 14.8 cm radius — delivering the maximum RCF that the Z306-100 bucket configuration provides on this insert (3,350 × g).

4-bucket symmetric loading. All 4 buckets must use matching A85 inserts for symmetric balance.

Design Architecture

Mid-volume cell harvest workflows — pelleting cells from 85 mL suspension culture batches; round-bottom or oak-ridge bottle format supports protocols requiring either geometry.

Bioprocess intermediate prep at 85 mL working volume — vaccine-development and bioprocess workflows that use 85 mL bottles for intermediate concentration steps between smaller (50 mL) and larger (100/145 mL) volumes.

Mid-volume protein-prep workflows — TCA, ammonium-sulfate, organic-precipitation steps in 85 mL working volume; the oak-ridge format compatibility supports protein-prep workflows that benefit from the heavy-wall bottle's chemical resistance.

Environmental and analytical sample prep — water, soil-extract, sediment-supernatant prep at 85 mL bottle scale.

Mid-volume institutional clinical-research prep — pooled patient sample workflows in 85 mL working volume.

Cross-format Z307 chassis consolidation — labs running 85 mL alongside other bottle and tube formats on the same Z307 + Z306-100 bucket inventory.

Ordering & Configuration

4-bucket symmetric loading. All 4 buckets must use matching A85 inserts. Mixed-bucket configurations produce mass asymmetry.

Bottle cap confirmation. All bottles must be capped securely before spinning at 4,500 rpm; oak-ridge screw caps must be fully torqued for high-RCF workflows.

Bottle volume balance. When the 4 bottles carry different sample volumes, pre-balance pairs by total mass before spinning.

Z306-100-A85 ships as 2 inserts. Bottles (85 mL round-bottom or oak-ridge) are operator-supplied.

Confirm at quote: bucket pairing (Z306-100 in inventory), chassis pairing (Z307), bottle format (85 mL round-bottom or oak-ridge, 38 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-A85 (this product) — 85 mL round-bottom or oak-ridge (mid-volume)

- Z306-100-A50 / A50R — 50 mL conical / round (smaller mid-volume)

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

- Z306-100-A145 — 145 mL Nalgene round-bottom (largest bottle)

Pick the A85 when 85 mL is the workflow's working volume — the mid-step in the family between 50 mL and 100 mL bottle workflows.