85 mL Bottle Insert for Z327-200-BUK (2/pk)

The Z327-200-A85 is the 85 mL round-bottom bottle insert for the Hermle Z327-200-BUK swing-out bucket on the Z327 / Z327-K chassis 4-place rotor — sold as a 2-pack. Each insert holds 1 × 85 mL bottle; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 4 × 85 mL bottles per cycle (340 mL total) in swing-out geometry. 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 bottle insert (A100).

Key Specifications

Compatibility & When to Order This SKU

Insert pairing — Z327-200-BUK swing-out bucket only. Order this SKU when:

1. Adding 85 mL bottle workflow to an existing Z327 / Z327-K + Z327-200 install — order 2 units for full 4-bucket symmetric loading (340 mL total per cycle).
2. Mid-volume bioprocess prep at 85 mL — vaccine-development and bioprocess workflows that batch 85 mL bottles for intermediate concentration steps.
3. Optional cold-chain workflow on the Z327-K refrigerated chassis.
4. Optional BSL-2 + workflow with the Z327-200-LID engaged for hermetic containment.
5. Replacement inserts if a current set is damaged or worn.

Application Profile

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

Bottle format precision. The A85 envelope is dimensioned for the 38 mm OD × 116 mm length range. Bottles outside this dimensional range may not seat properly; verify dimensions if using non-standard bottle suppliers.

Mid-volume position in the bottle insert family. The A85 sits between the smaller A50 / A50R (50 mL) and the larger A100 (100 mL) bottle inserts — the right pick when 85 mL is the workflow's specific intermediate volume.

Optional hermetic seal via LID. Compatible with the Z327-200-LID for BSL-2 + 85 mL bottle workflows.

Design Architecture

Mid-volume cell harvest workflows — pelleting cells from 85 mL suspension culture batches at 4 bottles per cycle on the swing-out chassis.

Bioprocess intermediate prep at 85 mL — vaccine-development workflows that use 85 mL bottles as the intermediate concentration step between smaller (50 mL) and larger (100 mL) volumes.

Cold-chain mid-volume bottle workflows on Z327-K — refrigerated 85 mL bottle workflows for cold-stable bioprocess intermediates.

Mid-volume protein-prep workflows — TCA, ammonium-sulfate, organic-precipitation in 85 mL working volume on the swing-out platform.

BSL-2 + bioprocess prep at 85 mL — recombinant-protein expression and bioprocess prep handling genetically modified organisms in 85 mL bottle format with hermetic containment.

Cross-format Z327-K core facilities — labs running 85 mL bottle alongside other tube and bottle formats benefit from stocking the cross-format Z327-200 insert family.

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 5,000 rpm.

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

Optional hermetic-seal engagement. When using the Z327-200-LID for biosafety workflows, confirm the lid is fully engaged on each bucket before each spin.

Z327-200-A85 ships as 2 inserts. Bottles (85 mL round-bottom) and the Z327-200-BUK bucket are sold separately. Z327-200-LID (optional) sold separately.

Confirm at quote: bucket pairing (Z327-200-BUK in inventory; Z327-200-LID if biosafety required), chassis pairing (Z327 or Z327-K), bottle format (85 mL round-bottom, 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.

Z327-200 bottle-insert family (Z327 / Z327-K chassis):

- Z327-200-A85 (this product) — 85 mL bottle (mid-volume)

- Z327-200-A100 — 100 mL round-bottom glass

- Z327-200-A200 — 200 mL bottle (largest in family)

- Z327-200-A50 / A50R / A50SS — 50 mL variants (smaller mid-volume)

Pick the A85 when 85 mL is the workflow's specific working volume.