Sealed Buckets for Z326-100H-AC (2/pk)

The Z326-100H-BUK is the hermetically sealed bucket that pairs with the Hermle Z326-100H-AC swing-out rotor body on the Z327 / Z327-K chassis — sold as a 2-pack. The Z326-100H-AC rotor body holds 4 buckets, so a complete 4-bucket configuration requires 2 units of Z326-100H-BUK (4 buckets total). The defining characteristic of this bucket is the hermetic-seal design — when paired with the Z326-100H-LID (sold separately), the bucket creates an aerosol-tight envelope around the tube load for BSL-2 + clinical and clinical-research workflows.

Key Specifications

Compatibility & When to Order This SKU

This SKU is the bucket only. Order Z326-100H-BUK when at least one of the following applies:

1. Commissioning a Z326-100H-AC rotor body — order 2 units for a complete 4-bucket configuration. Plus the Z326-100H-LID (one per bucket = 4 lids total) for hermetic-seal capability.
2. Adding sealed-bucket capability to an existing Z327 / Z327-K install that currently uses a different rotor configuration.
3. Replacement buckets if a current set is damaged or has reached service life.
4. Spare bucket inventory for facilities running mixed BSL-2 workflows that benefit from rotating bucket sets through cleaning and decontamination cycles between sample types.

Why Sealed-Bucket Geometry Matters

Standard swing-out buckets (non-sealed) accept tubes and adapters but rely on individual tube caps for any aerosol containment. The Z326-100H-BUK + Z326-100H-LID combination adds a second containment layer at the bucket level — an aerosol-tight envelope around the entire tube load. This matters for:

• BSL-2 + clinical workflows handling potentially infectious patient samples (HIV research, hepatitis, TB, respiratory pathogens) where the chain of containment must be maintained from biosafety cabinet through centrifugation back to cabinet
• Recombinant-DNA workflows at BSL-2 + that handle genetically modified organisms
• Aerosol-prone sample types (volatile chemicals, foaming protein preps, lyophilized material in suspension) where individual tube cap failure would otherwise contaminate the rotor and chamber

The hermetic seal is rated to the rotor's full 4,080 × g maximum.

Application Profile

4-bucket symmetric loading. All 4 buckets must be installed for symmetric balance at 5,000 rpm — running with fewer than 4 buckets is not supported.

Insert compatibility. The Z326-100H-BUK accepts the full Z326-100H-A* insert family — 10 distinct insert variants spanning microtubes (A20), clinical blood tubes (A57, A10), 15 mL conical and round-bottom variants (A15, A15S, A15L, A15R), 30 mL Universal (A30), 50 mL conical and round (A50, A50R), and mid-volume bottle inserts (A85, A100). Plus direct-fit bucket variants B15 (3 × 15 mL conical) and B50 (2 × 50 mL conical) that replace the insert+adapter approach for those formats.

Cold-chain integrity. On the Z327-K refrigerated chassis, the rotor maintains 2 °C at max operating speed — supporting cold-chain protocols for clinical-blood-component prep, density-gradient prep, and cold-stable bioprocess workflows.

Design Architecture

Cold-chain BSL-2 + clinical-blood-component prep at institutional scale — hospital and clinical-research labs requiring both refrigeration and biosafety containment for routine clinical-blood prep workflows.

Clinical-research infectious-disease cohort prep — patient sample prep workflows for infectious disease research (HIV, TB, hepatitis, respiratory pathogen studies) requiring containment from collection through cryostorage.

Biobank intake workflows handling potentially infectious specimens — biobank prep for clinical-research studies that include BSL-2 + sample types.

Recombinant-protein and bioprocess prep at BSL-2 — recombinant-protein expression workflows handling genetically modified organisms in bottle or tube format with required aerosol containment.

Cross-format BSL-2 Z327-K core facilities — shared cores running mixed BSL-2 workflows across multiple tube formats benefit from the sealed-bucket configuration with the full insert family.

Ordering & Configuration

4-bucket symmetric loading is mandatory; insert configurations across the 4 buckets must match for symmetric balance.

Hermetic-seal engagement. Per Hermle service instructions, the Z326-100H-LID must be fully engaged on each bucket before each spin to maintain the hermetic envelope at 4,080 × g. Partial lid engagement does not maintain seal integrity.

Adapter / insert verification before loading — confirm the chosen insert is fully seated in the bucket envelope and the tubes are correctly oriented per the insert design.

Z326-100H-BUK ships as 2 sealed buckets — no rotor body, no lids, no inserts.

Required for operation:

• Z326-100H-AC rotor body (sold separately) or already in inventory
• For full 4-bucket configuration: order 2 units of this SKU
• Z326-100H-LID (sold separately — 4 lids needed for full hermetic configuration)
• Inserts (Z326-100H-A* or direct-fit B-variants, sold separately) for the workflow's specific tube format

Confirm at quote: rotor-body pairing (existing Z326-100H-AC inventory or new rotor-body order), bucket count needed (2 or 4), lid count needed (1 per bucket), insert family needed for intended tube formats, biosafety workflow drivers, and lead time.

Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the buckets. Hermetic-seal interface is a planned-inspection item for biosafety workflows — Hermle's standard service interval recommendation includes the seal-integrity check.

Z326-100H rotor system procurement summary (Z327 / Z327-K chassis):

- Z326-100H-AC (rotor body, sold separately) + 2 × Z326-100H-BUK (4 sealed buckets) + 4 × Z326-100H-LID (lids for hermetic seal) = full sealed-bucket configuration

- Add insert SKUs (Z326-100H-A* family) per the workflow's tube format

- Or use direct-fit Z326-100H-B15 / B50 buckets when the standard 15 mL conical or 50 mL conical workflow doesn't need the insert+adapter approach