PC-Screw Cap Lid for Z366-250 Bucket (2/pk)

The Z366-250-LID is the polycarbonate (PC) screw-cap lid for the Hermle Z366-250 swing-out bucket on the Z366 / Z366-K chassis 4-place rotor — sold as a 2-pack. The lid engages the bucket's hermetic-seal mode for BSL-2 + biosafety workflows: when fully threaded onto the bucket, the screw cap creates an aerosol-tight envelope around the tube load. The Z366-250 rotor takes 4 buckets × 1 lid each = 4 lids total for full hermetic configuration — buyer needs 2 packs of this SKU. The lid is the separate purchase that activates biosafety mode on the Z366-250 rotor system; without the lid, the bucket runs in non-sealable mode.

Key Specifications

Compatibility & When to Order This SKU

This SKU activates hermetic-seal capability on the Z366-250 bucket. Order Z366-250-LID when at least one of the following applies:

1. Commissioning a Z366-250 hermetic-seal configuration — order 2 units for full 4-bucket hermetic capability (4 lids).
2. Adding biosafety capability to an existing Z366 / Z366-K + Z366-250 install that currently runs in non-sealable mode — switching the workflow into BSL-2 + biosafety requires the lid set.
3. BSL-2 + clinical workflows on the deep cold-chain Z366-K chassis — clinical and clinical-research workflows handling potentially infectious patient samples (HIV research, hepatitis, TB, respiratory pathogens) requiring both deep cold-chain integrity (−2 °C at max speed) AND aerosol containment.
4. Replacement lids if a current set is damaged, the seal interface has worn, or the lids have reached service life.
5. Spare lid inventory for facilities running mixed BSL-2 / non-BSL-2 workflows that benefit from rotating lid sets through cleaning and decontamination cycles.

Why a Polycarbonate Screw Cap

The Z366-250-LID uses a PC (polycarbonate) screw-cap design distinct from the quick-lock or quarter-turn lid mechanisms used on some other Hermle bucket families. The PC screw cap is:

• Chemical-resistant — tolerates standard biosafety decontamination protocols (bleach, ethanol, peroxide-based disinfectants)
• Autoclavable — supports steam-sterilization between sample types
• Durable for repeated seal cycles — the threaded engagement maintains seal integrity over many open/close cycles
• Visually inspectable — transparent PC allows visual confirmation of the bucket interior before unsealing

The threaded screw-cap design takes longer to engage than quick-lock alternatives but provides high seal-integrity reliability for routine BSL-2 + workflows.

Application Profile

Deep cold-chain BSL-2 + clinical-blood-component prep — hospital and clinical-research labs requiring both refrigeration at near-freezing temperature AND biosafety containment for routine clinical-blood prep workflows.

Clinical-research infectious-disease cohort prep — patient sample prep workflows for infectious-disease research requiring containment from collection through cryostorage on the deep cold-chain platform.

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

Recombinant-protein and bioprocess prep at BSL-2 on the deep cold-chain chassis — recombinant-protein expression workflows handling genetically modified organisms in tube or bottle format with required aerosol containment and cold-chain preservation.

Cross-format BSL-2 Z366-K core facilities — shared cores running mixed BSL-2 workflows across multiple tube formats benefit from the lid-engaged sealable configuration with the Z366-250-A* insert family.

Ordering & Configuration

Hermetic-seal engagement. Per Hermle service instructions, the Z366-250-LID must be fully threaded onto each bucket before each spin to maintain the hermetic envelope at 3,780 × g. Partial thread engagement does not maintain seal integrity.

Lid-bucket compatibility. The Z366-250-LID is engineered specifically for the Z366-250 bucket. Confirm bucket inventory before ordering lids.

Z366-250-LID ships as 2 lids.

Required for operation:

• Z366-250 buckets (sold separately) — 4 buckets needed for full configuration (2 packs of bucket SKU)
• Z366-250-AC rotor body (sold separately) or already in inventory
• For full 4-bucket hermetic configuration: 2 units of this LID SKU

Confirm at quote: bucket pairing (Z366-250 in inventory), chassis pairing (Z366 or Z366-K), insert family (lid is compatible with the standard Z366-250-A* insert family), lid count needed (2 packs for full 4-bucket configuration), workflow biosafety driver, and lead time.

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

Z366-250 hermetic-seal procurement summary:

- Z366-250-LID (this product) — 2 PC-Screw cap lids; buyer needs 2 packs (4 lids) for full 4-bucket hermetic configuration

- Z366-250 — buckets that the lid engages (sold separately)

- Z366-250-AC — rotor body (sold separately)

- Z366-250-A* inserts for the workflow's tube/bottle format

The lid is the SKU that activates BSL-2 + biosafety mode on the Z366-250 rotor system — without it, the bucket runs non-sealed.