10 × 50 mL Round-Bottom Insert for Z496-1000-RBUK (2/pk)

The Z496-1000-A50R is the 10 × 50 mL round-bottom tube insert for the Hermle Z496-1000-RBUK rectangular bucket — sold as a 2-pack. Sister to the Z496-1000-A50 conical insert at the same throughput (40 tubes/cycle in full 4-bucket configuration), this variant is engineered for round-bottom 50 mL tubes rather than conical Falcon-style. Pick the round-bottom variant when the workflow uses round-bottom 50 mL primary tubes (some clinical-research formats, certain blood-collection systems) or when bulk-supernatant recovery from a wider tube-bottom is preferred over conical-tip pellet concentration.

Key Specifications

Compatibility & Configuration

Insert pairing — Z496-1000-RBUK rectangular bucket only. Engineered to fit inside the rectangular-bucket envelope.

Round-bottom vs conical-bottom tube selection. Round-bottom 50 mL tubes don't taper to a point — pellet distribution at the bottom is wider and shallower than in conical-bottom geometry. Use cases:

• Round-bottom (this insert) — better for bulk-supernatant recovery via decant or wide-bore aspiration, certain blood-collection systems that ship as round-bottom Vacutainer-style 50 mL tubes
• Conical (Z496-1000-A50) — better for pellet aspiration to the conical tip, smaller-pellet recovery from clean supernatants

40-tube parallel throughput matches the Z496-1000-A50 (conical) variant — the bucket-position layout is the same; the difference is tube-position geometry within the insert.

Ordering & Configuration

Z496-1000-A50R ships as 2 inserts. 50 mL round-bottom tubes are operator-supplied.

Confirm rectangular-bucket inventory, rotor-body pairing, and tube format (round-bottom vs conical) at quote.

Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the inserts.

A50 vs A50R selection: for conical 50 mL workflows (Falcon-style cell-culture, biobank, vaccine prep), order Z496-1000-A50. For round-bottom 50 mL workflows (some clinical-research blood-collection formats, bulk-supernatant decant workflows), order this Z496-1000-A50R. Don't mix tube-bottom geometries within a single insert — match the insert to the dominant tube format.