The Z206-50-A5C is a 5 mL tube cushion that nests inside the Z206-50-A57 7 mL adapter on the Hermle Z206-0650 6 × 50 mL angle rotor (Z206-A chassis) — sold as a 6-pack. Per the brochure footnote convention, the cushion is part of a nested-adapter approach: the A57 7 mL adapter sits in the 50 mL position envelope; the cushion sits inside the A57 to further reduce the envelope to a 5 mL tube fit. The 6-position rotor takes 1 pack (6 cushions) for full configuration when running 5 mL workflow.
Key Specifications
| SKU | Z206-50-A5C |
| Type | Tube cushion — nests inside Z206-50-A57 adapter for 5 mL tube fit |
| Pack quantity | 6 cushions per SKU (full 6-position rotor configuration) |
| Tube format accepted | 1 × 5 mL tube (13 mm OD, 65–90 mm length) |
| Required pairing | Z206-50-A57 7 mL adapter (the cushion only works nested inside the A57) |
| Compatible host rotor | Z206-0650 (6 × 50 mL angle rotor on Z206-A chassis) |
| Compatible chassis | Z206-A |
| Max. operating speed (with cushion + adapter + tube) | Per Z206-0650 spec — 6,000 rpm at 4,427 × g maximum |
| List price | $56 (6-pack) |
Compatibility & When to Order This SKU
Cushion pairing — Z206-50-A57 adapter only. Order this SKU when:
- Adding 5 mL tube workflow to a Z206-A + Z206-0650 + Z206-50-A57 install via the nested-adapter approach.
- Replacement cushions if a current set is damaged or worn.
- Spare cushion inventory for facilities running mixed 5 / 7 mL workflows.
Application Profile
Pediatric / small-volume blood-tube workflows on Z206-A — when 5 mL Vacutainer-style or other 5 mL formats are part of the workflow alongside 7 mL or 50 mL tubes on the same Z206-0650 rotor.
Mixed-volume aliquot prep — when the workflow batches 5 mL aliquot tubes alongside other formats on the same chassis.
Veterinary clinical workflows — small-animal blood-tube workflows in 5 mL format.
Ordering & Configuration
Symmetric nested-adapter loading. All 6 positions on the rotor must use matching configurations — all six A57 + cushion nested combinations for full 5 mL workflow.
Z206-50-A5C ships as 6 cushions. Z206-50-A57 adapters and 5 mL tubes are sold separately.
Confirm at quote: rotor pairing (Z206-0650 in inventory), adapter pairing (Z206-50-A57 in inventory — required for nested-adapter approach), chassis pairing (Z206-A), tube format (5 mL, 13 mm OD), pack count, and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the cushions.
Z206-50-A57 nested-adapter family (Z206-0650 6 × 50 mL angle rotor):
- Z206-50-A5C (this product) — 5 mL cushion (nests inside A57 adapter)
- Z206-50-A57 — 7 mL round adapter (the host adapter for the cushion)
- Z206-50-A15 — 15 mL conical adapter (sister format on the same rotor)
The cushion-nested approach lets one 50 mL rotor handle three formats (50 mL direct, 7 mL via A57, 5 mL via A57 + cushion).
