The Z366-06250-A15 is a 4-position 15 mL conical tube adapter for the Hermle Z366-06250 6 × 250 mL angle rotor on the Z366 / Z366-K chassis — sold as a 2-pack. Each adapter holds 4 × 15 mL conical tubes; the 6-position rotor takes 3 packs (6 adapters) for full symmetric loading, delivering 24 × 15 mL conical tubes per cycle at the host rotor's high-RCF range (10,016 × g). The Z366-06250 is the 250 mL workflow rotor in the Z366 family — at 8,000 rpm / 10,016 × g / 14 cm radius / 3 °C at max speed, it serves bottle workflows; with this adapter, it converts to high-RCF 15 mL conical workflow on the same chassis.
Key Specifications
| SKU | Z366-06250-A15 |
| Type | Tube adapter — 250 mL angle position → 4 × 15 mL conical |
| Pack quantity | 2 adapters per SKU (full 6-position rotor takes 3 units = 6 adapters) |
| Per-adapter capacity | 4 × 15 mL conical tubes |
| Per-cycle throughput (full configuration) | 24 × 15 mL conical per cycle |
| Tube format | 15 mL conical Falcon-style (17 mm OD, 120 mm length) |
| Compatible host rotor | Z366-06250 (6 × 250 mL angle rotor) |
| Compatible chassis | Z366, Z366-K (refrigerated), and -E voltage variants |
| Max. operating speed (with adapter + tubes) | Per Z366-06250 spec — 8,000 rpm at 10,016 × g maximum |
| Max. radius | 14 cm |
| Temperature at max speed (refrigerated chassis) | 3 °C |
| Angle | 28° (fixed-angle host rotor) |
| List price | $275 (2-pack) |
Compatibility & When to Order This SKU
Adapter pairing — Z366-06250 250 mL angle rotor only. This adapter is engineered for the Z366-06250 250 mL position envelope. Order this SKU when:
- Adding 15 mL conical workflow to a Z366-06250 install — order 3 units for full 6-position symmetric loading (24 tubes/cycle).
- High-RCF 15 mL conical workflows — when 15 mL conical workflow needs the >10,000 × g range that the 250 mL host rotor delivers (substantially exceeds the 4,427 × g of dedicated 15 mL workflow rotors on smaller chassis).
- Cold-chain high-RCF 15 mL conical prep on Z366-K — when both refrigeration (3 °C at max speed) AND high RCF are required for the 15 mL workflow.
- Replacement adapters if a current set is damaged or worn.
Why a 250 mL Rotor Becomes a 15 mL Rotor
The Z366-06250 6 × 250 mL angle rotor is engineered for 250 mL bottle workflows (institutional bulk cell harvest, large-volume vaccine intermediate prep, environmental sample prep). When the workflow shifts to 15 mL conical, the chassis would normally need a rotor swap to a dedicated 15 mL rotor — except the Z366-06250-A15 adapter keeps the workflow on the same Z366-06250 rotor, with the higher-RCF range (10,016 × g) preserved for the smaller tubes.
This matters when:
- The lab's 250 mL workflow is primary but 15 mL conical is occasional
- The 15 mL workflow specifically needs >10,000 × g (vs the lower-RCF range of dedicated 15 mL rotors on smaller chassis)
- Rotor-swap downtime is a workflow constraint
Application Profile
High-RCF cold-chain 15 mL conical clinical-research prep — patient sample fractionation, density-gradient prep, biobank aliquot prep at 24 × 15 mL conical per cycle on the cold-chain high-RCF rotor.
High-RCF cell-pellet recovery in 15 mL conical — when the workflow needs tight pellet compaction at the 15 mL scale that the 10,016 × g range delivers.
Density-gradient prep in 15 mL at high RCF — Ficoll, Percoll, sucrose-gradient workflows requiring >10,000 × g.
Mixed 250 / 15 mL workflow consolidation — when the lab's primary chassis is configured for 250 mL bottle workflows on the Z366-06250 rotor but occasional 15 mL conical workflows arise.
Cross-format Z366-K core facilities — shared cores running both 250 mL bottle and 15 mL conical workflows on the same chassis benefit from the adapter approach.
Educational and graduate-level teaching workflows — high-throughput 15 mL conical workflows on a chassis that primarily teaches bulk-volume bottle prep.
Ordering & Configuration
6-position symmetric loading. All 6 positions must use matching A15 adapters for symmetric balance at 8,000 rpm.
Per-adapter symmetric loading. Within each adapter, the 4 conical tubes should be balanced — pair tubes by mass.
Adapter seat verification. Confirm each adapter is fully seated in its 250 mL position before loading the 15 mL tubes.
Tube cap confirmation. All 15 mL conical tubes must be securely capped before spinning at 8,000 rpm.
Z366-06250-A15 ships as 2 adapters. 15 mL conical tubes are operator-supplied (commodity Falcon / Corning / equivalent formats).
Confirm at quote: host rotor (Z366-06250 in inventory), chassis pairing (Z366, Z366-K), tube format (15 mL conical Falcon-style), pack count (3 packs for full 6-position configuration = 24 tubes/cycle), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the adapters.
Z366-06250 adapter family (6 × 250 mL angle rotor):
- Z366-06250-A15 (this product) — 4 × 15 mL conical (24/cycle full configuration)
- Z366-06250-A30 — 2 × 30 mL (12/cycle)
- Z366-06250-A50 — 1 × 50 mL conical (6/cycle)
- Z366-06250-A50R — 1 × 50 mL round (6/cycle)
- Z366-06250-A225C — 1 × 175/225 mL conical (6/cycle)
Match the adapter to the workflow's tube format. The Z366-06250 rotor's high-RCF range is preserved across all adapter configurations for high-force prep at smaller volumes.
