The Z287-0815 is the 8-position fixed-angle rotor for 15 mL tubes on the Hermle Z287-A compact universal centrifuge — the workhorse rotor for 15 mL conical workflows on the Z287-A chassis. At 8,000 rpm / 6,153 × g, the rotor delivers RCF appropriate for cell-culture pellet recovery, serum/plasma separation in 15 mL collection tubes, and routine 15 mL prep across most clinical-research and educational-lab workflows. Z287-A only — engineered for the Z287-A spindle and chamber geometry.
Key Specifications
| SKU | Z287-0815 |
| Type | Fixed-angle rotor — 8 position |
| Capacity | 8 × 15 mL conical tubes (or 15 mL glass round-bottom) |
| Compatible chassis | Z287-A |
| Max. operating speed | 8,000 rpm |
| Max. RCF at operating speed | 6,153 × g |
| Max. radius | 8.6 cm |
| Max. tube diameter | 17 mm |
| Acceleration | 22 / 198 sec (standard / extended profile) |
| Deceleration | 23 / 212 sec (standard / extended-unbraked) |
| Tube format | 15 mL conical (Falcon, Corning, equivalent 17 mm OD); 15 mL glass round-bottom 105–120 mm length |
| Adapter compatibility | Z326-15-A7 (1 × 7 mL, 13 mm); Z326-15-A5 (1 × 5 mL, 13 mm) for smaller-volume tubes within the 15 mL position |
Compatibility & Configuration
Chassis compatibility — Z287-A family. Engineered for the Z287-A compact universal centrifuge spindle and chamber. Works with the standard Z287-A (115 V) and its 230 V voltage variant.
8 × 15 mL throughput. Eight tubes per cycle is the workhorse batch size for educational and small-clinical 15 mL workflows — matches a typical 8-sample teaching block, and pairs cleanly with multichannel-pipette downstream prep workflows.
Adapter library — smaller-volume flexibility. The 15 mL position accepts the Z326-A series adapters (cross-compatible adapter family across Hermle 15 mL rotor positions):
Z326-15-A7 — 1 × 7 mL tube (13 mm ø, 95–115 mm length)Z326-15-A5 — 1 × 5 mL tube (13 mm ø, 65–90 mm length)
The adapter approach lets a single rotor handle 15 mL, 7 mL, and 5 mL tubes within the same cycle — useful when a workflow batches multiple tube formats in a single run (e.g., 15 mL bulk prep + 5 mL aliquots in adjacent positions).
Glass tube compatibility. Round-bottom glass tubes (105–120 mm length) seat directly without adapter, supporting workflows that use glass for chemical compatibility (organic solvents, strong acid/base reactions).
Application Profile
Cell-culture pellet recovery in 15 mL conical — pelleting non-adherent cells from suspension culture, washing cell pellets between media changes, harvesting cells for downstream extraction.
Serum and plasma separation in 15 mL collection format — when the workflow uses 15 mL primary collection (vs the 10 mL clinical default), the Z287-0815 delivers per-cycle throughput of 8 patient samples.
Bench-scale protein precipitation and resuspension — TCA precipitation, ammonium sulfate cuts, organic solvent extractions in 15 mL working volume.
Educational and teaching laboratories — undergraduate biology, biochemistry, and clinical-tech curricula where 15 mL is the standard teaching format. The 8-position layout matches a typical 8-student-pair teaching block.
Small-clinical and clinical-research routine prep — sample concentration, supernatant collection, mid-volume aliquot prep on the Z287-A chassis.
Mixed-format workflows via adapters — when the protocol uses a mix of 15 mL, 7 mL, and 5 mL tubes (e.g., bulk culture in 15 mL → wash and resuspend in 5 mL), the adapter library handles all formats in one rotor.
Loading & Balance
8-position symmetric loading. Pair opposite positions (1+5, 2+6, 3+7, 4+8) by tube mass. 15 mL conical tubes filled to consistent volume balance cleanly; mixed-volume runs require pre-balance.
Adapter symmetry. When using adapters, paired positions must use matching adapters and matching tube formats — a 15 mL tube paired against a 5 mL-in-adapter combination produces mass asymmetry.
Tube cap confirmation. All tubes must be securely capped before spinning at 8,000 rpm — uncapped tubes risk sample aerosol and rotor contamination.
Selectable accel/decel. Z287-A chassis profiles apply; the unbraked extended-decel profile (212 sec) preserves loose pellets and density layers — useful for cell-culture pellets that can resuspend on hard braking.
Ordering & Configuration
Z287-0815 ships as the rotor body alone. Adapters (Z326-15-A7, Z326-15-A5) for smaller-volume tubes are sold separately. Tubes are operator-supplied (commodity 15 mL conical and 5/7 mL formats).
Confirm at quote: chassis pairing (Z287-A confirmed), adapter inventory (which smaller-tube formats the workflow uses), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the rotor body.
Z287-A 15 mL workflow rotor selection:
- Z287-0815 (this product) — 8 × 15 mL at 6,153 × g for the workhorse 15 mL workflow
- Z287-1215 — 12 × 15 mL at 4,427 × g for higher per-cycle throughput at slightly lower RCF
- Z287-0450H — 4 × 50 mL with 15 mL adapter compatibility for workflows that primarily run 50 mL with 15 mL secondary use
Pick the 0815 for standard 15 mL throughput and higher RCF; pick the 1215 when batch size matters more than peak RCF.
