The Z216-24HEM is the 24-position hematocrit capillary rotor for the Hermle Z216-M — adding clinical hematocrit determination to a chassis that primarily runs high-speed microtube workflows. The rotor holds 24 sealed hematocrit capillary tubes in a 90° true-horizontal layout; at 12,000 rpm / 14,970 × g the capillaries spin at protocol-compliant RCF for packed-cell-volume separation. Z216-M only — not compatible with the refrigerated Z216-MK chassis (the MK chassis-rotor inventory does not include this hematocrit rotor in the standard Hermle accessory list).
Key Specifications
| SKU | Z216-24HEM |
| Type | Hematocrit capillary rotor — 24 position |
| Capacity | 24 hematocrit capillary tubes |
| Compatible chassis | Z216-M only (not Z216-MK refrigerated) |
| Angle | 90° (true horizontal at full speed) |
| Max. operating speed | 12,000 rpm |
| Max. RCF at operating speed | 14,970 × g |
| Max. radius | 9.3 cm |
| Acceleration | 15 / 119 sec (standard / extended profile) |
| Deceleration | 15 / 119 sec (standard / extended-unbraked) |
Compatibility & Configuration
Chassis compatibility — Z216-M only. Engineered for the Z216-M spindle and chamber geometry. The narrower chassis pairing (M only, not MK) reflects Hermle's accessory catalog as published; refrigerated hematocrit workflows on the Z216 family are not part of the standard configuration. RFID-tagged; chassis applies the rated 12,000 rpm cap automatically.
24-place capillary layout. Holds 24 standard heparinized hematocrit capillary tubes (typically 75 mm length, sealed at one end with hematocrit clay or heat seal). Same capillary count as the dedicated Z207-H Hematocrit Centrifuge and the Z287-24HEM rotor for the Z287-A chassis.
Hematocrit reading workflow — pair with a capillary reading disc (Z207-HEM-RD or other commercial hematocrit reading aid) to read packed-cell-volume directly from the spun capillaries.
Application Profile
Hematocrit determination on Z216-M — clinical, clinical-research, and veterinary hematocrit testing for anemia screening, polycythemia evaluation, dehydration assessment.
Multi-purpose Z216-M workflow consolidation — when the lab's primary instrument is the Z216-M for high-speed microtube workflows (DNA extraction, PCR cleanup, microvolume protein) and hematocrit is an occasional test, this rotor adds the capability without requiring a dedicated hematocrit centrifuge.
Veterinary practices running hematocrit as a routine anemia screen — the Z216-M + Z216-24HEM combination delivers compact-bench hematocrit testing alongside the chassis's microtube capability.
Point-of-care satellite labs using the Z216-M as the universal-microcentrifuge platform where hematocrit is one of the routine clinical tests.
Ordering & Configuration
24-capillary symmetric loading. Capillaries are lightweight individually; operator must distribute them symmetrically and confirm sealing (clay or heat seal) before each spin to prevent sample loss at 12,000 rpm.
Z216-24HEM ships as the rotor body alone. Capillary tubes, sealing clay, and reading discs are operator-supplied (commodity clinical supplies).
Confirm Z216-M chassis pairing (not Z216-MK), training (hematocrit-specific protocol training typical), lead time at quote.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the rotor body.
Hematocrit rotor selection across Hermle chassis families:
- Z216-24HEM (this product) — for Z216-M (high-speed microcentrifuge chassis)
- Z287-24HEM — for Z287-A (universal compact-bench chassis)
- Z207-H — dedicated hematocrit-only chassis with integrated 24-capillary rotor
Pick the chassis-specific rotor when the chassis is already in the lab and hematocrit is an additional workflow. Pick the Z207-H when hematocrit is the primary or sole workflow at higher routine volume.
