The Z287-24HEM is the 24-position hematocrit capillary rotor for the Hermle Z287-A — extending the Z287-A chassis's workflow range into clinical hematocrit measurement. The rotor holds 24 sealed hematocrit capillary tubes in a 90° true-horizontal layout; at 13,000 rpm / 16,058 × g, capillaries spin at the protocol-specified RCF for packed-cell-volume separation. For clinical labs and clinical-research facilities whose primary instrument is the Z287-A and whose workflow includes hematocrit determination, this rotor avoids the need for a separate dedicated hematocrit centrifuge (e.g., the Z207-H).
Key Specifications
| SKU | Z287-24HEM |
| Type | Hematocrit capillary rotor — 24 position |
| Capacity | 24 hematocrit capillary tubes |
| Compatible chassis | Z287-A (specifically engineered for this chassis) |
| Angle | 90° (true horizontal at full speed) |
| Max. operating speed | 13,000 rpm |
| Max. RCF at operating speed | 16,058 × g |
| Max. radius | 8.5 cm |
| Acceleration | 30 / 319 sec (standard / extended profile) |
| Deceleration | 33 / 334 sec (standard / extended-unbraked) |
Compatibility & Configuration
Chassis compatibility — Z287-A only. Engineered for the Z287-A spindle and chamber geometry. RFID-tagged; chassis applies the rated 13,000 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.
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 Z287-A — clinical, clinical-research, and veterinary hematocrit testing for anemia screening, polycythemia evaluation, dehydration assessment.
Multi-purpose Z287-A workflow consolidation — when the lab's primary instrument is the Z287-A and the workflow includes occasional hematocrit determination, this rotor adds the capability without requiring a separate dedicated hematocrit centrifuge.
Veterinary practices running hematocrit as a routine anemia screen on small-animal samples — the Z287-A + Z287-24HEM combination delivers compact-bench hematocrit testing.
Point-of-care satellite labs where a Z287-A is the universal-centrifuge platform and hematocrit is one of the routine tests.
Ordering & Configuration
24-capillary symmetric loading. Capillaries are lightweight individually, but operator should distribute them symmetrically and confirm sealing (clay or heat seal) before each spin to prevent sample loss at 13,000 rpm.
Z287-24HEM ships as the rotor body alone. Capillary tubes, sealing clay, and reading discs are operator-supplied (commodity clinical supplies).
Confirm Z287-A chassis pairing, 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 workflow chassis selection: the Z287-24HEM (this product) extends hematocrit capability to the Z287-A chassis. For dedicated hematocrit-only workflows at higher throughput, the Z207-H Hematocrit Centrifuge is the purpose-built alternative — its integrated 24-capillary rotor doesn't require chassis-rotor pairing and the entire chassis is engineered around hematocrit. Pick the Z287-24HEM when hematocrit is one workflow among several on a shared Z287-A; pick the Z207-H when hematocrit is the lab's primary or sole workflow.
