The Z326-100H-A15L is the 15 mL long-tube (130 mm length) insert for the Hermle Z326-100H bucket on the Z327 / Z327-K chassis 4-place swing-out rotor — sold as a 2-pack. Each insert holds 1 × 15 mL extended-length tube; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 4 × 15 mL long tubes per cycle. The "L" suffix denotes long-tube (130 mm) format — for 15 mL Vacutainer-style or specialty round-bottom tubes that exceed the 120 mm length envelope of the standard A15 insert.
Key Specifications
| SKU | Z326-100H-A15L |
| Type | Tube insert — 1 × 15 mL long-tube (130 mm length) |
| Pack quantity | 2 inserts per SKU (full 4-bucket configuration takes 2 units = 4 inserts) |
| Per-insert capacity | 1 × 15 mL extended-length tube |
| Per-cycle throughput (full configuration) | 4 × 15 mL long tubes per cycle |
| Tube format | 15 mL Vacutainer-style or specialty round-bottom (16 mm OD, 130 mm length) |
| Bucket lid compatibility | Used without bucket lid (per Z327 brochure footnote — non-sealable mode) |
| Compatible bucket | Z326-100H bucket |
| Compatible chassis | Z327, Z327-K (refrigerated), and -E voltage variants |
| Max. operating speed (with insert + tube) | Per Z326-100H spec — 5,000 rpm at 4,080 × g maximum |
| Max. radius | 14.6 cm (0.2 cm radius correction with this insert) |
| Temperature at max speed (Z327-K refrigerated) | 2 °C |
| Geometry | Swing-out (0–90°) — flat sediment surface |
| List price | $267 (2-pack) |
Compatibility & When to Order This SKU
Insert pairing — Z326-100H bucket only. Order this SKU when:
- Adding 15 mL long-tube workflow to an existing Z327 / Z327-K + Z326-100H install — order 2 units for full 4-bucket symmetric loading (4 long tubes/cycle).
- 15 mL Vacutainer-style long blood-collection tubes that exceed the 120 mm length envelope of the standard A15 insert — common in some clinical phlebotomy formats and specialty research tube formats.
- Specialty round-bottom 15 mL tubes in the 130 mm length range used for specific protocol formats (some serological, some long-format glass tube workflows).
- Replacement inserts if a current set is damaged or worn.
Application Profile
Why a long-tube variant matters. Standard 15 mL tube formats split into two length classes: ~120 mm (Falcon, Corning conical and most clinical short formats) and ~130 mm (Vacutainer-style long blood tubes, some specialty round-bottom formats). The bucket envelope dimensions accommodate both classes, but each requires its own insert variant to seat the tube at the correct depth and balance position.
Non-sealed insert mode. Per the Z327 brochure footnote, the A15L insert is used without the bucket lid — non-sealable mode. For sealable 15 mL long-tube workflow, the Z326-100H sealed-bucket family does not currently offer a 130 mm length sealable variant; confirm at order if a sealable long-tube workflow is required.
4-bucket symmetric loading. All 4 buckets must use matching A15L inserts for symmetric balance.
Design Architecture
Cold-chain 15 mL Vacutainer-style long-tube clinical prep — clinical workflows using long-format Vacutainer-style 15 mL tubes for blood-component separation at cold-chain temperature.
Specialty serological and round-bottom long-tube workflows — protocols specifying 130 mm round-bottom tubes (some immunology, some glass-tube chemistry workflows) where the standard 120 mm A15 doesn't seat the tube correctly.
Cross-format Z327-K chassis flexibility — labs that handle both standard 120 mm and long 130 mm 15 mL formats can stock both A15 and A15L inserts and switch between them per workflow.
Mid-throughput long-tube prep — 4-tube parallel throughput at 4,080 × g and cold-chain temperature for the long-tube 15 mL format.
Veterinary clinical workflows — some veterinary phlebotomy uses long-format 15 mL collection tubes; the A15L delivers cold-chain veterinary blood-component separation on the Z327-K chassis.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching A15L inserts. Mixed-bucket configurations produce mass asymmetry.
Bucket lid removal. The A15L insert is used without the Z326-100H-LID — confirm the lid is not engaged on the buckets when running this insert.
Tube cap confirmation. All long tubes must be securely capped before spinning at 5,000 rpm.
Z326-100H-A15L ships as 2 inserts. 15 mL long tubes (130 mm length) are operator-supplied. The Z326-100H bucket is sold separately.
Confirm at quote: bucket pairing (Z326-100H in inventory), chassis pairing (Z327 or Z327-K), tube format (15 mL × 130 mm length confirmed; standard 120 mm tubes use A15 instead), pack count (2 packs for full 4-bucket configuration), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the inserts.
Z326-100H 15 mL insert family (Z327 / Z327-K chassis):
- Z326-100H-A15L (this product) — 1 × 15 mL long-tube (130 mm length), non-sealable
- Z326-100H-A15 — 2 × 15 mL conical (120 mm Falcon-style), non-sealable
- Z326-100H-A15S — 1 × 15 mL conical, sealable for BSL-2 + workflows
- Z326-100H-A15R — 15 mL round-bottom variant
Match the insert variant to the workflow's tube length and biosafety requirement; the A15L is the right pick when 15 mL tubes exceed 120 mm length.
