The Z306-100-A10 is a 7-position 10/15 mL round-bottom tube insert for the Hermle Z306-100 swing-out bucket on the Z307 chassis 4-place rotor — sold as a 2-pack. Each insert holds 7 tubes; the 4-bucket rotor configuration takes 2 packs (4 inserts) for full symmetric loading, delivering 28 × 10/15 mL round-bottom tubes per cycle when fully equipped.
Key Specifications
| SKU | Z306-100-A10 |
| Type | Tube insert — 7 × 10/15 mL round-bottom tube |
| Pack quantity | 2 inserts per SKU (full 4-bucket configuration takes 2 units = 4 inserts) |
| Per-insert capacity | 7 × 10/15 mL round-bottom tubes |
| Per-cycle throughput (full configuration) | 28 × 10/15 mL tubes per cycle |
| Tube format | 10 mL or 15 mL round-bottom (16 mm OD typical) |
| Compatible bucket | Z306-100 (swing-out bucket on Z307 4-place rotor) |
| Compatible chassis | Z307 |
| Max. operating speed (with insert + tubes) | Per Z306-100 spec — 4,500 rpm at 3,350 × g maximum |
| Max. radius | 14.8 cm |
| Acceleration / deceleration | 13 / 110 sec (accel); 18 / 158 sec (decel) — per host bucket spec |
| List price | $325 (2-pack) |
Compatibility & When to Order This SKU
Insert pairing — Z306-100 swing-out bucket only. This insert is engineered to seat into the Z306-100 bucket envelope on the Z307 chassis 4-place swing-out rotor. Order this SKU when:
- Adding 10/15 mL round-bottom tube workflow to an existing Z307 + Z306-100 install — order 2 units for full 4-bucket symmetric loading (28 tubes/cycle).
- Mixed-format Z307 workflow — when the lab handles 10 mL or 15 mL round-bottom tube formats alongside other workflows (50 mL, 100 mL, 145 mL inserts) on the same Z306-100 bucket.
- Replacement inserts if a current set is damaged or worn.
Application Profile
4-bucket symmetric loading. The Z307 4-place swing-out rotor takes 4 buckets; for symmetric balance at 4,500 rpm, all 4 buckets must use matching inserts (or none). Mixed-bucket configurations produce mass asymmetry.
Round-bottom vs conical. The A10 insert is dimensioned for round-bottom tube geometry — typically clinical / serological 10 mL round-bottom tubes or 15 mL round-bottom glass tubes. For 15 mL conical (Falcon, Corning) workflows on the same bucket, use the Z306-100-A15 insert instead (different shoulder geometry).
Design Architecture
Clinical-research and research blood-fraction workflows — 10 mL round-bottom tubes are common for clinical chemistry, serology, and immunoassay sample prep where the round-bottom geometry supports specific protocol steps.
Glass tube workflows — 15 mL glass round-bottom tubes for organic-chemistry compatibility, where the workflow uses solvents that polypropylene tubes don't tolerate.
Mid-volume sample prep — protein precipitation, organic extraction, supernatant collection in 10/15 mL working volume at 28-tube parallel throughput per cycle.
Cross-format Z307 chassis consolidation — labs running multiple tube formats on the Z307 + Z306-100 bucket can stock the full A* insert family (A10, A15, A20, A50, A57, A85, A100, A145) and serve any workflow with a quick insert swap.
Educational lab teaching workflows — undergraduate biology and clinical-tech curricula that include 10/15 mL round-bottom tube exercises.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching A10 inserts for symmetric balance. Mixed configurations (e.g., A10 in two buckets, A50 in two others) produce balance asymmetry.
Per-insert symmetric loading. Within each insert, the 7 tubes should be balanced symmetrically — pair tubes by mass, leave any odd position empty if needed and verify tube-mass balance across the full insert.
Tube cap confirmation. All tubes must be capped before spinning at 4,500 rpm.
Z306-100-A10 ships as 2 inserts. Tubes are operator-supplied (commodity 10 mL and 15 mL round-bottom formats).
Confirm at quote: bucket pairing (Z306-100 in inventory), chassis pairing (Z307), tube format (10 or 15 mL round-bottom), 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.
Z306-100 bucket insert family (Z307 chassis):
- Z306-100-A10 (this product) — 7 × 10/15 mL round-bottom
- Z306-100-A15 — 2 × 15 mL conical
- Z306-100-A20 — 10 × 1.5 / 2.0 mL microtube
- Z306-100-A50 — 50 mL conical
- Z306-100-A50R — 50 mL round
- Z306-100-A57 — 7 × 5/7 mL
- Z306-100-A85 — 85 mL bottle
- Z306-100-A100 — 100 mL bottle
- Z306-100-A145 — 145 mL bottle
Match the insert to the workflow's tube format; the Z306-100 bucket + Z307 chassis combination is engineered for high cross-format flexibility.
