3 ml vial holders for 17 × 39 mm serum vials
Most 3 ml vials are a millimeter wider than a 2 ml, which is enough to matter. A 2 ml rack pinches them and a 5 ml rack lets them lean. The 3 ml rack is bored at 17.8 mm so the vial stands straight and the label faces out.
PETG, ASA, or PLA. Bore held to about ±0.2 mm. Cut to your measured vial on request, at no extra charge.
3 ml rack dimensions
| Vial designation | 3 ml serum (17 × 39 mm) |
|---|---|
| Vial body OD | 17 mm |
| Vial height | 39 mm |
| Bore diameter | 17.8 mm |
| Wall between bores | 3 mm |
| Center-to-center pitch | 20.8 mm |
| Rack height | 24 mm |
| Bore depth | 21 mm (3 mm floor) |
Vial dimensions are nominal per ISO 8362-1 or the common serum-vial equivalent. The bore follows your measured diameter when you give us one.
Capacity and footprint
| Positions | Grid | Footprint | Ships as |
|---|---|---|---|
| 10 | 5 × 2 | 110 × 48 mm | One piece |
| 25 | 5 × 5 | 110 × 110 mm | One piece |
| 50 | 10 × 5 | 214 × 110 mm | One piece |
| 100 | 10 × 10 | 214 × 214 mm | One piece |
Fit
Cut for a 17 mm body with 0.4 mm of clearance per side. The 24 mm bore depth holds a 39 mm vial at just past its midpoint, low enough to stay put in a drawer and high enough to grab.
Where the 3 ml rack earns its bench space
Suppliers who run 2 ml and 3 ml side by side usually order both racks in different colors so a tech never has to read the label to know which tray is which.
Material options
- PETGDefault
- ASAHeat and sun
- PLABudget, indoor
Not autoclavable, no sterility claims. Detail on the rack hub.