Luer Fittings And Connectors
Luer Lock Caps
Small molded luer caps and closures that seal an open port between procedures.
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Diagnostic Consumables
Vial Caps And Seals
Small molded caps and seals for vials and sample tubes.
Product Overview
What This Component Is
Small molded caps and seals for vials and sample tubes. They are ordered by the million and judged by a single question: does the vial still hold what it held when it left the laboratory.
Key Benefits
- Sealing land cut in the tool so it does not depend on assembly force
- High cavitation tooling suited to the volumes caps run at
- Colour coding molded in where lot or content identification is needed
Molded on tooling we cut ourselves in Shenzhen. Certification covers the site doing the work: ISO 9001:2015 and ISO 13485:2016.
Who It Is For
- Reagent manufacturers
- Laboratory consumable brands
- Sample transport suppliers
Problems It Solves
- Seals that fail after temperature cycling in transit
- Caps that crack when the capping machine is set for a harder resin
- Colour coding applied as a label that comes off when wet
Application Scenarios
- Vial and tube closure
- Sample transport sealing
- Reagent container closure
Technical Features
How It Is Engineered
- Sealing land geometry matched to the specific vial finish
- Capping torque window confirmed during sampling
- Moulded in colour rather than labelled after molding
Materials
- Medical grade resin selected against your specification rather than substituted by us
- Customer nominated grades accepted where a device master record already fixes the material
- Colourants and additives confirmed in writing before the first sampling run
Specifications
Documented Figures
| Part Family | Vial caps, closures and seals |
|---|---|
| Process | Injection molding on in house built tooling |
| Mold Machining Accuracy | 0.002-0.005 mm on ground surfaces |
| Molding Environment | ISO 8 clean room or conventional workshop |
| Quality System | ISO 9001:2015 and ISO 13485:2016 |
| Country Of Manufacture | Shenzhen, China |
Figures above are plant and tooling capabilities recorded on our own site. Part level tolerances are confirmed against your drawing at mold flow review rather than quoted as a blanket number.
Manufacturing Process
- Mold design review
- Steel machining and EDM
- Mold trial and cavity sampling
- Clean room or conventional molding
- In process dimensional check
- Clean room packing
Quality Control
- Cavity by cavity dimensional sampling before a tool is released
- In process checks during the molding run rather than only at the end
- ERP system records the lot, tool and machine behind every shipment
Customization Options
- Cavitation sized to your annual forecast instead of a fixed standard tool
- Colour and resin grade to your specification
- Clean room packing format and labelling agreed before the first shipment
Comparison
Compared With Other Routes
| Labelled caps | A moulded in colour survives condensation, freezing and handling. A label does not. |
|---|---|
| Stock closures | A stock closure fits a standard vial finish. If your vial is not standard, only a tooled closure will seal it. |
Use Guide
How To Handle It
- Confirm the capping torque window before scaling the line speed
- Test the seal after freeze and thaw if your samples are frozen
- Do not reuse closures after a freeze cycle
Questions Buyers Ask
Questions About Vial Caps And Seals
Can you match our existing vial finish?
Send a vial sample and the finish drawing. We measure both and tell you whether a match is achievable on a new tool.
How is colour coding handled?
Moulded in colour to your standard, confirmed in writing before sampling, and held against the tool record for repeat orders.
Are high cavitation tools available?
Yes. Cap volumes usually justify them, and our tool room builds them alongside our medical mold work.
Internal Links
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Graduated specimen containers with printed scales and biohazard marking, molded for collection and transport of clinical samples.
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Sample Tube Assemblies
Multi part sample tube assemblies combining a tube, an insert and a closure.
View Component →Quote This Component
Send the drawing, the annual volume and the resin your device file specifies. You will get a feasibility review rather than a price with conditions buried in it.